Crocus Shdsl g703

Crocus SHDSL G703User and reference manual

Version: 1.8 - 500871

13 November 2007

SAFETY WARNING

Carefully read the safety instructions, installation precautions and connection precautions as stated in chapter 2 - Installing and connecting the Crocus SHDSL G703.

How to navigate in this document?

(Scroll down to see entire note) This document contains bookmarks, links and cross-references to allow easy navigation. The following paragraphs of this note describe what you can use to navigate and how to use it. 1. Bookmarks ------------------- Bookmarks are located in the bookmark window of the Acrobat Reader. Click on a bookmark and you jump to the corresponding part in the document. The bookmark window also gives you an overview of the document structure. It is a handy tool because it is always visible. 2. Table of contents (complete manual) ----------------------------------------------------- In the preface you find a table of contents covering the complete document. Click on a title in the table of contents and you jump to the corresponding part in the document. 3. Table of contents (per section) --------------------------------------------- Every chapter or section containing numbered sub-titles starts with a table of contents covering that chapter or section. Click on a title in this table and you jump to the corresponding part in the document. 4. Cross-references ---------------------------- Throughout the text, there are cross-references to other chapters, sections or paragraphs. They usually start with "Refer to" and are blue in colour. Click on such a cross-reference and you jump to the corresponding part in the document. 5. Figure links -------------------- Some figures also may contain cross-references (also blue in colour). Click on such a link and you jump to that part in the document which explains that particular part of the figure. 6. Internet links ---------------------- This document also contains Internet links. Click on such a link and you are redirected to the corresponding web page. 7. Index ----------- At the end of the manual you find an index containing several keywords. Click on the page number after such a keyword and you jump to the corresponding part in the document. Note ------- If you click on a bookmark, link or cross-reference, you jump to the corresponding part in the document. You can always go back to that part in the document where you clicked on the link. Do this by pressing simultaneously the control and left arrow key: CTRL + <- For more navigation tools, refer to the Document menu of your Acrobat Reader.

Crocus SHDSL G703 Copyright, safety and statements

User manual

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Document properties

Copyright notice

The information and descriptions contained in this publication are the property of OneAccess. Such infor-mation and descriptions must not be copied or reproduced by any means, or disseminated or distributed without the express prior written permission of OneAccess.

This publication could include technical inaccuracies or typographical errors, for which OneAccess never can or shall be held liable. Changes are made periodically to the information herein; these changes will be incorporated in new editions of this publication. OneAccess may make improvements and/or changes in the product(s) described in this publication at any time, without prior notice.

Safety requirements

Carefully read the safety instructions, installation precautions and connection precautions as stated in chapter 2 - Installing and connecting the Crocus SHDSL G703 on page 13.

Subject Crocus SHDSL G703

Manual type User and reference manual

Version 1.8

Code 500871

Modification date 13 November 2007 ©OneAccess


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Statements

www.oneaccess-net.com/telindus → Products → choose a product → Downloads → Certificates

Hereby, OneAccess declares that this Crocus SHDSL G703 complies with the essential requirements and other relevant provisions of Directive 1999/5/EC.

Hierbij verklaart OneAccess dat deze Crocus SHDSL G703 overeenstemt met de essentiële vereisten en andere relevante bepalingen van Richtlijn 1999/5/EC.

Par la présente, OneAccess déclare que ce Crocus SHDSL G703 est en conformité avec les exigences essentielles et autres articles applicables de la Directive 1999/5/EC.

Hiermit, OneAccess erklärt daß dieser Crocus SHDSL G703 in Fügsamkeit ist mit den wesentlichen Anforderungen und anderen relevanten Bereitstellungen von Direktive 1999/5/EC.

Mediante la presente, OneAccess declara que el Crocus SHDSL G703 cumple con los requisitos esen-ciales y las demás prescripciones relevantes de la Directiva 1999/5/CE.

A OneAccess declara que o Crocus SHDSL G703 cumpre os principais requisitos e outras disposições da Directiva 1999/5/EC.

Col presente, OneAccess dichiara che questo Crocus SHDSL G703 è in acquiescenza coi requisiti essenziali e stipulazioni attinenti ed altre di Direttivo 1999/5/EC.

Με το παρόν η OneAccess δηλώνει ότι το Crocus SHDSL G703 είναι συµµορφούµενο µε τις βασικές απαιτήσεις και µε τις υπόλοιπες σχετικές διατάξες της οδηγίας 1999/5/EC.

http://www.telindusproducts.com

http://www.telindusproducts.com


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Environmental information

The crossed-out wheeled bin means that within the European Union the product must be taken to separate collection at the product end of life. This applies to the device but also to any accessories marked with this symbol. Do not dispose of these products as unsorted municipal waste.If you need more information on the collection, reuse and recycling systems, please contact your local waste administration. You can also contact us for more information on the environmental specifications of our products.

De doorgestreepte container wil zeggen dat binnen de Europese gemeenschap het product voor gescheiden afvalverzameling moet worden aangeboden aan het einde van de levensduur van het product. Dit geldt voor het toestel, maar ook voor alle toebehoren dia van dit symbool voorzien zijn. Bied deze producten niet aan bij het gewone huisvuil.Indien u meer informatie wenst over de systemen voor inzameling, hergebruik en recyclage, gelieve dan uw lokale afvaldiensten te contacteren. U kan ook ons contacteren wanneer u informatie wenst over de milieu aspecten van onze producten.

Le symbole de la poubelle sur roues barrée d’une croix signifie que ce produit doit faire l’objet d’une collecte sélective en fin de vie au sein de l’Union Européenne. Cette mesure s’applique non seulement à vorte appareil mais également à tout autre accessoire marqué de ce symbole. Ne jetez pas ces produits dans les ordures ménagères non sujettes au tri sélectif.Si vous souhaitez plus d'information concernant les systèmes de collecte, de réutilisation et de recyclage, veuillez contactez votre service de gestion de déchets local. Vous pouvez également nous contacter pour obtenir plus d’information au sujet des spécifications environnementales de nos produits.

Das Symbol der durchgestrichenen Abfalltonne auf Rädern bedeutet dass das Produkt in der Europäischen Union einer getrennten Mülsammlung zugeführt werden muss. Dies gilt sowohl für das Produkt selbst, als auch für alle mit diesem Symbol gekennzeichneten Zubehörteile. Diese Produkte dürfen nicht über den unsortierten Hausmüll entsorgt werden.Wenn Sie mehr Informationen brauchen über die Sammlung und Recycling Systemen, bitte konsultieren Sie Ihre örtliche Abfälle Verwaltung. Für mehr Informationen über die Umweltaspekten unserer Produkte, wenden Sie sich an unserer Kundendienst.

Crocus SHDSL G703 Preface

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Documentation set

The documentation set of the Crocus SHDSL G703 currently consists of the following:

Organisation of this manual

This manual contains the following main parts:

Refer to the Table of contents on page x for a detailed overview of this manual.

Document Description

Crocus SHDSL G703 manual (this manual)

This is the manual you are reading now.

It shows you how to install and connect the Crocus SHDSL G703 and gives you a basic configuration. It also contains a complete descrip-tion of all the configuration, status, performance and alarm parame-ters for look-up purposes.

maintenance and manage-ment application manuals

The Crocus SHDSL G703 can be maintained and managed by a vari-ety of maintenance and management tools. Refer to 1.5 - Mainte-nance and management tools on page 9 for an introduction on these tools and for a reference to the manual of these tools.

cable documents A wide variety of cables exist to connect the Crocus SHDSL G703. The Data cables document (PDF) and the Management cables doc-ument (PDF) describe these cables.

Part This part …

User manual shows you how to install and connect the Crocus SHDSL G703. It also gives a basic configuration of the Crocus SHDSL G703.

Reference manual gives more detailed information on the Crocus SHDSL G703, such as software download procedures, technical specifications, etc. It also contains a complete description of all the configuration, status, performance and alarm parameters for look-up purposes.

Annex gives additional information, such as product sales codes.


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Typographical conventions

The following typographical conventions are used in this manual:

The format … indicates …

Normal normal text.

Italic • new or emphasised words• application windows, buttons and fields. E.g. In the File name field enter …

Computer text you have to enter at the DOS or CLI prompt, computer output and code examples.

E.g. NOK,1,1,Invalid command.

Computer Bold text you have to enter at the DOS or CLI prompt when it is part of a mix of com-puter input and output.

E.g.

/o1003:"Edit Configuration">get sysName sysName = "Orchid 1003 LAN"/o1003:"Edit Configuration">

Narrow containment tree objects and attributes of a device when they are mentioned in the normal text. I.e. when they are not a part of computer input or output.

E.g. Use the sysName attribute in order to …

<Narrow> containment tree objects or attributes or part of them that are variable. I.e. depending on the product version, used interface, etc. the names of these objects or attributes are slightly different.

E.g. topObject/<modularIf>/someAttribute means that the name of the object <modularIf> depends on which modular interface you use. For example, v35 in case of a V.35 interface, g703 in case of a G.703 interface, etc.

Blue references to other parts in the manual.

E.g. “Refer to xx - Title for more information”.

Blue underline • a hyperlink to a web site. E.g. www.oneaccess-net.com• a reference to another manual. E.g. “Refer to the TMA manual (PDF) for

more information”. The abbreviation between brackets is an indication of the file format (PDF = Portable Document Format / CHM = Compiled HTML Help).

http://www.telindus.com


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Graphical conventions

The following icons are used in this manual:

Icon Name This icon indicates …

Remark remarks or useful tips.

Caution text to be read carefully in order to avoid damage to the device.

Warning text to be read carefully in order to avoid injury.

DIP switch a DIP switch or strap table.

Basic attribute a basic attribute in the containment tree of the Crocus SHDSL G703.

Advanced attribute an advanced attribute in the containment tree of the Crocus SHDSL G703.

Structured attribute a structured attribute within another attribute in the containment tree of the Crocus SHDSL G703.

Action an action in the containment tree of the Crocus SHDSL G703.


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Reading a DIP switch table

At several places in this manual DIP switch tables are shown. To enable you to read such a table in a correct manner it is explained below.

A DIP switch table has the following layout:

The following table explains the DIP switch configuration table layout:

Reading an attribute string

At several places in this manual attribute strings are shown. To enable you to read such a string in a correct manner it is explained below.

An attribute string has the following layout:

The following table explains the attribute string layout:

Number This position displays …

1 the DIP switch icon.

2 the DIP switch name

Example:

Load default configuration

3 the DIP switch position on the DIP switch bank.

The abbreviations mean the following:

DS1 no. 1: DIP switch bank number 1, switch position number 1

4 the possible settings of the DIP switch: on and off. The default setting is printed in bold.

5 the function associated with the corresponding DIP switch setting.

Number This position displays …

1 the attribute icon. It indicates that the string which follows is an attribute string. Refer to Graphical conventions on page vii for more information.

2 the attribute name and its position in the containment tree.

3 the default value of a configuration attribute.


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Hardware version

This manual describes the hardware of the Crocus SHDSL G703 PCB version 2.0 and higher.

Application software version

This manual describes the features, containment tree and attributes of the Crocus SHDSL G703 appli-cation software version T2148/00500.

Audience

This manual is intended for computer-literate people, who have a working knowledge of computing and networking principles.

Your feedback

Your satisfaction about this purchase is an extremely important priority to all of us at OneAccess. Accord-ingly, all electronic, functional and cosmetic aspects of this new unit have been carefully and thoroughly tested and inspected. If any fault is found with this unit or should you have any other quality-related com-ment concerning this delivery, please submit the Quality Comment Form on our web page atwww.oneaccess-net.com/telindus → Support.

Rating plate

For exact identification, you will find the model designation and serial number on the rating plate on the bottom of the housing. Please note this information here before installation in order to have it to hand in the event of queries or spare parts orders.

http://www.telindusproducts.com/quality

Crocus SHDSL G703 Table of contents

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Table of contents

User manual............................................................................................ 1

1 Introducing the Crocus SHDSL G703 ................................................................31.1 Crocus SHDSL G703 features ................................................................................... 41.2 Crocus SHDSL G703 product overview ..................................................................... 51.3 Identifying the Crocus SHDSL G703 non-RP and RP version ................................... 71.4 Power back-off ........................................................................................................... 81.5 Maintenance and management tools ......................................................................... 91.6 Maintenance and management tools connection possibilities ................................. 11

2 Installing and connecting the Crocus SHDSL G703.......................................132.1 Safety instructions .................................................................................................... 142.2 Unpacking ................................................................................................................ 152.3 Selecting a site ......................................................................................................... 162.4 Wall mounting........................................................................................................... 172.5 Installation and connection precautions ................................................................... 192.6 Connecting the Crocus SHDSL G703 Table Top..................................................... 202.7 Remote power operation .......................................................................................... 252.8 Using a repeater....................................................................................................... 292.9 Front panel LED indicators....................................................................................... 30

3 DIP switches and straps of the Crocus SHDSL G703 ....................................333.1 DIP switches and straps........................................................................................... 34

4 Maintaining the Crocus SHDSL G703 ..............................................................414.1 Starting TMA on the Crocus SHDSL G703 .............................................................. 424.2 Introducing the management attributes of the Crocus SHDSL G703....................... 47

5 Step-by-step configuration ...............................................................................535.1 Configuring the basic line parameters...................................................................... 545.2 Configuring EOC handling........................................................................................ 575.3 Configuring the timing mode .................................................................................... 645.4 Clocking of Crocus devices to access PDH and SDH networks .............................. 655.5 Configuring the clocking mode ................................................................................. 825.6 Configuring the minimum line speed ........................................................................ 875.7 Configuring framing and time slots........................................................................... 935.8 Low speed limitations on the G703 interfaces.......................................................... 975.9 Configuring the interface specific attributes ............................................................. 985.10 Configuring the management attributes ................................................................... 995.11 Configuring passwords........................................................................................... 1115.12 Executing configuration actions.............................................................................. 1135.13 Troubleshooting the Crocus SHDSL G703 ............................................................ 1185.14 Crocus SHDSL G703 compatibility with other SHDSL devices.............................. 119



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Reference manual .............................................................................. 121

6 Configuration attributes..................................................................................1236.1 Configuration attribute overview............................................................................. 1246.2 General configuration attributes ............................................................................. 1266.3 Line configuration attributes ................................................................................... 1316.4 Line pair configuration attributes ............................................................................ 1456.5 Repeater and end configuration attributes ............................................................. 1476.6 DTE Interface configuration attributes.................................................................... 1486.7 Management configuration attributes ..................................................................... 151

7 Status attributes ..............................................................................................1557.1 Status attribute overview ........................................................................................ 1567.2 General status attributes ........................................................................................ 1597.3 Line status attributes .............................................................................................. 1637.4 Line pair status attributes ....................................................................................... 1727.5 Repeater and end status attributes ........................................................................ 1757.6 DTE Interface status attributes............................................................................... 1807.7 Operating system status attributes......................................................................... 184

8 Performance attributes ...................................................................................1878.1 Performance attribute overview.............................................................................. 1888.2 Introducing the performance attributes................................................................... 1908.3 Line performance attributes.................................................................................... 1938.4 Line pair performance attributes............................................................................. 1968.5 Repeater and end performance attributes.............................................................. 1998.6 G703 interface performance attributes................................................................... 2008.7 Operating system performance attributes .............................................................. 204

9 Alarm attributes ...............................................................................................2079.1 Alarm attribute overview......................................................................................... 2089.2 Introducing the alarm attributes.............................................................................. 2109.3 General alarms....................................................................................................... 2189.4 Line alarms............................................................................................................. 2219.5 Line pair alarms...................................................................................................... 2239.6 Repeater and end alarms....................................................................................... 2269.7 Interface alarms...................................................................................................... 229

10 TMA subsystem picture of the Crocus SHDSL G703 ...................................23110.1 Displaying the subsystem picture........................................................................... 23210.2 Subsystem picture elements .................................................................................. 233

11 Software download..........................................................................................23511.1 What is boot, loader and application software?...................................................... 23611.2 Important download issues..................................................................................... 24011.3 Downloading with TMA........................................................................................... 24111.4 Downloading with TML ........................................................................................... 24211.5 Downloading in loader mode.................................................................................. 243



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12 Diagnostic tests ...............................................................................................24512.1 Introducing the diagnostic tests.............................................................................. 24612.2 Line tests ................................................................................................................ 24712.3 Interface tests......................................................................................................... 255

13 Technical specifications .................................................................................25713.1 Crocus SHDSL G703 types.................................................................................... 25813.2 Line specifications .................................................................................................. 25913.3 RJ45 - RJ12 adapter specifications........................................................................ 26113.4 Maximum covered distance on a noise free line .................................................... 26213.5 G703 interface specifications ................................................................................. 26313.6 Management interface connectors ......................................................................... 26413.7 Control connector ................................................................................................... 26513.8 Diagnostic tests ...................................................................................................... 26613.9 Power requirements ............................................................................................... 26713.10Thermal behaviour when providing remote power ................................................. 26813.11Environmental compliance ..................................................................................... 26913.12Safety compliance .................................................................................................. 27013.13Over-voltage and over-current protection compliance ........................................... 27013.14EMC compliance .................................................................................................... 27013.15Mechanical dimensions .......................................................................................... 270

Annex .................................................................................................. 271

Annex A:product information ...............................................................................273

Annex B:abbreviations ..........................................................................................279

Index........................................................................................................ 1

Crocus SHDSL G703

User manual

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User manual

Crocus SHDSL G703

User manual

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Crocus SHDSL G703 Chapter 1

User manual Introducing the Crocus SHDSL G703

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1 Introducing the Crocus SHDSL G703

This chapter introduces the Crocus SHDSL G703. The following gives an overview of this chapter:

• 1.1 - Crocus SHDSL G703 features on page 4• 1.2 - Crocus SHDSL G703 product overview on page 5• 1.3 - Identifying the Crocus SHDSL G703 non-RP and RP version on page 7• 1.4 - Power back-off on page 8• 1.5 - Maintenance and management tools on page 9• 1.6 - Maintenance and management tools connection possibilities on page 11



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1.1 Crocus SHDSL G703 features

The Crocus SHDSL G.703 (Symmetric High Bit Rate Digital Subscriber Line) is a manageable baseband modem offering full 2,3 Mbps duplex transmission over unconditioned unshielded twisted-pair cable.

A dedicated 2-pair version offers the possibility to extend the reach to longer distances or higher speeds (up to 4.6 Mbps). For extreme long distances, the equipment can fall back to a lower transmission rate, offering reduced speeds on the Fractional E1 (FE1) operation. The equipment is based on the TC-PAM (Trellis Coded Pulse Amplitude Modulation) modulation, which guarantees higher speeds and longer loop performance. It also guarantees spectral compatibility with legacy and ADSL transmission systems in the same cable bundle. The unit can be used in a point-to-point configuration, or can be used with a central solution based on card-nest 4 (CN4) or the OneAccess 2300. The Crocus SHDSL G.703 is avail-able as a locally or remotely powered (RP) unit. The remotely powered unit can also be locally powered at -48VDC directly or by 230Vac through an external power adapter. The unit is designed for integration into demanding network environments and can be controlled by the complete set of network mainte-nance and management tools.



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1.2 Crocus SHDSL G703 product overview

The following Crocus SHDSL G703 product versions exist:

The following table gives a description of the used abbreviations:

Crocus SHDSL product Manual

• Crocus SHDSL BU• Crocus SHDSL 2P BU• Crocus SHDSL LCD BU• Crocus SHDSL 2P LCD BU

These versions are described in the Crocus SHDSL manual.

• Crocus SHDSL TT G703• Crocus SHDSL 2P TT G703• Crocus SHDSL TT G703 RP• Crocus SHDSL 2P TT G703 RP

These versions are described in the manual Cro-cus SHDSL G703.

• Crocus SHDSL INF G703 1P TT Vac• Crocus SHDSL INF G703 1P TT NPWR• Crocus SHDSL INF G703 1P TT RP• Crocus SHDSL INF G703 2P TT Vac• Crocus SHDSL INF G703 2P TT NPWR• Crocus SHDSL INF G703 2P TT RP•

These versions are described in the manual Cro-cus SHDSL INF TT G703.

• Crocus SHDSL TT RS530• Crocus SHDSL 2P TT RS530• Crocus SHDSL TT RS530 RP• Crocus SHDSL 2P TT RS530 RP

These versions are described in the manual Cro-cus SHDSL RS530.

• OneAccess 2300 SHDSL Series These versions are described in the manual OneAccess 2300 SHDSL Series.

• Crocus SHDSL 2P G703 CV TWIN-CN7 RP unframed

• Crocus SHDSL 2P G703 NX64K TWIN-CN7 RP

• Crocus SHDSL 2P G703 NX64K TWIN-CN7• Crocus SHDSL G703 NX64K TWIN-CN7 RP• Crocus SHDSL G703 NX64K TWIN-CN7

These versions are described in the Crocus SHDSL CN7 manual.

Abbreviation In full Explanation

1P 1 pair This version has 1 line pair.

2P 2 pair This version has 2 line pairs.

4P 4 pair This version has 4 line pairs.

BU Basic Unit This is the Crocus SHDSL basic unit.



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TT Table Top This version is a stand-alone version of the Crocus SHDSL G703. It is available with or without an LCD display and keyboard.

CV Card Version This version is a card that has to be inserted into the CN4 card nest. The connections (power and line) are made through the CN4 card nest.

CV Twin Card Version Twin This version is a card that has to be inserted into the CN4 card nest. It incorporates two Crocus SHDSL G703 modems on one card (hence the name Twin). As a result, one CN4 card nest can contain up to 30 modems. The connections (power and line) are made through the CN4 card nest.

Vac Volts - Alternate Current This version has to be powered with 115 or 230 Vac.

-48Vdc -48 Volts - Direct Current This version has to be powered with -48 Vdc.

RP Remote Power This version can be powered with remote power (i.e. power coming from the central side, over the line).

G703 G703 interface This version has a fixed G.703 DTE interface instead of an empty interface slot in which you can insert a modular interface.

RS530 RS530 interface This version has a fixed RS530 DTE interface.

CN7 Card Nest 7 This version is a card that has to be inserted into the CN7 card nest. The connections (power and line) are made through the CN7 card nest.

Abbreviation In full Explanation



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1.3 Identifying the Crocus SHDSL G703 non-RP and RP version

This manual describes both the Crocus SHDSL G703 and Crocus SHDSL G703 RP version. The front panel of the Crocus SHDSL G703 (i.e. the non-RP version) and the Crocus SHDSL G703 RP are the same. However, you can identify them by looking at the back panel:

For a view of the back panels of both Crocus SHDSL G703 versions, refer to 2.6 - Connecting the Crocus SHDSL G703 Table Top on page 20.

The Crocus SHDSL G703 (i.e. the non-RP version) can not be powered by remote power. Only use the Crocus SHDSL G703 RP version in a remote power setup.

Version Back panel

Crocus SHDSL G703 • 12 Vdc power connector• RJ45/BNC

Crocus SHDSL G703 RP • 12 Vdc power connector• 48 Vdc power connector• RJ45/BNC



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1.4 Power back-off

The Crocus SHDSL G703 features power back-off. Power back-off is a part of the ITU-T G.991.2 SHDSL recommendation. It reduces the maximum transmit power level if the line conditions are sufficiently good to operate at a lower transmit level.

Power back-off is performed by default (no configuration attribute). During the ITU-T G.994.1 hand-shake, the two sides of the line mutually agree on the transmit level. The transmit level is lowered between 0 and 6 dB in steps of 1dB.

Important remark

When 2 devices are connected point to point using the lowest speeds, an attenuation is always needed to get into data state, despite the power back-off mechanism. Connecting the devices with a cable of 1 meter for instance will not work. For the lowest speeds, a minimum distance of 2 kilometers (simulated or not) is required between the devices.



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1.5 Maintenance and management tools

The Crocus SHDSL G703 is manageable in many different ways. This section gives a quick overview of the various maintenance and management tools.

Maintenance or management tool

Description and reference

TMA TMA (Total Maintenance Application) is a free Windows software package with a comprehensive graphical user interface that enables you to control the OneAccess products completely. I.e. to access their configuration attributes and look at status, performance and alarm information.

Refer to 4 - Maintaining the Crocus SHDSL G703 on page 41 and the TMA manual (PDF) for more information.

TMA CLI TMA CLI (TMA Command Line Interface) enables you to use its commands in scripts in order to automate management actions. This is particularly useful in large networks.

Refer to the TMA CLI manual (PDF) for more information.

ATWIN ATWIN is a menu-driven user interface. You can read and change all attributes as with TMA, but in a more basic, textual representation using a VT100 terminal.

Refer to the Maintenance tools manual (PDF) for more information.

CLI CLI is also a Command Line Interface, although not so extensive as TMA CLI. Experienced users who are familiar with the syntax can access the OneAccess devices more quickly than with TMA or ATWIN.


TMA Element Management

TMA Element Management is a management application designed to monitor large numbers of OneAccess devices. It combines the easy to use graphical inter-face of the stand-alone version of TMA with an event-logging application called the Element Viewer.

Refer to the TMA Element Management manual (PDF/CHM) for more information.

TMA for HP OpenView

TMA for HP OpenView is the management application that runs on the widely spread network management platform HP OpenView. It combines the easy to use graphical interface of the stand-alone version of TMA with the advantages and fea-tures of HP OpenView.

Refer to the TMA for HP OpenView manual (PDF) for more information.



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SNMP You can manage the Crocus SHDSL G703 through SNMP using any SNMP browser. The Crocus SHDSL G703 supports MIB2 and a private MIB, including traps.

The private MIB comes with your copy of TMA. After installation of the TMA data files, the private MIB file is available in directory C:\Program Files\TMA\snmp1 with the name <filename>.mib2.

Refer to the documentation of your SNMP browser for more information.

Web Interface The Web Interface is an ATWIN alike menu-driven user interface. You can read and change all attributes as with TMA, but in a more basic representation using a web browser.


Easy Configura-tor

The Easy Configurator allows you to add HTML pages on top of the standard Web Interface by adding a set of specific files on the file system of the Crocus SHDSL G703. These files can be made either by OneAccess or by the customer itself.

The goal is to offer a simple, custom made web interface which allows only to change or show those parameters that are relevant for a certain application or cus-tomer.


1. The first part of the directory path may be different if you did not choose the default path during the installation of the TMA data files.

2. The filename is product dependent. To determine which MIB file corresponds with which prod-uct, refer to the models.nms file (located in C:\Program Files\TMA\model1).

Maintenance or management tool

Description and reference



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1.6 Maintenance and management tools connection possibilities

The following table gives an overview of all the maintenance and management tools and how you can connect them with the Crocus SHDSL G703:

Maintenance or manage-ment tool

Tool - Crocus SHDSL G703 connection

Tool - management concentra-tor connection1

1. Examples of management concentrators are the Orchid 1003 LAN, the OneAccess 1030 Router series, the OneAccess 2300 SHDSL series, etc. Refer to their corresponding manuals for more information on how to set these devices up as management proxy.

Serial2

2. A serial connection is a connection between the COM port of your PC and the control connec-tor of the device using a male-female DB9 cable.

IP3

3. An IP connection is a connection between your PC and the device over an IP network.

Serial2 IP3

Keyboard4

4. Connection with the Crocus SHDSL G703 is internal. Keyboard and LCD are not available on all models.

CLI X5

5. Using a VT100 terminal (emulation program).

X5 X6

6. Using Telnet.

ATWIN X5 X5 X6

TMA X X X

TMA CLI X X X

TMA Element Management X

TMA for HP OpenView X

SNMP7

7. Using an SNMP browser.

X

Web Interface8

8. Using a web browser.

X

Easy Configurator X9

9. The proper XML files must be present on the file system of the management concentrator.



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User manual Installing and connecting the Crocus SHDSL G703

13

2 Installing and connecting the Crocus SHDSL G703

First this chapter gives some important safety instructions. Then it explains how to install and connect the Crocus SHDSL G703.

You are advised to read this chapter in a sequential manner, from the beginning to the end, without skip-ping any part. By doing so, your Crocus SHDSL G703 will be completely installed and ready for config-uration when you reach the end of this chapter.

The following gives an overview of this chapter:

• 2.1 - Safety instructions on page 14• 2.2 - Unpacking on page 15• 2.3 - Selecting a site on page 16• 2.4 - Wall mounting on page 17• 2.5 - Installation and connection precautions on page 19• 2.6 - Connecting the Crocus SHDSL G703 Table Top on page 20• 2.7 - Remote power operation on page 25• 2.8 - Using a repeater on page 29• 2.9 - Front panel LED indicators on page 30



14

2.1 Safety instructions

IMPORTANT SAFETY INSTRUCTIONS

Unplug the unit from the wall power outlet or remove it from the card nest before installing, adjusting or servicing.The safety of this unit depends upon the third pin (ground pin) of the 3-wire grounding type plug. Do not defeat this safety feature. If the power outlet at your site only has 2 pins, please consult a qualified elec-trician.

WICHTIGE SICHERHEITSINSTRUKTIONEN

Vor sämtlichen Arbeiten am Gerät (Installation, Einstellungen, Reparaturen etc.) sollten Sie den Netzstecker aus der Steckdose ziehen.Die Sicherheit dieses Gerätes ist abhängig von dem dritten Kontakt (dem Erdungspin) des 3-poligen Steckers. Beachten Sie unbedingt diese Sicherheitsstandard. Sollten Sie nur eine ältere 2-polige Steck-dose zur Verfügung haben, lassen Sie diese von einem Elektriker gegen eine 3-polige Steckdose auswechseln.

SAFETY WARNING

To avoid damage to the unit, please observe all procedures described in this chapter.

SICHERHEITSBESTIMMUNGEN

Um eine Beschädigung des Gerätes zu verhindern, beachten Sie bitte unbedingt die Sicherheitsbestim-mungen, die in diesem Abschnitt beschrieben werden.

Ensure that the unit and its connected equipment all use the same AC power and ground, to reduce noise interference and possible safety hazards caused by differences in ground or earth potentials.



15

2.2 Unpacking

Checking the shipping carton

Rough handling during shipping causes most early failures. Before installation, check the shipping car-ton for signs of damage:

• If the shipping carton is damaged, please place a claim with the carrier company immediately.• If the shipping carton is undamaged, do not dispose of it in case you need to store the unit or ship it

in the future.

Package contents

The box should contain the following items:

• Crocus SHDSL G703• TMA CD-ROM including the TMA software and appropriate model files and the User and Reference

manual in PDF format.• RJ45 to RJ12 adapter

Optionally (depending which sales item you ordered):

• 12 Vdc power connector and external power adapter• 48 Vdc power connector



16

2.3 Selecting a site

WARNING

Always place the unit on its feet without blocking the air vents.Do not stack multiple units directly onto each other, as stacking can cause heat build-up that could dam-age the equipment.

ACHTUNG

Stellen Sie das Gerät niemals seitlich, sondern nur auf den Füßen auf und achten Sie darauf, daß die Lüftungsschlitze an der Seitenverkleidung frei bleiben.Stapeln Sie nicht mehrere Geräte direkt übereinander, dies kann zu einem Hitzestau führen.

Install the unit in an area free of extreme temperatures, humidity, shock and vibration. Position it so that you can easily see and access the front panel and its control indicators. Leave enough clearance at the back for cables and wires. Position the unit within the correct distances for the different accesses and within 2m of a power outlet.



17

2.4 Wall mounting

The Crocus SHDSL G703 TT can be mounted on a wall. Proceed as follows:

Step Action

1 Drill two holes in the wall, according to the following specifications:·

• diameter of the drill: 4 mm• distance between the holes: 120 mm• depth of the holes: at least 25 mm

2 Insert two wall plugs in the holes, with following specifications:·

• diameter: 4 mm·• length: 20 mm

3 Screw two square hooks (steel zinc plated and white epox) in the plugs, with following dimensions:

4 Slide the Crocus SHDSL G703 over the hooks until it touches the wall. This is indicated with in the figure below.

5 Slide the Crocus SHDSL G703 down until it is firmly attached. This is indicated with in the following figure.

a

b



18

The following figure illustrates how to mount the Crocus SHDSL G703 against the wall:



19

2.5 Installation and connection precautions

ESD WARNING

The circuit boards are sensitive to electrostatic discharges (ESD) and should be handled with care. It is advisable to ensure an optimal electrical contact between yourself, the working area and a safety ground before touching any circuit board. Take special care not to touch any component or connector on the circuit board.

EMC WARNING

The complete Crocus family and the CN4 card nest are fully EMC compliant. Because of the modular structure of the CN4 card nest, all unused slots (power slots, card slots and interface slots) have to be covered with the appropriate blanking modules at installation time.To ensure compliance with EMC directive 89/336/EEC, shielded cables or ferrite beads have to be used.

NOTE

This unit may be powered by an IT Power System.

The connectors of the Crocus SHDSL G703 should only be connected to the following circuit types:

• SELV (Safety Extra Low Voltage): local connection (e.g. PC to Crocus SHDSL G703) or leased line inside the building.

• TNV-1 (Telecom Network Voltage): leased line outside the building.• TNV-2: PSTN from PABX inside the building.• TNV-3: PSTN from operator PABX outside the building.

Connector name Connector label Connector type Circuit type

line line RJ45 TNV-11

TNV-32

1. Without Remote Power2. With Remote Power

management CTRL subD SELV

G703 interface - RJ45/BNC SELV



20

2.6 Connecting the Crocus SHDSL G703 Table Top

This section explains how to connect the Crocus SHDSL G703 TT. The following gives an overview of this section:

• 2.6.1 - Table Top connections on page 21• 2.6.2 - Connecting the power supply to the Table Top on page 22• 2.6.3 - Signal and protective ground interconnection on page 23• 2.6.4 - Connecting the line to the Table Top on page 24



21

2.6.1 Table Top connections

All the connections have to be made at the back of the Table Top.

Crocus SHDSL G703 (non-RP version)

Crocus SHDSL G703 RP

The following table labels the different parts located at the back of the Crocus SHDSL G703:

Label Part

12VDC48VDC

power inlet (12 Vdc / 48 Vdc)

G703 BNC / RJ45 interface connectors

CTRL SUBD9 control connector

LINE RJ45 line connector



22

2.6.2 Connecting the power supply to the Table Top

The following table explains how to connect the power supply. The TT exists in two different models:

TT model Connector type Connecting the power supply

-48 Vdc 48 V power sup-ply connector

For a -48 Vdc model, a power supply connector is delivered with the Crocus SHDSL G703.The + and - indications are with respect to each other, not to ground level. This means that for a standard -48 Vdc connection, the ground has to be con-nected to +, while the negative voltage has to be connected to the -.When the -48 Vdc power supply connector is wired, con-nect it to the power inlet. Refer to Crocus SHDSL G703 RP on page 21.

12 Vdc 12 V power sup-ply connector

Insert the plug of the 12 Vdc power adapter in the 12 Vdc power inlet.



23

2.6.3 Signal and protective ground interconnection

You can configure the interconnection between signal ground and protective ground (earth). Do this by means of the appropriate strap located on the TT motherboard. For more information, refer to 3.1.3 - Straps of the TT on page 37.



24

2.6.4 Connecting the line to the Table Top

In order to connect the line to the Table Top, proceed as follows:

For optimum performance, the used line pairs have to be properly twisted pairs.

Step Action

1 If you have a line cable with an …

• RJ45 connector, you can immediately plug one end of the cable in the line connector of the Crocus SHDSL G703.

• RJ12 connector, then first plug in the RJ45 to RJ12 adapter in the line connector of the Crocus SHDSL G703. Then plug one end of the cable in the adapter.

For more information on the line connector and adapter layout, refer to 13.2 - Line spec-ifications on page 259 and 13.3 - RJ45 - RJ12 adapter specifications on page 261.

2 Plug the other end of the cable in the DSL outlet.



25

2.7 Remote power operation

This section gives an overview of the remote power functionalities and indicates how to activate them. The following gives an overview of the section.

• 2.7.1 - What is remote power (RP)? on page 26• 2.7.2 - Remote power operation overview on page 27• 2.7.3 - Remote power sink operation: how to remote power the Crocus SHDSL G703 RP? on page 28

Important remarks

• The Crocus SHDSL G703 and RS530 (i.e. the non-RP version) can not be powered by remote power. Only use the Crocus SHDSL G703 RP and RS530 RP version in a remote power setup.

• When using remote power, certain limitations apply with regards to the number of Card Versions that can be inserted in the CN4, CN4-4 and CN4-2 rack; refer to 13.10 - Thermal behaviour when provid-ing remote power on page 268. Not complying with these rules will result in irreversible damage to the device.



26

2.7.1 What is remote power (RP)?

Remote powering means that a local modem (RP source modem) supplies operational power over the line to a remote modem (RP sink modem). Remote powering is in accordance with the ITU-T recommen-dation K.15.

The RP sink modem typically is dual powered. This means that it is either powered by a local power sup-ply or by remote power over the line. If the local power supply fails, then the RP sink modem is still pow-ered over the line by the RP source modem. As soon as the local power supply is reactivated, the RP sink modem is powered again by this power supply.



27

2.7.2 Remote power operation overview

Some versions of the Crocus SHDSL family can work as remote power source, while others can only work as remote power sink. The following table gives an overview of the remote power functionality in the different Crocus SHDSL versions:

When using a TT device as remote power sink, no DIP switches or straps have to be adjusted in the device.

Version RP source RP sink

Crocus SHDSL CV X -

Crocus SHDSL TT - -

Crocus SHDSL G703 TT - -

Crocus SHDSL G703 TT RP - X

Crocus SHDSL RS530 TT - -

Crocus SHDSL RS530 TT RP - X

Crocus SHDSL xP CV CN7 RP X -

Crocus SHDSL Repeater - X



28

2.7.3 Remote power sink operation: how to remote power the Crocus SHDSL G703 RP?

The Crocus SHDSL G703 and RS530 (i.e. the non-RP version) can not be powered by remote power. Only use the Crocus SHDSL G703 RP and RS530 RP version in a remote power setup.

The Crocus SHDSL G703 RP can be remotely powered in the following ways:

A central CN4 with a Remote Power option board on a Crocus SHDSL CV Quad DXC / Crocus SHDSL CV.

For more information on how to set up remote powering in the configuration as depicted above, refer to the Crocus SHDSL CV Quad DXC manual. In this manual it is described how a Crocus SHDSL CV Quad DXC has to be configured for remote powering.

A central OneAccess 2321 or 2323 with a Remote Power option board.

For more information on how to set up remote powering in the configuration as depicted above, refer to the OneAccess 2321/2323 manual. In this manual it is described how a OneAccess 2321/2323 has to be configured for remote powering.



29

2.8 Using a repeater

You can use the Crocus SHDSL Repeater to increase the maximum distance between two Crocus SHDSL modems.

There are however some issues to consider when using a repeater:

• The customer side (C-side) of the Crocus SHDSL Repeater always slaves on the network side (N-side). This means that the LTU or central modem has to generate a clock for the N-side of the Crocus SHDSL Repeater. Therefore the LTU or central modem can not be configured in slave-receive clock-ing.

• In case you have two Crocus SHDSL G703 2P (2 pair) versions, you can not use two Crocus SHDSL Repeater 1P (1 pair) version on each line pair. This does not work.

For more information on the Crocus SHDSL Repeater, refer to the Crocus SHDSL Repeater manual.

Maximum 8 Crocus SHDSL repeaters can be used on a link.



30

2.9 Front panel LED indicators

This section gives an overview of the front panel LEDs and what they indicate. The following gives an overview of this section.

• 2.9.1 - Introducing the front panel LEDs on page 31• 2.9.2 - Power LED (PWR, green) on page 32• 2.9.3 - Data carrier detect LED (DCD/109, green) on page 32• 2.9.4 - Serial LED (SERIAL, green) on page 32



31

2.9.1 Introducing the front panel LEDs

When all the connections are made and the Crocus SHDSL G703is powered, the LEDs on the front panel reflect the actual status of the Crocus SHDSL G703.

The figure below shows the front panel LED indicators of the Crocus SHDSL G703:

Front panel LED status modes

For some front panel LED indicators (TST, AIS ERR and DCD) different status modes exist. These sta-tus modes can be distinguished by the way the LED lights up:

LED status LED duty cycle Description

continuously off 0% The LED never lights up.

continuously on 100% The LED lights up continuously.

blinking 50% The LED is as much lit as it is out.

flashing 20% The LED only lights up during 20% of the time.

monitoring - The LED lights up irregularly. For instance, it lights up on detection of a certain signal. I.e. it monitors this signal.



32

2.9.2 Power LED (PWR, green)

This LED indicates the power state of the Crocus SHDSL G703:

2.9.3 Data carrier detect LED (DCD/109, green)

This LED indicates whether the central Crocus SHDSL G703 is in synchronisation with the remote SHDSL device. Three different modes can be distinguished:

In case of a Crocus SHDSL G7032P two DCD LEDs are present, one for each line pair.

2.9.4 Serial LED (SERIAL, green)

This LED indicates the state of the Crocus SHDSL G703 interface:

LED status Description

on The Crocus SHDSL G703 is powered locally.

flashing The Crocus SHDSL G703 is powered remotely.


off No signal is detected on the line.

blinking A training cycle between central and remote SHDSL device is in progress.

on The central and remote SHDSL devices are synchronised. A data link is present.


on The Crocus SHDSL G703 interface is up.

off The Crocus SHDSL G703 interface is down.


User manual DIP switches and straps of the Crocus SHDSL G703

33

3 DIP switches and straps of the Crocus SHDSL G703

This chapter locates the DIP switches and straps on the Crocus SHDSL G703 motherboard. It gives an overview of their function and it explains how to change their settings.

The following gives an overview of this chapter.

• 3.1 - DIP switches and straps on page 34

Default settings are printed in bold.



34

3.1 DIP switches and straps

This section locates the DIP switches and straps on the TT motherboard. It gives an overview of their function and it explains how to change their settings.

Disconnect the Crocus SHDSL G703 from the mains before you open the housing to change DIP switch and/or strap settings.


• 3.1.1 - The TTmotherboard on page 35• 3.1.2 - DIP switches of the TT on page 36• 3.1.3 - Straps of the TT on page 37• 3.1.4 - Changing DIP switch and strap settings of the TT on page 39

Default settings are printed in bold.



35

3.1.1 The TTmotherboard

The figure below shows the position of the DIP switches and straps on the TT motherboard.



36

3.1.2 DIP switches of the TT

The following table gives an overview of DIP switch bank DS1 of the TT:

For more information on …

• DIP switch and strap location on the TT motherboard, refer to 3.1.1 - The TTmotherboard on page 35.• changing DIP switch and strap settings on the TT, refer to 3.1.4 - Changing DIP switch and strap set-

tings of the TT on page 39.

DIP switch name DS1 no. Setting Function

loader mode 1 on Normal operation.

off Start up in loader mode.

load default configura-tion

2 on Normal operation.

off Load default configura-tion.



37

3.1.3 Straps of the TT

Strap ST1

Using strap ST1 you can configure the interconnection between signal ground and protective ground (earth):

Straps ST3, ST4 and ST5

Using straps ST3, ST4 and ST5 you can …

• select which connector you want to use: the RJ45 connector or the BNC connectors.• choose whether the shield of the TX-IN BNC connector is connected to the PGN or not.


• DIP switch and strap location on the Crocus SHDSL G703 motherboard, refer to 3.1.1 - The TTmoth-erboard on page 35.

ST1 strap posi-tion

Connection Description

1-2 disconnected (default)

By default, the signal ground is disconnected from the earth. This avoids problems which might occur when the earth poten-tial of the Crocus SHDSL G703 and the connected application is not the same. In such a situation earth current loops may induce distortion on the transmitted data, resulting in transmis-sion errors.

2-3 directly con-nected

Sometimes it is not possible to connect the application directly to the earth. In that case you can earth the application through the Crocus Crocus SHDSL G703 by connecting the Crocus SHDSL G703 to the earth and setting strap ST1.Also the oppo-site situation might occur: it is not possible to earth the Crocus SHDSL G703. In that case you can earth the Crocus SHDSL G703 through the application by connecting the application to the earth and setting strap ST1.

Function ST3 strap position ST4 strap position ST5 strap position

RJ45 (default) 2-3 2-3 2-3

BNC with TX-IN shield connected to PGND

1-2 1-2 1-2

BNC with TX-IN shield isolated from PGND (default)

1-2 1-2 2-3



38

• changing DIP switch and strap settings on the Crocus SHDSL G703, refer to 3.1.4 - Changing DIP switch and strap settings of the TT on page 39.



39

3.1.4 Changing DIP switch and strap settings of the TT

To change the DIP switch and/or strap settings of the Crocus SHDSL G703, proceed as follows:

Step Action

1 Switch the Crocus SHDSL G703 off.

2 Disconnect the Crocus SHDSL G703 from the mains.

3 Unscrew the two screws located at the back of the Crocus SHDSL G703.

4 Remove the cover as follows:

1. Carefully lift the back of the cover a few centimetres.2. Gently pull the cover backwards from under the nose of the Crocus SHDSL G703.

5 Change the DIP switch and/or strap settings.

6 Replace the cover and close tight.

7 Fasten the two screws located at the back of the Crocus SHDSL G703.

8 Reconnect the Crocus SHDSL G703 to the mains.

9 Switch the Crocus SHDSL G703 on.



40


User manual Maintaining the Crocus SHDSL G703

41

4 Maintaining the Crocus SHDSL G703

Once you installed the Crocus SHDSL G703, you can proceed with the configuration. You can do this using any of the management tools introduced in 1.6 - Maintenance and management tools connection possibilities on page 11.

This chapter briefly highlights two of those management tools: the Total Maintenance Application (TMA). It gives an introduction and describes how to start a management session on the Crocus SHDSL G703. Furthermore, it also introduces the terminology concerning the management of a OneAccess device.


• 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42• 4.2 - Introducing the management attributes of the Crocus SHDSL G703 on page 47



42

4.1 Starting TMA on the Crocus SHDSL G703

This section introduces the Total Maintenance Applications (TMA). Then it explains how you can start a TMA session on the Crocus SHDSL G703.

The following gives an overview of this section:

• 4.1.1 - Introducing TMA on page 43• 4.1.2 - Starting a TMA session through the control connector on page 44• 4.1.3 - Starting a TMA session through a management concentrator on page 46



43

4.1.1 Introducing TMA

What is the Total Maintenance Application?

TMA is a free Windows software package that enables you to maintain the Crocus SHDSL G703, i.e. to access its configuration attributes and look at status, performance and alarm information using a user friendly graphical user interface.

TMA is an excellent tool for complete management of the OneAccess access devices. When using TMA in combination with a network management system such as HP OpenView, complete networks can be managed from one central site.

Consult the TMA user manual to install it and get acquainted with the TMA user interface.

You will need a new version of the model file distribution if changes have been made to the attributes of the Crocus SHDSL G703. The most recent model files can always be downloaded from the OneAccess web site at www.oneaccess-net.com/telindus/downloads → Download Center.

How to connect TMA?

There are two ways to establish a connection between the computer running TMA and the Crocus SHDSL G703:

• over a serial connection, through the control connector of the Crocus SHDSL G703.• over an IP or a serial connection, through a management concentrator.



44

4.1.2 Starting a TMA session through the control connector

To establish a connection between the computer running TMA and the Crocus SHDSL G703 through the control connector, proceed as follows:

Step Action

1 Connect a serial port of your com-puter (e.g. COM1) through a straight DB9 male - female cable with the control connector of the Crocus modem.

2 Start TMA.

3 In the TMA window, either …

• select from the menu bar: Connect → Device…• or press the shortcut key: Ctrl+N• or press on the Connect to device button:

The Connect (to a device) window is being displayed as in the following figure:

4 In the Connect (to a device) window, configure the following parameters:

• Select the option Serial, and specify the COM port of your computer the Crocus SHDSL G703 is connected to.

• If a password has previously been configured in the Crocus SHDSL G703 then also fill in the password field.

5 If the necessary parameters are filled in, press the Next > button.



45

6 In the TMA window, either …

• select from the menu bar: Connect → Select device…

• or press the shortcut key: Ctrl+D• or press on the Select device button:

The Connect (select a device) window is being displayed as in the following figure:

7 In order to connect to …

• the local Crocus SHDSL G703, choose On device.• the remote Crocus SHDSL G703, choose After device and enter relative NMS

address 1 or higher.

If a password has previously been configured in the Crocus SHDSL G703 then also fill in the password field.

8 If the necessary parameters are filled in, press the Finish button.

9 After a couple of seconds, the attributes of the selected Crocus SHDSL G703 appear in the TMA window.

Step Action



46

4.1.3 Starting a TMA session through a management concentrator

On central locations with many access devices, the Crocus SHDSL G703 can be connected to a man-agement concentrator (e.g. Orchid 1003 LAN or 1035 Orchid). In this case the management concentra-tor is a proxy device for the Crocus SHDSL G703. This means you can connect TMA to the Crocus SHDSL G703 through the management concentrator.

What is more, the management concentrator can act as an IP proxy device for the Crocus SHDSL G703. The IP address related to the Crocus SHDSL G703 is defined in the management concentrator.

Refer to the manual of the management concentrator for more information on the configuration and man-agement capabilities of this device.



47

4.2 Introducing the management attributes of the Crocus SHDSL G703

This section gives an introduction to the management attributes of the Crocus SHDSL G703. It intro-duces terms such as containment tree, group, object, attribute, value and action.


• 4.2.1 - Containment tree terminology on page 48• 4.2.2 - The Crocus SHDSL G703 containment tree on page 50• 4.2.3 - Crocus SHDSL G703 attribute overview on page 51



48

4.2.1 Containment tree terminology

The following figure depicts the TMA window containing the Crocus SHDSL G703 containment tree.



49

The following table explains the terminology associated with the containment tree.

Term Description

contain-ment tree

The containment tree represents the hierarchical structure of the Crocus SHDSL G703. It is composed of a number of objects that are ordered in a tree. This tree resembles a Windows directory structure:

• it is also a levelled structure, with nodes which can be expanded or reduced• the containment tree objects can be compared with file folders• the objects contain attributes like file folders contain files.

object An object represents a physical interface, an application or a combination of both. Each object has its own set of attributes.

Example:

The top object crocusShdslTtRpG703 contains the sub object line. On its turn, the sub object line contains the sub object linePair [1]. This object contains all the attributes concerning the line pair. E.g. the status attribute lineAttenuation (dB).

attribute An attribute is a parameter related to a certain object. It has a certain value.

Example:

The object line contains the attribute channel, which has the values central and remote.

value An attribute has a certain value which is …

• changeable in case of a configuration attribute (provided you have write access)• read only in case of a status, performance and alarm attribute.

Example:

The configuration attribute channel can be set to the value central or remote.

structured value

Some attribute values contain underlying values: a structured value. These values are displayed in the structured value window. If an attribute contains structured values then a bit string, <Table> or <Struct> is displayed after the attribute.

Example:

The alarmLevel attribute contains a structured value which displays alarms and their cor-responding priority level.

group Groups assemble a set of attributes related by functionality. There are four groups in TMA, which correspond with the four tabs in the attribute window:

• configuration• status• performance• alarms.

action A group in combination with an object may have actions assigned to them. These actions are displayed in the action window.

Example:

The Cold Boot action only appears when the top object crocusShdslTtRpG703 is selected in combination with the group Configuration.



50

4.2.2 The Crocus SHDSL G703 containment tree

The following table lists the different objects of the Crocus SHDSL G703 containment tree.

Object This object contains …

> crocusShdslTtRpG703 the general system attributes. It is the top object in the containment tree.

E.g. the status attribute sysUpTime: 00005d 02h 53m 16s.

>> line the general line attributes.

E.g. the configuration attribute channel.

>>> linePair[ ] the specific line pair attributes.

E.g. the status attribute lineAttenuation (dB).

>> g703 the DTE interface attributes of the G703 interface.

E.g. the configuration attribute clocking.

>> management the network management attributes.

E.g. the configuration attribute consoleNoTrafficTimeOut.

>> operatingSystem the operating system attributes.

E.g. the performance attribute currUsedProcPower (%).

>> fileSystem the file system attributes.

E.g. the status attribute fileList



51

4.2.3 Crocus SHDSL G703 attribute overview

The reference part of this manual explains all the attributes of the Crocus SHDSL G703. One chapter describes one group of attributes:

• chapter 6 describes the configuration attributes• chapter 7 describes the status attributes• chapter 8 describes the performance attributes• chapter 9 describes the alarm attributes.



52


User manual Step-by-step configuration

53

5 Step-by-step configuration

This chapter describes in a step-by-step manner how to perform a basic configuration on Crocus SHDSL G703.

You are advised to read this chapter in a sequential manner, from the beginning to the end, without skip-ping any part. By doing so, your Crocus SHDSL G703 will be completely configured and ready for use when you reach the end of this chapter.


• 5.1 - Configuring the basic line parameters on page 54• 5.2 - Configuring EOC handling on page 57• 5.3 - Configuring the timing mode on page 64• 5.4 - Clocking of Crocus devices to access PDH and SDH networks on page 65• 5.5 - Configuring the clocking mode on page 82• 5.6 - Configuring the minimum line speed on page 87• 5.7 - Configuring framing and time slots on page 93• 5.8 - Low speed limitations on the G703 interfaces on page 97• 5.9 - Configuring the interface specific attributes on page 98• 5.10 - Configuring the management attributes on page 99• 5.11 - Configuring passwords on page 111• 5.12 - Executing configuration actions on page 113• 5.13 - Troubleshooting the Crocus SHDSL G703 on page 118• 5.14 - Crocus SHDSL G703 compatibility with other SHDSL devices on page 119

For a complete overview of the attributes of the Crocus SHDSL G703, refer to the reference manual.



54

5.1 Configuring the basic line parameters

crocusShdslTtRpG703/line/channel

The channel attribute defines which modem is the central and which the remote modem. I.e. it determines which modem acts as master and which as slave during the synchronisation procedure of the modem.

The default channel setting of a TT is remote, while that of a CV is central. Therefore there will never be a synchronisation problem when a CV and a TT are used in a regular set-up, the CV at the backbone side and the TT at the customer side.

• If two TTs are used at each end of the data link, make sure to change the channel attribute of one of the TTs into central.

• If two CVs are used at each end of the data link, make sure to change the channel attribute of one of the CVs into remote.

crocusShdslTtRpG703/line/region

The region attribute defines which S-HDSL standard is used:

For compatibility with other SHDSL devices, setting this attribute to the correct value might be essential. Refer to 5.14 - Crocus SHDSL G703 compatibility with other SHDSL devices on page 119.

Value Description

annexA The American S-HDSL standard is used.

annexB The European S-HDSL standard is used.

auto The S-HDSL standard is selected automatically.

Default: remote Range: remote / central

Default:annexBRange: enumerated, see below



55

crocusShdslTtRpG703/line/mode

This attribute is only present on the Crocus SHDSL G703 2P (2 pair) ver-sion. Use the mode attribute to select between single pair or dual pair operation.

When you change the mode attribute, then make sure that you use the correct speed attribute to set the user speed:

If the mode attribute is set to … then use the attribute …

singlePair, speed to configure the user speed.

dualPair, speed2P to configure the user speed.

Default:autoRange: singlePair, dualPair



56

crocusShdslTtRpG703/line/eocChannel

Use the eocChannel attribute to determine how the checksum of Embed-ded Operations Channel (EOC) messages is calculated. Make sure that on both the central and the remote device the eocChannel attribute is set to the same value.

The eocChannel attribute has the following values:

For compatibility with other SHDSL devices, setting this attribute to the correct value might be essential. Refer to 5.14 - Crocus SHDSL G703 compatibility with other SHDSL devices on page 119.

Value Description

proprietary The checksum is calculated using a proprietary method.

itu-G.991.2 The checksum is calculated using the G.SHDSL standard method.

Default:itu-G.991.2Range: itu-G.991.2 / proprietary



57

5.2 Configuring EOC handling

This section explains what EOC is. Then it explains how you can configure the handling of the EOC mes-sages. Finally, it discusses which information is retrieved depending on the setting of the eocHandling attribute.

The following gives an overview of this section.

• 5.2.1 - What is EOC? on page 58• 5.2.2 - The EOC handling attribute on page 59• 5.2.3 - Discovering devices on the SHDSL line on page 60• 5.2.4 - EOC retrieved information on page 60



58

5.2.1 What is EOC?

SHDSL devices can communicate with each other through the Embedded Operations Channel (EOC). For instance the Crocus SHDSL G703 can send the following types of EOC requests:

• inventory, to get information (manufacturer, release, etc.) about the remote SHDSL device,• enable / disable network loop-backs on the remote SHDSL device,• retrieve statistics or failure information (SNR Margin, loop attenuation, number of CRC errors, etc.).

The EOC messages are defined in G.991.2 to provide interoperability.



59

5.2.2 The EOC handling attribute

crocusShdslTtRpG703/line/eocHandling

Use the eocHandling attribute to define the handling of the EOC messages.

The eocHandling attribute has the following values:

Value Description

passive In this mode, the Crocus SHDSL G703 will never send any spontaneous standard EOC messages. It will only answer to standard EOC requests coming from the other side. Also, after getting into datastate, no OneAccess specific EOC data will be sent the first 2 minutes, unless the device has received a OneAccess specific frame from the other side (e.g. o10 data, or a test or configuration frame).

Use this value when the Crocus SHDSL G703 is connected to the 2300.

none The Crocus SHDSL G703 does not send any spontaneous EOC requests, except for discovery probes, they are still sent. The Crocus SHDSL G703 will also answer to EOC requests coming from other SHDSL devices.

discovery The Crocus SHDSL G703 "scans" the SHDSL line. For every device it discovers, it adds an object to the containment tree. Refer to 5.2.3 - Discovering devices on the SHDSL line on page 60.

Then the Crocus SHDSL G703 retrieves information from these devices and dis-plays it in the corresponding objects. Exactly which information is retrieved depends on the setting of the eocHandling attribute. Refer to 5.2.4 - EOC retrieved information on page 60.

inventory

info

alarmConfiguration Also in this case the Crocus SHDSL G703 "scans" the SHDSL line, adds the objects to the containment tree and retrieves information from the devices. Refer to 5.2.3 - Discovering devices on the SHDSL line on page 60 and 5.2.4 - EOC retrieved information on page 60.

Additionally, the central1 SHDSL device forces the remote2 SHDSL device and any intermediary repeater to use the link alarm thresholds lineAttenuation and signal-Noise as configured on the central device in the attribute line/linkAlarmThresholds. In other words, the settings of the lineAttenuation and signalNoise on the central device overrule those of the remote device and repeaters.

Refer to crocusShdslTtRpG703/line/linkAlarmThresholds on page 140 for more information.

1. The central device is the device on which the channel attribute is set to central.2. The remote device is the device on which the channel attribute is set to remote.

Default:noneRange: enumerated, see below



60

5.2.3 Discovering devices on the SHDSL line

When you change the eocHandling attribute from none to any other value, the Crocus SHDSL G703 starts "scanning" the SHDSL line in order to determine which devices are present between itself and its remote counterpart. When the scan is finished, some new objects are added to the containment tree on the same level as the line object:

• If one or more repeaters are present on the SHDSL line, a repeater[ ] object is added for every repeater. • For the remote counterpart, an end object is added.

The new objects are not added instantaneously. It can take up to 5 minutes before these objects appear in the containment tree.

For example, suppose you have a link with a Crocus SHDSL G703 as central device, a 1421 SHDSL Router as remote device and one Crocus SHDSL G703 Repeater in between. Suppose you set the eocHandling attribute to discovery. In that case the one repeater[ ] object and an end object is added to the containment tree as can be seen in the screenshot:

The first discovered repeater will have id 3, the second one will have id 4, etc.

5.2.4 EOC retrieved information

As said before, exactly which information is retrieved from the remote SHDSL device(s) through the EOC channel depends on the setting of the eocHandling attribute.

This section gives an overview in which case which information is retrieved:

• EOC status information, refer to EOC status information.• EOC performance information, refer to EOC performance information.• EOC alarm information, refer to EOC alarm information.



61

3.R

efer

to 5

.2.2

- Th

e E

OC

han

dlin

g at

tribu

te o

n pa

ge59

for m

ore

info

rmat

ion

on th

e ala

rmCo

nfigu

ratio

n va

lue.

EOC status information

EOC

sta

tus

info

rmat

ion

Doe

s th

e at

trib

ute

or e

lem

ent d

ispl

ay re

leva

nt in

form

atio

n in

cas

e eo

cHan

dlin

g is

set

to …

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ect

croc

usSh

dslT

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703

/…

Attr

ibut

e(E

lem

ent)

none

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sive

disc

over

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ory

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alarm

Conf

igur

atio

n

line

eocA

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hres

holds

(lineA

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ation

, sign

al-No

ise)

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val

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al

way

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0.•

On

the

cent

ral1 : y

es. T

he v

alue

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ose

as s

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o. T

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l attr

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to ce

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l attr

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set

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mote.

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val

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kA-

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attr

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aters

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d

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(coun

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vend

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vend

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Yes

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lVer

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Yes

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tate

Yes

.

eocA

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hres

holds

(lineA

ttenu

ation

, sign

al-No

ise)

No.

The

val

ue is

alw

ays

0.0.

Yes

. The

val

ues

are

thos

e as

set

in th

e lin

kA-

larmT

hres

holds

attr

ibut

e on

the

rem

ote

devi

ce.

Yes

. The

val

ues

are

thos

e as

set

in th

e lin

kA-

larmT

hres

holds

attr

ibut

e on

the

cent

ral d

evic

e.

repe

ater[

]/line

Pair[

]or en

d/line

Pair[

]

lineA

ttenu

ation

No

repe

ater[

] or

end

obje

ct is

cre

-at

ed.

No.

The

val

ue is

alw

ays

0.0.

Yes

. The

val

ues

are

the

actu

al li

ne a

ttenu

atio

n an

d si

gnal

noi

se a

s m

easu

red

on th

e re

mot

e de

vice

.sig

nalN

oise



62

EOC performance information

EOC

per

form

ance

info

rmat

ion

Doe

s th

e at

trib

ute

or e

lem

ent d

ispl

ay re

leva

nt in

form

atio

n in

cas

e eo

cHan

dlin

g is

set

to …

?

Obj

ect

croc

usSh

dslT

tRpG

703

/…

Attr

ibut

eno

nedi

scov

ery

inve

ntor

yin

foala

rmCo

nfig

urat

ion

repe

ater[

]/line

Pair[

]or en

d/line

Pair[

]

lineP

aram

eters

No

repe

ater[

] or

end

obje

ct is

cre

-at

ed.

No.

The

val

ue is

alw

ays

0.0.

Yes

. The

val

ues

are

the

sam

e as

thos

e on

the

rem

ote

devi

ce.

Not

e th

at in

this

cas

e th

e sy

sUpT

ime

is n

ot th

e el

apse

d tim

e si

nce

the

last

col

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ot, b

ut th

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apse

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the

crea

tion

of th

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peate

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perfo

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h24L

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rame

ters

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d7Lin

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rs

d7Pe

rform

ance



63

EOC alarm information

EOC

ala

rm in

form

atio

nD

oes

the

attr

ibut

e or

ele

men

t dis

play

rele

vant

info

rmat

ion

in c

ase

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andl

ing

is s

et to

… ?

Obj

ect

croc

usSh

dslT

tRpG

703

/…

Attr

ibut

eno

nedi

scov

ery

inve

ntor

yin

foala

rmCo

nfig

urat

ion

line/l

inePa

ir[ ]

lineA

ttenu

ation

The

thre

shol

ds a

s co

nfig

ured

in th

e lin

kAlar

mThr

esho

lds a

ttrib

ute

on th

e lo

cal d

evic

e ar

e us

ed to

gen

erat

e th

e al

arm

s.Th

e th

resh

olds

as

con-

figur

ed in

the

linkA

larm-

Thre

shold

s attr

ibut

e on

th

e ce

ntra

l1 dev

ice

are

used

to g

ener

ate

the

alar

ms2 .

1.Th

e ce

ntra

l dev

ice

is th

e de

vice

on

whi

ch th

e ch

anne

l attr

ibut

e is

set

to ce

ntral.

2.R

efer

to 5

.2.2

- Th

e E

OC

han

dlin

g at

tribu

te o

n pa

ge59

for m

ore

info

rmat

ion

on th

e ala

rmCo

nfigu

ratio

n va

lue.

signa

lNois

e

repe

ater[

]/line

Pair[

]or en

d/line

Pair[

]

lineA

ttenu

ation

No

repe

ater[

] or

end

obje

ct is

cre

-at

ed.

No

alar

ms

are

gene

rate

d.Th

e th

resh

olds

as

con-

figur

ed in

the

linkA

larm-

Thre

shold

s attr

ibut

e on

th

e lo

cal d

evic

e ar

e us

ed to

gen

erat

e th

e al

arm

s.

The

thre

shol

ds a

s co

n-fig

ured

in th

e lin

kAlar

m-Th

resh

olds a

ttrib

ute

on

the

cent

ral d

evic

e ar

e us

ed to

gen

erat

e th

e al

arm

s.

signa

lNois

e

errS

ecEx

ceed

edTh

e th

resh

olds

as

con-

figur

ed in

the

linkA

larm-

Thre

shold

s attr

ibut

e on

th

e lo

cal d

evic

e ar

e us

ed to

gen

erat

e th

e al

arm

s.

sevE

rrSec

Exce

eded



64

5.3 Configuring the timing mode

crocusShdslTtRpG703/line/timingMode

Use the timingMode attribute to set the timing mode.

The Crocus SHDSL G703 has two clock sources:

• one takes care of the clocking on the SHDSL line.• one takes care of the clocking on the modular user interface.

Using the timingMode attribute you can define whether these two clocks run independent from each other (i.e. plesiochronous mode) or whether they are "coupled" with each other (i.e. synchronous mode).

The timingMode attribute has the following values:

• If you set the framing attribute to framed, then the Crocus SHDSL G703 always operates in plesio-chronous mode regardless of the setting of the timingMode attribute.

• You always have to work in the same timing mode at both sides of the link. In other words:- central: synchronous - remote: synchronous → allowed- central: plesiochronous - remote: plesiochronous → allowed- central: synchronous - remote: plesiochronous or vice versa → not allowed

• For compatibility with other SHDSL devices, setting this attribute to the correct value might be essen-tial. Refer to 5.14 - Crocus SHDSL G703 compatibility with other SHDSL devices on page 119.

Value Description

plesiochronous In this mode each SHDSL frame has 0 or 4 stuffing bits to compensate clock devi-ations towards the user interface clock. In this mode, all possible clocking modes can be selected.

synchronous In this mode the SHDSL frame does not have stuffing bits to compensate clock deviations towards the user interface clock. In this case only internal and slave receive clocking is allowed. What is more, internal clocking is only allowed at one side of the link (e.g. the central side) and slave receive clocking at the other side (e.g. the remote side).

Synchronous mode is the typical timing mode in DSLAM set-ups.

Default:plesiochronousRange: synchronous / plesiochronous



65

5.4 Clocking of Crocus devices to access PDH and SDH networks

This section explains the principles of network clocking and is a guideline for configuring the Crocus SHDSL G703 to interface to the carrier networks.

A good knowledge and understanding about clocking mechanisms is essential to correctly build error free synchronous networks, connecting end users to PDH and SDH infrastructures.

As this section gives a general explanation about clocking, section 5.5 - Configuring the clocking mode on page 82 actually describes how to configure the clocking mode on the Crocus SHDSL G703.


• 5.4.1 - Introduction on page 66• 5.4.2 - Network clocking principles on page 67• 5.4.3 - The Plesiochronous Digital Hierarchy (PDH) networks on page 68• 5.4.4 - The Synchronous Digital Hierarchy (SDH) networks on page 70• 5.4.5 - Access to PDH networks on page 73• 5.4.6 - Access to SDH networks on page 76• 5.4.7 - Synchronous interfaces on page 80



66

5.4.1 Introduction

Since transmission and switching in carrier networks has become digital, network synchronisation has an increasing importance in telecommunications.

Basically there was no need for network synchronisation to interconnect analogue switching machines over digital transport networks. Transmission equipment based on the Plesiochronous Digital Hierarchy (PDH) must not be synchronised, it allows multiplexing of asynchronous channels with substantial fre-quency offsets using the bit justification technique.

When digital switching machines such as ISDN exchanges and cross-connect switches were introduced, problems arose with asynchronous architectures as PDH because digital switching equipment requires to be synchronised in order to avoid slips. By the introduction of the circuit switched data networks, there was a need of more stringent synchronisation requirements.

In the ‘90s, the ongoing spreading of Synchronous Digital Hierarchy (SDH) technology in transmission networks has created a need for adequate network synchronisation facilities. For this reason, network operators have set up synchronisation networks.

In this section, clocking principles for access to and data transfer over PDH and SDH transmission net-works are explained.



67

5.4.2 Network clocking principles

Central clock

To guarantee good synchronisation in digital networks, all network elements are synchronised to a cen-tral 2.048 kHz clock with long term accuracy. This central clock is generated by a high precision Primary Reference Clock (PRC) with an accuracy of 1x10-11 or better with verification to Coordinated Universal Time (UTC) as specified in ITU-T Recommendation G.811.

A PRC can be realised as an autonomous clock or can be controlled by UTC-derived precision signals received from a radio or satellite system (GPS).

Hierarchical structure

To distribute this clock through the network, a hierarchical structure is defined in ITU-T standards G.812 & G.813. Refer to the following figure:

The PRC is transported via the clock network to the slave units. This clock signal is regenerated in the SSUs and SECs with the aid of phase-locked loops (PLLs). If the clock supply fails, the slave unit applies the stored frequency correction to keep a relatively accurate clock signal.

The clock signal paths through the network can be the same as those used for the data transport.

Station clock

Modern synchronisation networks are based on the concept of a building clock, this is a slave clock unit as the SSUs and SECs, that supplies timing to all the equipment deployed in that location, including dig-ital exchanges, cross-connects, terminal equipment and multiplexers. This clock signal is what we call station clock.



68

5.4.3 The Plesiochronous Digital Hierarchy (PDH) networks

Asynchronous tributaries

PDH systems allow multiplexing of asynchronous tributaries with substantial frequency offsets based on bit justification. Therefore PDH networks do not need to be synchronised. Every equipment clock is inde-pendent from the others, but their frequencies are kept close to the nominal values within a specified tolerance (for example: +/- 50 ppm at 2 Mbit/s).

PDH systems are transparent to the timing content of the transported digital signals. This means that, despite the fact that the multiplexer clocks are independent, the transported signal keeps its frequency, only gathering some jitter due to transmission lines and justification. The bit justification technique allows to transfer the timing content of a digital signal across a transmission chain where clocks are asynchro-nous, as shown in the figure below.



69

Timing

Because E1 signals coming from PCM multiplexers or cross connect switches need to be synchronised to avoid slips, this equipment is enslaved to a master clock, delivered by a Primary Reference Clock (PRC) via the clock synchronisation network. The synchronous E1 signals are multiplexed into asyn-chronous E2 and further on in E3 and E4 signals. E2, E3 and E4 are asynchronous multiplex signals with the 2M timing signal embedded. This allows transferring 2 Mbps timing across PDH networks to syn-chronise clocks located in far locations.

Gateways

By the introduction of the PDH infrastructure, two different multiplex stages were defined: one based on a primary rate of 2 Mbit/s and one based on 1,5 Mbit/s as used in North America and Japan. Gateways between these networks were very difficult and expensive to realize.

Disadvantages

Inherent to plesiochronous transport is the generation of important jitter and wander at the tributary inter-faces.

Another disadvantage of PDH is that, once multiplexed, there is no simple way to extract an E1 bearer without fully demultiplexing down from the E4 level towards E1, requiring a complete hierarchy of multi-plexers.



70

5.4.4 The Synchronous Digital Hierarchy (SDH) networks

SDH hierarchy

To eliminate the disadvantages of the PDH infrastructure, the SDH hierarchy was developed, bringing the following advantages:

• high transmission rates, up to 10 Gbit/s over fiber optic links• more efficient and flexible add & drop function• high availability, reliability and robustness• multi-service platform: able to handle PSTN, ISDN, Frame Relay, ATM, IP, etc.• interfaces are globally standardized, easier to interconnect carriers

The basic SDH frame is called a Synchronous Transport Module (STM-N), in which heterogeneous asynchronous and synchronous tributary channels as PDH and ATM can be mapped. Frame speeds can be between 52 Mbit/s and 10 Gbit/s.

The basic package unit for tributary channels is the container C-n. For each PDH speed a special con-tainer is provided. These containers are much larger than the payload to be transported, the remaining capacity is used for justification.



71

Network elements

Current SDH networks are build with four different types of network elements:

• regenerators: regenerate the clock and amplitude relationships of the incoming data signals.

• terminal multiplexers: combine asynchronous and synchronous input signals into higher bit rate STM-N signals.

• add & drop multiplexers: asynchronous and lower speed synchronous signals can be extracted from or inserted into higher speed SDH bitstreams.

• digital cross-connects (DXC): allows mapping of PDH channels in SDH virtual containers as well as switching of various containers.



72

Synchronisation

In networks using SDH transport infrastructure, not only primary rate multiplexers and switching equip-ment are synchronized, but also the nodes of the SDH transport network, limiting jitter and wander gen-eration at the interfaces.

Redundant ring structures

SDH infrastructures typically are hybrid communication networks, build in redundant ring structures with various asynchronous and synchronous tributaries as in the example below.



73

5.4.5 Access to PDH networks

Synchronisation on the same clock

As the 2 Mbps and Nx64 Kbps signals in the PDH networks are synchronized on the 2.048 kHz Primary Reference Clock, also all access devices must be synchronized on the same clock. This can be done by applying the network clock to the “station clock” input of the devices or by operating in “external clock”. Therefore these interfaces are synchronous, allowing transporting clock from one device to another. Clock signals can be transferred separately from the data signals (e.g. station clock) or can be encoded in the data, as done in the G.703 interfaces which are typically used to connect to PDH/SDH infrastruc-tures.



74

Accessing PDH networks - examples

• Example 1: typical Nx64 Kbps connections

Typical Nx64 Kbps connections to a PDH infrastructure are shown below. As the backbone imposes the clock, the equipment connected to the network necessarily operates in external or station clock, the end points in slave receive. In external clock, the modem clock is derived from the incoming G.703 signal, in case of station clock, the clock signal is transferred separately.



75

• Example 2: accessing PDH networks using a Crocus SHDSL QUAD DXC

The Crocus SHDSL QUAD DXC is perfectly suitable to be used in PDH environment as it can use the station clock or can slave on one of the four E1 interfaces. The most convenient configuration is to use the station clock as master and fallback to the E1 interfaces if the station clock fails.

If no station clock is available, the QUAD has to search for a clock on the E1 interfaces as shown in the next picture.



76

5.4.6 Access to SDH networks

Asynchronous or synchronous

Channel inputs on Add & Drop Multiplexers in SDH networks can be asynchronous or synchronous. The most common way to connect PDH tributaries to ADMs is asynchronous, also for the 2.048 Kbps signals, without giving a clock at his interfaces. This implicates that, when we interconnect two end-users over a SDH backbone, the clock must be generated by other means. This can be the station clock, derived from the PRC, or an internal clock generator from one of the transmission devices, such as modems, or by the end user application. This clock generator must operate within the required specifications regarding accuracy and stability, for example +/- 50 ppm at 2.048 Kbps.

Typical 2 Mbit/s connections

Some typical 2 Mbit/s connections to a SDH infrastructure are shown below. It is clear that the clock con-figuration at the end-points depends on the type of used interfaces and the end-user equipment.



77

Modems with integrated cross-connect functionalities

Special attention must be paid in case modems with integrated cross-connect functionalities are used. As a DXC supports only one clock to synchronize all ports, all modems connected to the DXC must use this same clock. In this case the use of the station clock is strongly advised. Refer to the figure below for an example.



78

Accessing SDH networks - examples

Below some examples of topologies to access SDH networks are given, using different types of access equipment. To keep the drawings orderly, the ADM symbols are skipped. It must be clear that these drawings are just some examples and do not exclude many other clock configurations and combinations in access topologies.

• Example 1: accessing SDH networks using the Crocus SHDSL QUAD DXC

When using the Crocus SHDSL QUAD DXC, only one clock can be used by all interfaces of this card. As shown below, this clock can be the station clock or the internal clock. All end-to-end connections run-ning over the QUAD are slaved on this clock:

- Using the station clock:

- Using the internal clock:

As in an SDH network the connections are made to an ADM and not to a DXC, clock slaving on the E1 ports of the SHDSL QUAD is not recommended and this also means that end-user equipment should not generate the clock.



79

• Example 2: accessing SDH networks using a Crocus SHDSL CV or 2300

In case a Crocus SHDSL CV or 2300 is installed, each interface may have an independent clocking, allowing end-user equipment to generate the clock.

- Using a Crocus SHDSL CV:

- Using a 2300:



80

5.4.7 Synchronous interfaces

Data transfer

On a synchronous interface, data transfer between DTE and DCE is done at the rhythm of a clock signal. This timing signal is used to sample the transmit data in the transmitter of the DCE. The transmitter also uses this timing signal to modulate his carrier in case of a voice band modem or to encode the data in case of a baseband modem. This means that the clock frequency of the transmit clock is transported by the line signal to the remote end. The transport of the synchronous user data over the link can be syn-chronous or plesiochronous.

In the receiver at the remote end, the line signal is demodulated or decoded and receive clock is derived from the received line signal. By doing this, the receive clock has the same frequency as the transmit clock at the other side of the link. In this way the transmitter at one side and the receiver at the other side of the link are perfectly synchronized.



81

Exchange of clock signals

The way clock signals are exchanged between DTE and DCE depends on the type of interface:

• V24, V35, V36, RS530, HSSI: these interfaces have separated clock signals to synchronize transmit (TxClk or ExClk) and receive (RxClk) data:

• X21 interface uses only one clock signal (S or X) to synchronize both transmit and receive data:

• G703 interface uses codirectional timing, this means that clock information is encoded in the data sig-nal:



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5.5 Configuring the clocking mode

This section explains how to configure the clocking mode on the Crocus SHDSL G703. It also explains how the auto clocking mechanism works. The following gives an overview of this section.

• 5.5.1 - Configuring the clocking mode on the Crocus SHDSL G703 on page 83• 5.5.2 - Schematic overview of the different clocking modes for G703 type of interfaces on page 84• 5.5.3 - Possible clocking modes versus DTE interface on page 86



83

5.5.1 Configuring the clocking mode on the Crocus SHDSL G703

The location of the clocking attribute in the Crocus SHDSL G703 containment tree is:

crocusShdslTtRpG703/g703/clocking

Use the clocking attribute to select a clocking mode. The following table gives an overview:

Clocking mode Description

internal The Crocus SHDSL G703 generates the transmit clock signal and sends it to the application via the R circuit. Internal clocking mode implies that the applications on both sides of the link should be in slave receive clocking mode. In other words, there can be only one master clock in a G703 system.

external The application takes its timing from the network. The extracted clock is sent together with the TxD over the T circuit to the DCE. If no valid receive clock is found while in external clock mode, the modem switches to internal clock mode.

Default:externalRange: internal/external



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5.5.2 Schematic overview of the different clocking modes for G703 type of interfaces

One encoded signal

As G703 interfaces are codirectional interfaces, they transport both data and clock in the same encoded signal. On this way they can transport clock information from a higher network level to a lower network level in the digital hierarchy. For this reason, the default configuration of G703 interfaces is external clock.

G703 interfaces are typically used to give access to carrier backbones and to interconnect backbone equipment such as cross-connect switches (DXC), TDM multiplexers and PABXs in PDH infrastructures. In these networks, only one master clock is allowed to synchronize all devices at the E1 level (2.048 kbps).

Crocus SHDSL TT vs. Crocus SHDSL CV

On a Crocus table-top modem, the G703 interface can be configured for internal or external clock oper-ation. A card version modem also supports the use of a station clock that can be applied via the back-plane of the cardnest. When station clock is selected, also a backup clock can be provided in case the station clock is not present.

Clock functionalities

Depending on the type of equipment, the clock functionalities can differ: when multiple modems and mul-tiple interfaces are available on the same device, there is a main difference in clock functionalities depending on the fact of a DXC feature is present or not. If no DXC is present, the clocking on all interfaces is independent and so we may have different clocking on each interface (Crocus SHDSL TWIN, 2300). In case a DXC is present only one clock is allowed for all interfaces (Crocus SHDSL QUAD DXC).



85

Crocus SHDSL TT

The figures below show the relationships between clock and data in the different configurations for the Crocus SHDSL TT:

The figure below show the possible configurations in TMA:



86

5.5.3 Possible clocking modes versus DTE interface

The following table gives an overview of the clocking modes which are available on the different Crocus SHDSL devices:

Device

INT

INT

ALT

INT

PREF

SLV

RC

V

SLV

RC

V A

LT

SLV

RC

V PR

EF

EXT

EXT

LOO

PBA

CK

LIN

E

STA

TIO

N

AU

TO

Crocus SHDSL TT

Vxx/RS530/X21 X X X X X X X

G703 X X

DUAL PORT X X

ROUTER X X

Crocus SHDSL TWIN CV

Vxx/RS530/X21 X X X X X X X

G703 X X X

DUAL PORT X X X

ROUTER X X X

Crocus SHDSL TT G703 X X

Crocus SHDSL TT RS530 X X X X X X X

Crocus SHDSL QUAD CV DXC

X1

1. EXT on the Crocus SHDSL QUAD CV DXC means that the modem can be slaved on one of the E1 interfaces

23002

2. Clocking parameters on the 2300 refers to the receive clocking, refer to the 2300 manual for more information

X X X X



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5.6 Configuring the minimum line speed

This section starts with an important remark on setting the minimum line pair speed. Then it explains how to configure a minimum line speed and what the purpose is of doing this. The following gives an overview of this section:

• 5.6.1 - Important remark on the minimum line pair speed on page 88• 5.6.2 - The minimum line pair speed attribute on page 89• 5.6.3 - Purpose of the minimum line pair speed on page 92



88

5.6.1 Important remark on the minimum line pair speed

If you configure the minimum line pair speed (i.e. you set the minLinePairSpeed attribute to any value dif-ferent from <opt>), then only one master clock is allowed in the system.

In other words, only the following clocking combinations are allowed:

Executing an ET test on both sides will not work in case both sides change their clocking modes to inter-nal!

Example

The following is a perfectly legal set-up as long as the minimum line pair speed is not configured (i.e. minLinePairSpeed = <opt>):

However, if you set the minimum line pair speed to a value higher than the user speed, then the SHDSL line operates in slotted E1 mode. In that case, only one master clock is allowed in the system. So you would have to change the configuration to, for example:

In these general examples, serial interfaces are used, but the principle stays the same for G703 inter-faces.

One side Other side

internal always slave receive

external slave receive

external external (provided the application on both sides use the same network clock)

station station or slave receive

• clocking = internalPreferred• speed = 640kbps• minLinePairSpeed = <opt>

• clocking = internalPreferred• speed = 640kbps• minLinePairSpeed = <opt>

• clocking = internalPreferred• speed = 640kbps• minLinePairSpeed = 1024kbps

• clocking = slaveRcvPreferred• speed = 640kbps• minLinePairSpeed = 1024kbps



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5.6.2 The minimum line pair speed attribute

Also see 5.6.1 - Important remark on the minimum line pair speed on page 88.

The location of the minimum line pair speed attribute in the Crocus SHDSL G703 containment tree is:

crocusShdslTtRpG703/line/minLinePairSpeed

Use the minLinePairSpeed attribute to determine what the minimum speed on the line pair has to be when the Crocus SHDSL G703 trains.

The purpose of this is:

• To be able to set the line speed independently from the user speed. This allows easy upgrading to a higher user speed.

• To be able to use less than 3 time slots (or 6 time slots on a 2 pair version).

Default:<opt>Range: 192kbps up to

2048kbps (in steps of 64kbps)



90

The minLinePairSpeed attribute has the following values:

Value Description

<opt> The line speed follows the user speed.

For example, if the user speed is set to 640 kbps (speed(2P) = 640kbps), then the speed on the line pair equals …

• 640 kbps in case of a Crocus SHDSL G703 1P (1 pair) version.• 320 kbps on each line pair in case of a Crocus SHDSL G703 2P (2 pair) ver-

sion.

192kbps up to 2048kbps (in steps of 64kbps)

The line speed no longer follows the user speed. The line trains on the speed as set with the minLinePairSpeed attribute.

For example, if the user speed is set to 640 kbps (speed(2P) = 640kbps) and the min-imum line speed is set to 1024 kbps (minLinePairSpeed = 1024kbps), then the speed on the line pair(s) equals 1024 kbps. (On a Crocus SHDSL G703 1P (1 pair) ver-sion this is also the total line speed. On a Crocus SHDSL G703 2P (2 pair) version, however, the total line speed then is 2048 kbps since the minLinePairSpeed attribute sets, as the name implies, the minimum speed on the line pair.)

Remark

Note that the maximum total line speed that you can set using the minLinePair-Speed attribute is 2048 kbps. So for a Crocus SHDSL G703 1P (1 pair) version you can set the minLinePairSpeed attribute to its maximum value (being 2048 kbps). For a Crocus SHDSL G703 2P (2 pair) version, however, you can only set it up to 1024 kbps (which is a total line speed of 2048 kbps). If you nevertheless set the minLinePairSpeed attribute to a value higher than 1024 kbps, then a mes-sage is displayed in the messages table and the Crocus SHDSL G703 2P contin-ues to operate with a total line speed of 2048 kbps.



91

• Make sure that you set the minLinePairSpeed attribute to the same value on both the central and remote SHDSL device.

• When using the minLinePairSpeed attribute on the central or remote SHDSL device, the user speed of the other device may not be set to autospeed.



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5.6.3 Purpose of the minimum line pair speed

Easily upgrading the user speed

You could determine in advance what the maximum speed is that can be achieved on the line (e.g. 1024 kbps) and set the minimum line pair speed to this value (e.g. minLinePairSpeed = 1024kbps). Suppose the customer initially wants 256 kbps. So you set the user speed to 256 kbps (speed(2P) = 256kbps). Now when the customer decides he wants a higher user speed (e.g. 640kbps), then you can easily change the user speed to this higher speed (e.g. speed(2P) = 640kbps) without first having to determine again whether the line can handle this speed. What is more, the line does not have to retrain after you changed the user speed. So you can perform user speed upgrades in an easy, cost-efficient way.

Low speed operation - compatibility with other SHDSL devices

If you want to use only 1 or 2 time slots (or 2 or 4 time slots in case of a 2 pair version), then you have to set the minimum line pair speed to 192 kbps (minLinePairSpeed = 192kbps). This to insure correct time slot synchronisation on both sides.

Low speed operation - 2 time slots and 2 applications

If you want to use only 2 time slots (or 4 time slots in case of a 2 pair version) and each time slot carries the data of a different application, then you also have to set the minimum line pair speed to 192 kbps (minLinePairSpeed = 192kbps). This to insure that on the remote side the data is separated correctly.

The reason is the following:

• In case you select only 2 time slots (or 4 time slots in case of a 2 pair version) but you do not configure the minimum line pair speed (minLinePairSpeed = <opt>), then the SHDSL line operates in Nx64 mode (refer to crocusShdslTtRpG703/line/framerType on page 166 for more information on this mode). Since in this case the user data has become a continuous bit stream on the SHDSL line, it is almost impossible to correctly separate the data from the two different applications at the remote end.

• In case you select only 2 time slots (or 4 time slots in case of a 2 pair version) but you configure the minimum line pair speed to be 192 kbps (minLinePairSpeed = 192kbps), then the SHDSL line operates in slotted E1 mode (refer to crocusShdslTtRpG703/line/framerType on page 166 for more information on this mode). Since in this case the user data is also put in time slots on the SHDSL line, it is perfectly possible to separate the data from the two different applications at the remote end.



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5.7 Configuring framing and time slots

This section explains how to select the framing mode and how to allocate time slots on a Crocus SHDSL G703. The following gives an overview of this section:

• 5.7.1 - Selecting unframed or framed mode on page 94• 5.7.2 - Selecting the time slots on page 95• 5.7.3 - Time slot transposition on page 96



94

5.7.1 Selecting unframed or framed mode

crocusShdslTtRpG703/g703/framing

Use the framing attribute to select between unframed or framed mode:

Value Description

unframed In unframed (or transparent) mode, a 2 Mbps data stream is sent transparently over the line.

The attributes timeSlots and crc4Insertion are of no use in unframed mode.

framed In framed (G.704 framing) mode and in case of a …

• Crocus SHDSL G703 1P (1 pair), up to 32 time slots each containing a 64 kbps data stream can be sent over the line. Each 64 kbps time slot can be enabled or disabled.

• Crocus SHDSL G703 2P (2 pair), up to 16 time slots pairs together containing a 128 kbps data stream can be sent over the line. Each 128 kbps time slot pair can be enabled or disabled. I.e. you always have to select an even number of time slots. E.g. 2, 4, 10, etc.

Remark

If you set the framing attribute to framed, then the Crocus SHDSL G703 always oper-ates in plesiochronous mode regardless of the setting of the timingMode attribute.

auto If after the training sequence the chosen line speed is …

• 2 Mbps, then the G703 interface automatically works in unframed mode.• lower than 2 Mbps, then the G703 interface automatically works in framed

mode. Which timeslots will be used, depends on the line speed and the times-lots configured in the timeslot attribute:- If the line speed is lower than the configured timeslots, then the correspond-

ing number of timeslots starting from the lowest configured will be used.- If the line speed is higher than or equal to the configured timeslots, only the

configured timeslots will be active.

In all cases the timeslot attribute in the status group reflects the timeslots used.

Important remark

• In case of a Crocus SHDSL G703 2P (2 pair) version, set the framing attribute of either the central or remote Crocus SHDSL G703 to auto, but not of both. Else the 2 line pairs could train at a different speed which is not allowed.

• The number of selected timeslots must be higher then or equal to the line speed to have a good configuration.

Default:unframedRange: framed / auto /

unframed



95

5.7.2 Selecting the time slots

crocusShdslTtRpG703/g703/timeSlots

Use the timeSlots attribute to enable or disable the individual 64 kbps time slots in the framed data stream.

By default, timeslot 0 is disabled and timeslots 1 up to 31 are enabled.

Important remark

• Do not enable time slot 0 in the local Crocus SHDSL G703 and a non-G703 interface in the remote Crocus SHDSL G703.

• The Crocus SHDSL G703 does not work on line speeds …- ·64 and 128 kbps (i.e. 1 and 2 time slots) in case of a 1 pair version.- ·128 and 256 (i.e. 2 and 4 time slots) in case of a 2 pair version.

• When line speeds 64 or 128 kbps are selected, the modem will train on 192 kbps (3 time slots). So when one timeslot is selected, the line will train on 192 kbps and there will be two dummy time slots added on the line.

• When line speeds 64 or 128 kbps are selected, the modem will train on 192 kbps (3 time slots), while only one timeslot can be selected on the G703 interface. When an ET test is started at the side where auto framing (with all timeslots enabled) is set, the pattern of the ET test will be placed in 3 timeslots, and not in the one selected timeslot.

Default:ts0=1, other ts=0Range: enumerated, see below



96

5.7.3 Time slot transposition

If at both sides of the link a G703 Nx64k interface is used, it is possible to perform a time slot transposi-tion. Such a transposition is realised by setting the G703 Nx64k in framed mode and enabling at both sides the time slots which have to be transposed. The first time slot at the local side will be put in the first time slot at the remote side, the second in the second, and so on.

Example:

In this example, TS6 of the local Crocus SHDSL G703 is put in TS10 of the remote Crocus SHDSL G703, TS12 in TS16 and TS25 in TS26. A similar mechanism exists in the receive direction.

The following figure shows the time slot transposition mechanism:

• framed mode• TS6, TS12, TS25 = 1• all other time slots = 0

• framed mode• TS10, TS16, TS26 = 1• all other time slots = 0



97

5.8 Low speed limitations on the G703 interfaces

When configuring low speed on the G703 interfaces, there are some limitations. The following tables give an overview of the possible speeds on the G703 interfaces while combining different G703 inter-faces. The first table gives all the combinations for the 1 pair SHDSL devices, while the second table gives the combinations for the 2 pair SHDSL devices.

1 Pair version

2 Pair version

1 Pair ver-sion

Crocus SHDSL G703 G703

Crocus SHDSL G703 +G703 Nx64K

Crocus SHDSL G703 +Dual Port if

Crocus SHDSL G703 +Nx64K if

1421 SHDSL Router in plesio-chronous mode

1421 SHDSL Router in synchro-nous mode


N=3,4, … 32

N=3,4, … 32

N=3,4, … 32

N=3,4, … 32

N=3,4, … 32

2M fixed (unframed)

2 Pair ver-sion


Crocus SHDSL G703 +G703 Nx64K

Crocus SHDSL G703 +Dual Port if

Crocus SHDSL G703 +Nx64K interface

1421 SHDSL Router in plesio-chronous mode

1421 SHDSL Router in synchro-nous mode


N=6,8, … 32

N=6,8, … 32

N=6,8, … 32

N=6,8, … 32

N=6,8, … 32

2M fixed (unframed)



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5.9 Configuring the interface specific attributes

crocusShdslTtRpG703/g703/coding

Use the coding attribute to set the G703 interface encoding mode. Possible values are:

crocusShdslTtRpG703/g703/crc4Insertion

This attribute is only relevant in framed mode.

Use the crc4Insertion attribute to determine whether the CRC-4 (cyclic redundancy check) is recalculated before sending it to the interface. The CRC is used to check the data integrity on the G.703 connection.

The crc4Insertion attribute has the following possible values:

Value Description

ami Alternate Mark Inversion is selected. This is a bipolar code with no zero substitu-tion.

hdb3 High Density Bipolar 3 is selected. This is a modified bipolar code.With HDB3 encoding, more than three consecutive zeroes occurring in the data are replaced by a substitution word. This to ensure a high pulse density. Therefore, data links using the HDB3 code can carry data patterns with a low 1 density. Most of the G703 applications use HDB3 encoding.

Value Description

auto In auto mode, CRC-4 insertion is …·

• disabled if the data is unframed,·• enabled if the data is G.704 framed.

disabled CRC-4 insertion is disabled.

enabled CRC-4 insertion is enabled.

Default:hdb3Range: ami / hdb3

Default:autoRange: enumerated, see below



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5.10 Configuring the management attributes

This section explains the management attributes of the Crocus SHDSL G703. These attributes allow you to make all the devices in your network accessible for management from one central location.

First this section gives you some rules of thumb and remarks concerning the management of the Crocus SHDSL G703 in a network. Then it explains the attributes that have an impact on the management of the Crocus SHDSL G703. Finally, it gives some examples of networks and how to configure the Crocus SHDSL G703 to make it accessible for the central management system.


• 5.10.1 - Rules of thumb and remarks concerning management on page 100• 5.10.2 - Using relative or absolute addressing on page 101• 5.10.3 - Selecting the purpose of the control connector on page 102• 5.10.4 - Forwarding management data to the line and control connector on page 103• 5.10.5 - Configuring the management data on the line on page 105• 5.10.6 - Configuring the management data on a G703 interface on page 106• 5.10.7 - Example - management over the line and the control port on page 107• 5.10.8 - Example - management over the line and the E1 interface on page 109



100

5.10.1 Rules of thumb and remarks concerning management

The following lists some rules of thumb concerning the management of OneAccess devices in a network:

• Make sure there is only one path towards the management system. Else you might get unexpected results (e.g. devices that do not answer to polling, answer of several devices at once when polling one device, etc.).

• Once your network starts to become complex on management level (i.e. more than just in-line con-nections as depicted in Relative addressing on page 101), you are advised to use absolute address-ing instead of relative addressing (refer to Absolute addressing on page 101). In practice, it is best to use absolute addressing when you configure one of the attributes listed below as follows:- ctrlPortProtocol attribute to management,- g703/saBits to anything else than transparent.

• Changing the ctrlPortProtocol attribute causes the Crocus SHDSL G703 to reboot.

• When sending management information to the three management interfaces (the line, the G703 inter-face using SA bits, and the CTRL port), a problem may occur. Due to insufficient processing power of the Crocus SHDSL G703, it could occur that a device connected to the Crocus SHDSL G703 can-not be reached anymore (on management level).Conclusion is that sending management information to the three management interfaces simultane-ously is not possible, due to lack of processing power of the Crocus SHDSL G703.



101

5.10.2 Using relative or absolute addressing

In order to connect with TMA to the Crocus SHDSL G703 (refer to 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42), you can use two addressing schemes:

Address type Description

relative This type of addressing is meant for a network topology where the devices are con-nected in-line on management level. I.e. with extended management connections* between two devices.

To enable relative addressing, no address has to be specified in the device. In other words, you can leave the cms2Address attribute at its default value, being 0.

Relative addressing

Remark

* An extended management connection is realised with a crossed cable between the control connectors of the two OneAccess devices. You also have to set the ctrl-PortProtocol attribute to the value management.

absolute This type of addressing is meant for a network topology where the devices are not connected in-line on management level. I.e. when there is a digital multipoint device present (e.g. the Orchid DM).

To enable absolute addressing, an address has to be specified in the device. Do this using the cms2Address attribute. The absolute addressing range goes from 1 up to 65535. Refer to crocusShdslTtRpG703/management/cms2Address on page 152.

Absolute addressing



102

5.10.3 Selecting the purpose of the control connector

crocusShdslTtRpG703/management/ctrlPortProtocol

The setting of the ctrlPortProtocol attribute depends on what you connect to the control connector of the Crocus SHDSL G703. This is explained in the following table:

Value Description

management Select this value if you want to connect the control connector of the Crocus SHDSL G703 to …·

• a management concentrator (e.g. the Orchid 1003 LAN or 1035 Orchid) for management purposes.·

• the control connector of another OneAccess device using a crossed cable (i.e. back-to-back) in order to create an extended management link. For more infor-mation on extended management links, refer to Relative addressing on page 101 and Forwarding management information on page 103).

When connecting the control connector of the Crocus SHDSL G703 to a COM port of your computer, you can still open a TMA session on the Crocus SHDSL G703. However, you can not open a CLI or ATWIN session

console Select this value if you want to connect the control connector of the Crocus SHDSL G703 to a COM port of your computer in order to manage the Crocus SHDSL G703 locally using TMA, CLI or ATWIN.

Default:consoleRange: management / console



103

5.10.4 Forwarding management data to the line and control connector

crocusShdslTtRpG703/forwardTmaToCtrlPort

Enables or disables propagation of management information to the control port. This allows you to cascade management information through the control port towards another OneAccess device.

The forwardTmaToCtrlPort attribute is only present on the TT.

crocusShdslTtRpG703/forwardTmaToLine

Enables or disables propagation of management information to the line.

If forwardTmaToLine is enabled, management data is sent over the line via a dedicated management chan-nel towards the remote Crocus SHDSL. To determine which management data is forwarded over the line, refer to crocusShdslTtRpG703/line/management on page 142.

If forwardTmaToLine is disabled, O10 management data can still be passed over the line: disabling forwardT-maToLine is not enough to avoid management loops.

Forwarding management information

The management system has been designed to provide access not only to the local Crocus SHDSL G703, but also to all remote Crocus SHDSL G703s or other OneAccess devices in a network.

Default:enabledRange: disabled / enabled




104

• If the attribute forwardTmaToLine is enabled on Crocus SHDSL G703 1, then management information can be propagated over the line (via a dedicated management channel) from Crocus SHDSL G703 1 in site A to Crocus SHDSL G703 2 in site B.

• If the attribute forwardTmaToCtrlPort is enabled on Crocus SHDSL G703 2 and if the control connector of Crocus SHDSL G703 2 is connected with a crossed cable (i.e. back-to-back) to the control con-nector of Crocus SHDSL G703 3, then the management information can also be propagated to Cro-cus SHDSL G703 3.

• If the attribute forwardTmaToLine is enabled on Crocus SHDSL G703 3, then the management informa-tion can even be propagated to the remote of Crocus SHDSL G703 3.

• Etceteras.



105

5.10.5 Configuring the management data on the line

crocusShdslTtRpG703/line/management

Use the management attribute to determine whether and which management data is forwarded over the line (also refer to crocusShdslTtRpG703/forwardTmaToLine on page 128 to enable or disable propagation of management information to the line).

The management attribute has the following possible values:

Value Description

transparent No management data is forwarded over the SHDSL line. The data is passed trans-parently over the line.

o10Management This forwards the proprietary OneAccess O10 protocol over the SHDSL line. This allows you to manage the remote SHDSL device (and possibly other OneAccess devices connected to the SHDSL device).

pathManagement This forwards path management information over the SHDSL line. This allows you to manage complete paths instead of managing individual devices (i.e. ele-ments).For more information on path management, refer to the TMA Path Man-agement manual.

o10-PathManage-ment

This forwards both the proprietary OneAccess O10 protocol as the path manage-ment information over the SHDSL line.

Default:o10-PathManagementRange: enumerated, see below



106

5.10.6 Configuring the management data on a G703 interface

crocusShdslTtRpG703/g703/saBits

Use the saBits attribute to determine whether and which management data is inserted in the SA-bits. If management data is inserted in the SA-bits, then it is inserted in SA registers SA5, SA7 and SA8. SA4 is used as a control register and contains bandwidth information.

The saBits attribute has the following possible values:

Note that forwarding management data over the G703 interface can be very slow. The speed lies between 200 and 2400 bps.

Value Description

transparent No management data is inserted in the SA-bits. The SA-bits are passed transpar-ently.

o10Management This inserts the proprietary OneAccess O10 protocol in the SA-bits. This allows you to forward management data over the G703 interface in a similar way as you can over the line or the control port. This allows more flexibility in managing your network of OneAccess devices.

pathManagement This inserts path management information in the SA-bits. This allows you to man-age complete paths instead of managing individual devices (i.e. elements).

For more information on path management, refer to the Path Management man-ual.

o10-PathManage-ment

This insert both the proprietary OneAccess O10 protocol as the path management information in the SA-bits.

Default:PathManagementRange: enumerated, see below



107

5.10.7 Example - management over the line and the control port



108

In the network depicted on the previous page, the control ports of the modems that reside in the same site are connected to each other. By doing so (and by setting the appropriate attributes as seen on the previous page), the management data can pass from one device to another, not only over the line but also over the control port.

Special points of interest in this network are:

• You have to enable internalDmm on CV 1, because the management data has to be able to pass from modem B to modem A. By doing so, you are able to forward management data over the …- line to TT 3,- control port to CV 2 (on a CV the control port is "linked" to modem A).

• You have to enable internalDmm on CV 2, because the management data has to be able to pass from modem A to modem B. By doing so, you are able to forward management data over the line to both CV 3 modem A and B.

• You have to disable internalDmm on CV 3, else you have two possible paths towards the management system for CV 3. E.g. if you would enable internalDmm, then modem A could contact the management system …- either over the line and then through CV 2 modem A etc.- or through CV 3 modem B, over the line and then through CV2 modem B etc.In this case, you might get unexpected results. Therefore, make sure there is only one path towards the management system!


• You have to disable internalDmm on CV 5, else you have two possible paths towards the management system for CV 5. Make sure there is only one path towards the management system!



109

5.10.8 Example - management over the line and the E1 interface



110

In the network depicted on the previous page, the E1 interfaces of the modems that reside in the same site are connected to each other. By doing so (and by setting the appropriate attributes as seen on the previous page), the management data can pass from one device to another, not only over the line but also over the E1 interface.

Special points of interest in this network are:

• On TT 2 and TT 4, you have to set the saBits to o10Management or o10-pathManagement. By doing so, you are able to forward management data over the E1 interface connection between TT 2 and TT 4. On TT 3, however, you have to set the saBits to transparent, because on CV 1 internalDmm is enabled. Else you have two possible paths towards the management system for CV 1 and all modems after CV 1:- one path through TT 3,- one path through TT4.

In this case, you might get unexpected results. Therefore, make sure there is only one path towards the management system!

• You have to enable internalDmm on CV 1, because the management data has to be able to pass from modem B to modem A. By doing so, you are able to forward management data over the …- line to TT 3,- E1 interface connection between CV 1 modem A and CV 2 modem A.

• On modem A of both CV 1 and CV 2, you have to set the saBits to o10Management or o10-pathManagement. By doing so, you are able to forward management data over the E1 interface connection between modem A of CV 1 and CV 2. On modem B of both CV 1 and CV 2, however, you have to set the saBits to transparent, because on CV 1 and CV 2 internalDmm is enabled. Else you have two possible paths towards the management system. Make sure there is only one path towards the management sys-tem!


• You have to disable internalDmm on CV 3, because else you have two possible paths towards the man-agement system for CV 3. E.g. if you would enable internalDmm, then modem A could contact the man-agement system …- either over the line and then through CV 2 modem A etc.- or through CV 3 modem B, over the line and then through CV2 modem B etc.

In this case, you might get unexpected results. Therefore, make sure there is only one path towards the management system!

• Etceteras.



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5.11 Configuring passwords

This section shows you how to create a (list of) password(s) with associated access level in the security table. It also explains how to correct the security table in case of error or in case you forgot your pass-word. Furthermore, this section shows you how to enter the passwords in the different maintenance tools.


• 5.11.1 - Adding passwords to the security table on page 112• 5.11.2 - Entering passwords in the different management tools on page 112



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5.11.1 Adding passwords to the security table

In order to avoid unauthorised access to the Crocus SHDSL G703 and the network you can create a list of passwords with associated access levels in the security table. Do this using the security attribute. Refer to crocusShdslTtRpG703/security on page 127.

5.11.2 Entering passwords in the different management tools

Now that you created a (list of) password(s) in the Crocus SHDSL G703, you have to enter these pass-words every time you want to access the Crocus SHDSL G703 with one of the maintenance or manage-ment tools.

The following table explains how to enter passwords in the different maintenance or management tools:

• If no passwords are created, everybody has complete access.• If you define at least one password, it is impossible to access the Crocus SHDSL G703 with TMA if

you do not enter the correct password.• If you create a list of passwords, you should create at least one with write and security access. If not,

you will be unable to make configuration and password changes after activation of the new configu-ration.

Maintenance or man-agement tool

How to enter the password?

TMA Enter the password in the Connect… window.

TMA CLI, TMA Ele-ment Management1 and TMA for HP OpenView1

1. Only possible through a management concentrator.

Use the application TmaUserConf.exe to create a TMA user and assign a password to this user. The password should correspond with a password configured in the device.

Refer to the manual of TMA CLI, TMA Element Management or TMA for HP OpenView for more information.

CLI You are prompted to enter the password when the session starts.

ATWIN You are prompted to enter the password when the CLI session starts. Then you can start an ATWIN session.

Web Interface You are prompted to enter the password when the session starts.

SNMP1 Define the password as community string. If no passwords are defined, then you can use any string as community string.

TML Enter the password after the destination file name. Separate password and file name by a ‘?’.

Example: tml –fsourcefile@destinationfile?pwd

(T)FTP1 Enter the password after the destination file name. Separate password and file name by a ‘?’.

Example: put sourcefile destinationfile?pwd



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5.12 Executing configuration actions

This section shows you how to execute actions on the configuration. The following gives an overview of this section:

• 5.12.1 - What are the different configuration types? on page 114• 5.12.2 - Activating the configuration on page 115• 5.12.3 - Loading the default configuration on page 115• 5.12.4 - The load default configuration action in TMA on page 116• 5.12.5 - Loading the default configuration using a DIP switch on page 117



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5.12.1 What are the different configuration types?

This section explains the different configuration types that are present in the Crocus SHDSL G703.

Which are the configuration types?

Four types of configuration are present in the Crocus SHDSL G703:

• the non-active configuration• the active configuration• the default configuration.

Explaining the configuration types

When you configure the Crocus SHDSL G703, the following happens:

Which are the configuration actions?

You can execute the following actions on the configuration:

• crocusShdslTtRpG703/Activate Configuration on page 129• crocusShdslTtRpG703/Load Default Configuration on page 129• crocusShdslTtRpG703/Load Saved Configuration on page 130• crocusShdslTtRpG703/Cold Boot on page 130

Phase Action Result

1 Connect the computer running the mainte-nance tool to the Crocus SHDSL G703.

The non-active configuration is displayed on the screen.

2 Modify the non-active configuration. The modifications have no immediate influ-ence on the active configuration currently used by the Crocus SHDSL G703.

3 Complete the modifications on the non-active configuration.

The non-active configuration has to be acti-vated.

4 In case of …

• TMA, click on the TMA button Send all attributes to device: .

• any other maintenance tool than the graphical user interface based TMA (e.g. ATWIN, CLI, Web Interface, Easy-Connect terminal, TMA CLI), then exe-cute the Activate Configuration action.

The non-active configuration becomes the active configuration.



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5.12.2 Activating the configuration

As explained in section 5.12.1 - What are the different configuration types? on page 114, when you fin-ished configuring the Crocus SHDSL G703 you have to activate the configuration changes you made.

In case of …

• TMA, click on the TMA button Send all attributes to device: .

• any other maintenance tool than the graphical user interface based TMA (e.g. ATWIN, CLI, Web Interface, EasyConnect terminal, TMA CLI), then execute the Activate Configuration action.

5.12.3 Loading the default configuration

If you install the Crocus SHDSL G703 for the first time, all configuration attributes have their default val-ues. If the Crocus SHDSL G703 has already been configured but you want to start from scratch, then you can revert to the default configuration.

You can load the default configuration using the Load Default Configuration …

• action. Refer to 5.12.4 - The load default configuration action in TMA on page 116.• DIP switch. Refer to 5.12.5 - Loading the default configuration using a DIP switch on page 117.



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5.12.4 The load default configuration action in TMA

The location of the Load Default Configuration action in the Crocus SHDSL G703 containment tree is:

crocusShdsl/Load Default Configuration

To load the default configuration, proceed as follows:

Step Action

1 In the TMA window, select the top object crocusShdslTtRpG703 and the group Configuration.

2 In the action window of TMA, click the left mouse button on Load Default Configuration so that this action is selected.

3 Press the right mouse button and select Execute.

4 To see the default configuration, press the Retrieve all attributes from device button.

5 In the action window of TMA, click the left mouse button on Activate Configuration so that this action is selected.




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5.12.5 Loading the default configuration using a DIP switch

The following procedure shows how to load the default configuration using the Load Default Configura-tion DIP switch on the Crocus SHDSL G703 PCB:

Step Action

1 Disconnect the Crocus SHDSL G703 from the power supply.

2 Set DIP switch bank DS1 position 2 to off.

To locate this DIP switch bank and for the DIP switch setting procedure, refer to 3 - DIP switches and straps of the Crocus SHDSL G703 on page 33

3 Reconnect the power supply to the Crocus SHDSL G703.

⇒The Crocus SHDSL G703 reboots and loads the default configuration.

4 Activate the loaded default configuration:

1. Open a management session (e.g. TMA, ATWIN, …) on the Crocus SHDSL G703. Refer to 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42.

2. Execute the Activate Configuration action.

5 Again, disconnect the Crocus SHDSL G703 from the power supply.

6 Reset the appropriate DIP switch to on (see step 2).

7 Properly replace the cover as described in 3.1.4 - Changing DIP switch and strap settings of the TT on page 39 and reconnect the power supply.

⇒The Crocus SHDSL G703 reboots in normal operation mode.



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5.13 Troubleshooting the Crocus SHDSL G703

If you experience trouble when installing, configuring or operating the Crocus SHDSL G703, then check the following:

Check Description

power Is the Crocus SHDSL G703 powered properly?

connections Are all the necessary cables connected to the Crocus SHDSL G703? Are they con-nected to the correct connectors of the Crocus SHDSL G703? Are they connected properly? Did you use the correct cables (straight, crossed, …)?

Refer to 2.6 - Connecting the Crocus SHDSL G703 Table Top on page 20.

other devices Are the devices that are connected to the Crocus SHDSL G703 working properly (are they powered, are they operational, …)?

LEDs What do the LEDs of the Crocus SHDSL G703 indicate? Do they indicate a fault condition?

Refer to 2.9 - Front panel LED indicators on page 30

messages What messages are displayed in the messages table? This table displays informa-tive and error messages.

Refer to crocusShdslTtRpG703/messages on page 160

status What do the status attributes of the Crocus SHDSL G703 indicate? What is the sta-tus of the different interfaces (up, down, testing, …)?

Refer to 7 - Status attributes on page 155.

performance What do the performance attributes of the Crocus SHDSL G703 indicate? What is the performance of the different interfaces (does the data pass the interface, is the interface up or down, when did it go up or down, …)?

Refer to 8 - Performance attributes on page 187.

alarms What do the alarm attributes of the Crocus SHDSL G703 indicate? What is the alarm status of the different interfaces (link down, errors, …)?

Refer to 9 - Alarm attributes on page 207.



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5.14 Crocus SHDSL G703 compatibility with other SHDSL devices

The Crocus SHDSL G703 can be used in combination with other (OneAccess) SHDSL devices. The doc-ument “Interoperability for OneAccess SHDSL products” (PDF) gives an overview of the interoperability.



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Crocus SHDSL G703

Reference manual

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Reference manual

Crocus SHDSL G703

Reference manual

122


Reference manual Configuration attributes

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6 Configuration attributes

This chapter discusses the configuration attributes of the Crocus SHDSL G703. The following gives an overview of this chapter.

• 6.1 - Configuration attribute overview on page 124• 6.2 - General configuration attributes on page 126• 6.3 - Line configuration attributes on page 131• 6.4 - Line pair configuration attributes on page 145• 6.5 - Repeater and end configuration attributes on page 147• 6.6 - DTE Interface configuration attributes on page 148• 6.7 - Management configuration attributes on page 151



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6.1 Configuration attribute overview

> crocusShdslTtRpG703sysNamesysContactsysLocationsecurityforwardTmaToCtrlPortforwardTmaToLinealarmMaskalarmLevelremoteAlarmMaskAction: Activate ConfigurationAction: Load Saved ConfigurationAction: Load Default ConfigurationAction: Cold Boot

>> linechannelregiontimingModemode1

minLinePairSpeedretrainstartupMargintestDurationasymmetricPsdeocChanneltxEocMessages1

eocHandlingnumExpectedRepeaterslinkAlarmThresholdsmanagementnamealarmMaskalarmLevelremoteAlarmMaskrepeaterAlarmMaskrepeaterAlarmLevelrepeaterLinePairAlarmMaskrepeaterLinePairAlarmLevelendAlarmMaskendAlarmLevelendLinePairAlarmMaskendLinePairAlarmLevel

1. 2P version only



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>>> linePair[ ]2

alarmMaskalarmLevelremoteAlarmMask

>> g703nameframingtimeSlotsclockingcodingcrc4InsertionaisDetectionsqThresholdsqTimejitterAttenuationsaBitsrdlDetecttestsalarmMaskalarmLevel

>> remoteAlarmMaskmanagementcms2AddressconsoleNoTrafficTimeOutctrlPortProtocol

2. in case of a 2P version, two linePair objects are present: linePair[1] and linePair[2]



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6.2 General configuration attributes

This section describes the following configuration attributes:

• crocusShdslTtRpG703/sysName on page 127• crocusShdslTtRpG703/sysContact on page 127• crocusShdslTtRpG703/sysLocation on page 127• crocusShdslTtRpG703/security on page 127• crocusShdslTtRpG703/forwardTmaToCtrlPort on page 128• crocusShdslTtRpG703/forwardTmaToLine on page 128• crocusShdslTtRpG703/<configurationAlarmAttributes> on page 128

This section describes the following actions:

• crocusShdslTtRpG703/Activate Configuration on page 129• crocusShdslTtRpG703/Load Default Configuration on page 129• crocusShdslTtRpG703/Load Saved Configuration on page 130• crocusShdslTtRpG703/Cold Boot on page 130



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crocusShdslTtRpG703/sysName

This is a field where you can assign a name to the Crocus SHDSL G703. The field has a limit of 64 characters.

This is a SNMP MIB2 parameter.

crocusShdslTtRpG703/sysContact

This is a field where you can fill in the name of a contact person together with information on how to contact this person. The field has a limit of 64 characters.


crocusShdslTtRpG703/sysLocation

This is a field where you can fill in the physical location of the Crocus SHDSL G703. The field has a limit of 64 characters.


crocusShdslTtRpG703/security

In order to avoid unauthorised access to the network and the Crocus SHDSL G703, you can create a list of passwords with associated access levels. The security attribute contains the following elements:

Element Description

password The password is a string of maximum 10 characters.

accessRights This attribute represents the access levels assigned to a password. It is a bit string whereof each bit corre-sponds to an access level. The different access levels are:·

• readAccess• writeAccess·• securityAccess• fileSystemAccess• testAccess

Default:<empty>Range: 0 … 64 characters



Default:<empty>Range: table, see below


Default:11111Range: bit string, see below



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The following table shows, for each access level, what you can or can not do:

crocusShdslTtRpG703/forwardTmaToCtrlPort

Enables or disables propagation of management information to the control port. This allows you to cascade management information through the control port towards another OneAccess device.

The forwardTmaToCtrlPort attribute is only present on the TT.

crocusShdslTtRpG703/forwardTmaToLine

Enables or disables propagation of management information to the line.

If forwardTmaToLine is enabled, management data is sent over the line via a dedicated management chan-nel towards the remote remote Crocus SHDSL. To determine which management data is forwarded over the line, refer to crocusShdslTtRpG703/line/management on page 142.

If forwardTmaToLine is disabled, O10 managment data can still be passed over the line : disabling forwardT-maToLine is not enough to avoid management loops.

For more information, refer to 5.10.4 - Forwarding management data to the line and control connector on page 103.

crocusShdslTtRpG703/<configurationAlarmAttributes>

For more information on the configuration alarm attributes alarmMask, alarmLevel, remoteAlarmMask, alarmCon-tactHighMask, alarmContactLowMask and on the alarms in general, refer to 9.2 - Introducing the alarm attributes on page 210.

For more information on the alarms of the crocusShdslTtRpG703 object, refer to 9.3 - General alarms on page 218.

Access level

Read attributes

Change attributes

Read secu-rity attributes1

1. The Crocus SHDSL G703 has the following security attributes:crocusShdslTtRpG703/sysNamecrocusShdslTtRpG703/security

Change security attributes1

Execute actions2

2. Actions are e.g. Cold Boot, testActivation, retrain, etc.

Access file system

readAccess yes no no no no no

writeAccess yes yes no no yes no

securityAccess yes yes yes yes yes no

fileSystemAc-cess

no no no no no yes

testAccess yes3

3. It is possible to see status and performance attributes of the line object that are applicable to modem tests (AL, DL, RDL, ...).

no no no yes4

4. It is possible to execute actions applicable to modem tests (AL, DL, RDL, ...).

no

Default:enabledRange: enabled / disabled




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crocusShdslTtRpG703/Activate Configuration

If you execute this action, the editable non-active configuration becomes the active configuration.

When use this action?

If you configure the Crocus SHDSL G703 using …

• any other maintenance tool than the graphical user interface based TMA (e.g. ATWIN, CLI, Web Interface, EasyConnect terminal, TMA CLI), then execute the Activate Configuration action to acti-vate the configuration after you finished configuring the Crocus SHDSL G703 or after you executed the Load Saved Configuration or Load Default Configuration action.

• TMA, then do not just execute the Activate Configuration action to activate the configuration after you fin-ished configuring the Crocus SHDSL G703, but use the TMA button Send all attributes to device

instead. You can, however, execute the Activate Configuration action after you executed the Load Saved Configuration or Load Default Configuration action.

crocusShdslTtRpG703/Load Default Configuration

If you execute this action, the non-active configuration is overwritten by the default configuration.


If you install the Crocus SHDSL G703 for the first time, all configuration attributes have their default val-ues. If the Crocus SHDSL G703 has already been configured but you want to start from scratch, then use this action to revert to the default configuration.

In case of TMA, click on the TMA button Retrieve all attributes from device after executing the Load Default Configuration action to see the new non-active configuration.



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crocusShdslTtRpG703/Load Saved Configuration

If you execute this action, the non-active configuration is overwritten by the active configuration currently used by the Crocus SHDSL G703.


If you are in the progress of modifying the non-active configuration but made some mistakes, then use this action to revert to the active configuration.

In case of TMA, click on the TMA button Retrieve all attributes from device after executing the Load Default Configuration action to see the new non-active configuration.

crocusShdslTtRpG703/Cold Boot

If you execute this action, the Crocus SHDSL G703 reboots. As a result, the Crocus SHDSL G703 …

• performs a self-test.• checks the software.• reads the saved configuration and restarts program execution.


Use this action, for instance, to activate new application software.



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6.3 Line configuration attributes


• crocusShdslTtRpG703/line/channel on page 132• crocusShdslTtRpG703/line/region on page 132• crocusShdslTtRpG703/line/timingMode on page 133• crocusShdslTtRpG703/line/mode on page 134• crocusShdslTtRpG703/line/minLinePairSpeed on page 135• crocusShdslTtRpG703/line/retrain on page 135• crocusShdslTtRpG703/line/startupMargin on page 138• crocusShdslTtRpG703/line/testDuration on page 138• crocusShdslTtRpG703/line/asymmetricPsd on page 138• crocusShdslTtRpG703/line/eocChannel on page 139• crocusShdslTtRpG703/line/txEocMessages on page 139• crocusShdslTtRpG703/line/eocHandling on page 139• crocusShdslTtRpG703/line/numExpectedRepeaters on page 139• crocusShdslTtRpG703/line/linkAlarmThresholds on page 140• crocusShdslTtRpG703/line/management on page 142• crocusShdslTtRpG703/line/name on page 142• crocusShdslTtRpG703/line/dualPairMode on page 143• crocusShdslTtRpG703/line/<configurationAlarmAttributes> on page 144



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crocusShdslTtRpG703/line/channel

Use the channel attribute to define which modem is the master (central) and which the slave (remote) during the synchronisation procedure of the modems.

The default channel setting of a TT is remote, while that of a CV is central. Therefore there will never be a synchronisation problem when a CV and a TT are used in a regular set-up, the CV at the backbone side and the TT at the customer side.

• If two TTs are used at each end of the data link, make sure to change the channel attribute of one of the TTs into central.

• If two CVs are used at each end of the data link, make sure to change the channel attribute of one of the CVs into remote.


Use the region attribute to set the S-HDSL standard. The region attribute has the following values:

Value Description

annexA The American S-HDSL standard is used.

annexB The European S-HDSL standard is used.

auto The S-HDSL standard is selected automatically.

Default:remote for TT / central for CV

Range: remote / central

Default:autoRange: enumerated, see below



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crocusShdslTtRpG703/line/timingMode

Use the timingMode attribute to set the timing mode. It influences the relation-ship between the line clock and the user interface clock.

Use the timingMode attribute to set the timing mode.

The Crocus SHDSL G703 has two clock sources:

• one takes care of the clocking on the SHDSL line.• one takes care of the clocking on the modular user interface.

Using the timingMode attribute you can define whether these two clocks run independent from each other (i.e. plesiochronous mode) or whether they are "coupled" with each other (i.e. synchronous mode).

The timingMode attribute has the following values:

• You always have to work in the same timing mode at both sides of the link. In other words:- central: synchronous - remote: synchronous → allowed- central: plesiochronous - remote: plesiochronous → allowed- central: synchronous - remote: plesiochronous or vice versa → not allowed

• For compatibility with other SHDSL devices, setting this attribute to the correct value might be essen-tial. Refer to 5.14 - Crocus SHDSL G703 compatibility with other SHDSL devices on page 119

Value Description

plesiochronous In this mode each SHDSL frame has 0 or 4 stuffing bits to compensate clock devi-ations towards the user interface clock. In this mode, all possible clocking modes can be selected.

synchronous In this mode the SHDSL frame does not have stuffing bits to compensate clock deviations towards the user interface clock. In this case only internal and slave receive clocking is allowed. What is more, internal clocking is only allowed at one side of the link (e.g. the central side) and slave receive clocking at the other side (e.g. the remote side).Synchronous mode is the typical timing mode in DSLAM set-ups.

Default:pleisiochronousRange: pleisiochronous / syn-

chronous



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crocusShdslTtRpG703/line/mode

This attribute is only present on a Crocus SHDSL G703 2P (2 pair) version. Use the mode attribute to select between single pair or dual pair operation.

When the mode attribute is changed, the Crocus SHDSL G703 reboots.

When you change the mode attribute, then make sure that you use the correct speed attribute to set the user speed:

If the mode attribute is set to … then use the attribute …

singlePair, speed to configure the user speed.

dualPair, speed2P to configure the user speed.

Default:dualPairRange: singlePair / dualPair



135


Use the minLinePairSpeed attribute to determine what the minimum speed on the line pair has to be when the Crocus SHDSL G703 trains.

For more information on the minimum line pair speed, refer to 5.6 - Config-uring the minimum line speed on page 87.

crocusShdslTtRpG703/line/retrain

Use the retrain attribute to determine when the Crocus SHDSL G703 should retrain.

The retrain criteria

The following criteria determine when to retrain:

Criterion Description

no SHDSL frame synchronisation

When the Crocus SHDSL G703 cannot synchronise on the SHDSL framing, it retrains.

SHDSL frame CRC error threshold exceeded

SHDSL framing sends 166 blocks per second over the line, independently of the speed. Each block has a CRC check. When a certain percentage of frames has a CRC error, the Crocus SHDSL G703 retrains.

signal to noise too low

When the signal to noise ratio becomes too low during a certain period of time, the Crocus SHDSL G703 retrains.

Default:<opt>Range: 192kbps up to

2048kbps (in steps of 64kbps)

Default:-Range: structure, see below



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Configuring the retrain criteria

The retrain structure contains the following elements:

Element Description

enabled Use this element to enable (yes) or disable (no) retrain-ing. So when selecting no, the Crocus SHDSL G703 will never retrain (even not when the line is discon-nected).

errorPersistence-Time

Use this element to set the period, in seconds, during which each criterion is measured. If within this period the predefined criterion value is equalled or exceeded, the Crocus SHDSL G703 retrains.

The errorPersistenceTime functions as a moving window, so it ‘s always the last sec-onds, equal to the errorPersistenceTime, that are used to calculate the average.

errorThreshold Use this element to set the amount of CRC errors, per mille, at which the Crocus SHDSL G703 should retrain. If the amount of CRC errors exceeds this value (measured during the errorPersistenceTime), then the Crocus SHDSL G703 retrains.

Remark

The errored SHDSL frames can be monitored using the performance attribute crocusShdslTtRpG703/line/linePair[ ]/performance/codeViolations.

snrThreshold Use this element to set the signal to noise ratio, in dB, which has to be maintained. If the measured signal to noise ratio drops below this value (measured during the errorPersistenceTime), then the Crocus SHDSL G703 retrains.

If you configured the Crocus SHDSL G703 in …

• a fixed speed, then the Crocus SHDSL G703 tries to retrain again at this fixed speed. If the retrain is successful, then the Crocus SHDSL G703 operates at this fixed speed again. If the retrain is not successful, then the Crocus SHDSL G703 retrains again. If the line conditions are so bad that the fixed speed can no longer be attained, then the Crocus SHDSL G703 keeps retraining.

• auto speed, then the Crocus SHDSL G703 initially tries to retrain at the speed it was trained before. If this does not work, then it tries to train on a lower speed.

Remark

The snrThreshold is only taken into account as a retrain criterion after the line has been in data state for 2 minutes.

Default:yesRange: -

Default:10Range: -1 … 30

Default:10Range: 1 … 300




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Example

Suppose in the retrain structure you set the …

• enabled element to yes.• snrThreshold element to 25 (dB).• stepupMargin element to 3 (dB).

Suppose that at the moment the line entered the data state the measured signal to noise ratio was 27 dB. In that case the stepupThreshold value is 27 dB + 3 dB = 30 dB.

Now, if the signal to noise ratio …

• drops below 25 dB (i.e. the value set using the snrThreshold attribute), then the Crocus SHDSL G703 retrains at a lower speed (because of the deteriorated line conditions).

• exceeds 27 dB (i.e. the stepupThreshold value), then the Crocus SHDSL G703 retrains at a higher speed (because of the improved line conditions).

stepupMargin Use this element to enable or disable the step-up retrain mechanism.

If you set the stepupMargin to a value other than disabled, then the Crocus SHDSL G703 retrains at a higher speed (because of the improved line conditions) when the current signal to noise ratio of the line exceeds the sum of …

• the signal to noise ratio at the moment the line entered the data state (i.e. shortly after a successful training cycle)

+

• the stepupMargin value.

The result of this sum can be seen in the status attribute stepupThreshold.

Remark

Note that the stepupMargin element is only considered when both the central and remote Crocus SHDSL G703 are in auto speed mode.

Element Description

Default:disabledRange: 3 … 15



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crocusShdslTtRpG703/line/startupMargin

Use the startupMargin attribute to define for which signal to noise margin a line speed is selected during the ITU-T G.994.1 auto speed negotiation. The startupMargin attribute is only rel-evant in case both central and remote Crocus SHDSL G703 are set to auto speed mode.

The higher the startupMargin, the lower the selected line speed but the more stable the line will be. The startupMargin attribute has the following values: disabled, 0dB, 1dB, 2dB, 3dB, 4dB, 5dB, 6dB, 7dB, 8dB, 9dB, 10dB. When you set the startupMargin to disabled, the signal to noise margin is not considered during the ITU-T G.994.1 auto speed negotiation. I.e. the complete speed range is available.

crocusShdslTtRpG703/line/testDuration

Use the testDuration attribute to set the time-out period of diagnostic tests.

It is possible to perform diagnostic tests on the Crocus SHDSL G703 (refer to Chapter 12 - Diagnostic tests on page 245). However, these tests cause an interruption of the normal data transfer. Some tests even cause a contact loss between the management system and the remote Crocus SHDSL G703. Therefore, tests are automatically terminated after a time-out period which is specified with the testDuration attribute.

The time-out ranges from 00000d 00h 00m 01s up to 00000d 18h 12m 15s. Entering 00000d 00h 00m 00s disables the time-out period (i.e. diagnostic tests are not terminated after a time-out period).

crocusShdslTtRpG703/line/asymmetricPsd

Use the asymmetricPsd attribute to enable or disable the asymmetrical Power Spectral Density. This feature, described in the SHDSL standard, increases the transmit power for the fixed speeds …

• 768 kbps and 1536 kbps in case of Annex A.• 2048 kbps and 2304 kbps in case of Annex B.

To enable asymmetrical PSD, proceed as follows:

If asymmetricPsd is enabled then the device on which the channel attribute is set to "remote" will even have a slightly higher transmit power, than the device on which the channel attribute is set to "central". When asymmetricPsd is enabled, you should be able to cover a slightly higher distance at the given speeds.

Step Action

1 Select the speed for which you want to enable asymmetrical PSD using the speed(2P) attribute:·

• 768 kbps or 1536 kbps in case of Annex A.·• 2048 kbps or 2304 kbps in case of Annex B.

2 Select the correct regional standard using the region attribute:·

• Annex A in case of a speed of 768 kbps or 1536 kbps.·• Annex B in case of a speed of 2048 kbps or 2304 kbps.

3 Enable asymmetrical PSD by setting the asymmetricPsd attribute to enabled.

Default:2dBRange: enumerated, see below

Default:00000d 00h 03m 00sRange: 00000d 00h 00m 01s-

00000d 18h 12m 15s

Default:disabledRange: enabled / disabled



139

crocusShdslTtRpG703/line/eocChannel

Use the eocChannel attribute to determine how the checksum of Embedded Operations Channel (EOC) messages is calculated. Make sure that on both the central and the remote device the eocChannel attribute is set to the same value.

The eocChannel attribute has the following values:

crocusShdslTtRpG703/line/txEocMessages

This attribute is only present on a Crocus SHDSL G703 2P (2 pair) version. Use the txEocMessages attribute to send EOC messages on both line pair 1 and 2 (bothPairs) or on line pair 1 only (pair1).

crocusShdslTtRpG703/line/eocHandling

SHDSL devices can communicate with each other through the Embedded Operations Channel (EOC). Use the eocHandling attribute to define the handling of the EOC messages.

For more information on EOC handling, refer to 5.2 - Configuring EOC handling on page 57.

crocusShdslTtRpG703/line/numExpectedRepeaters

Use the numExpectedRepeaters attribute to set the number of Crocus SHDSL G703 Repeaters that the Crocus SHDSL G703 can expect to find on the SHDSL line. If the actual number of repeaters does not match the number you entered in the numExpectedRepeaters attribute, then the invalidNumRepeaters alarm is raised.

Value Description

proprietary The checksum is calculated using a proprietary method.

itu-G.991.2 The checksum is calculated using the G.SHDSL standard method.

Default:itu-G.991.2Range: proprietary / itu-

G.991.2

Default:bothPairsRange: pair1 / bothPairs

Default:noneRange: enumerated, see below




140

crocusShdslTtRpG703/line/linkAlarmThresholds

Use the linkAlarmThresholds attribute to set the alarm threshold values of the most important line parameters. If this predefined threshold value is exceeded, then a corresponding alarm is generated.

The linkAlarmThresholds structure contains the following elements:

Element Description

lineAttenuation Use this element to set the alarm threshold value of the line attenuation in dB. If the line attenuation …

• exceeds this value during at least 10 seconds, then the lineAttenuation alarm is raised.

• drops below this value during at least 10 seconds, then the lineAttenuation alarm is cleared.

Remark

Note that if you set the eocHandling attribute to alarmConfiguration, then the central SHDSL device forces the remote SHDSL device and any intermediary repeater to use the link alarm thresholds lineAttenuation and signalNoise as configured on the cen-tral device. In other words, the settings of the lineAttenuation and signalNoise on the central device overrule those of the remote device and repeaters.

signalNoise Use this element to set the alarm threshold value of the signal noise in dB. If the signal noise …

• exceeds this value during at least 10 seconds, then the signalNoise alarm is raised.

• drops below this value during at least 10 seconds, then the signalNoise alarm is cleared.

Remark

Note that if you set the eocHandling attribute to alarmConfiguration, then the central1 SHDSL device forces the remote2 SHDSL device and any intermediary repeater to use the link alarm thresholds lineAttenuation and signalNoise as configured on the central device. In other words, the settings of the lineAttenuation and signalNoise on the central device overrule those of the remote device and repeaters.

Default:-Range: structure, see below



141

errSecRatio-Exceeded

Use this element to set the alarm threshold value of the errored seconds ratio. The errored seconds ratio is the ratio of errored seconds to total seconds during a 15 minute time interval. So if the errored seconds ratio …

• exceeds this value within a 15 minute period3, then the errSecRatioExceeded alarm is raised.

• drops below this value within a 15 minute period, then the errSecRatioExceeded alarm is cleared.

sevErrSecRatio-Exceeded

Use this element to set the alarm threshold value of the severely errored seconds ratio. The severely errored seconds ratio is the ratio of severely errored seconds to total seconds during a 15 minute interval. So if the severely errored seconds ratio …

• exceeds this value within a 15 minute period3, then the sevErrSecRatioExceeded alarm is raised.

• drops below this value within a 15 minute period, then the sevErrSecRatioExceeded alarm is cleared.

bBErrRatio-Exceeded

Use this element to set the alarm threshold value of the background block error ratio. The background block error ratio is the ratio of background block errors to total blocks during a 15 minute time interval. The count of total blocks excludes all blocks during severely errored seconds. So if the background block error ratio …

• exceeds this value within a 15 minute period3, then the bBErrRatioExceeded alarm is raised.

• drops below this value within a 15 minute period, then the bBErrRatioExceeded alarm is cleared.

1. The central device is the device on which the channel attribute is set to central.2. The remote device is the device on which the channel attribute is set to remote.3. The 15 minute periods run synchronous with the 2 hour periods of the line/h2Line performance

attribute. Because alarms are raised or cleared within 15 minute periods, there is a delay in the alarm status. For example, suppose that in the first minute of a 15 minute period the errSecRa-tioExceeded value is exceeded, then the errSecRatioExceeded alarm is raised when the full 15 minute period has passed. The alarm is only cleared if in the next 15 minute period the errSe-cRatioExceeded value is not exceeded.

Element Description



142

crocusShdslTtRpG703/line/management

Use the management attribute to determine whether and which management data is forwarded over the line (also refer to crocusShdslTtRpG703/forwardTmaToLine on page 128 to enable or disable propagation of management information to the line).

The management attribute has the following possible values:

crocusShdslTtRpG703/line/name

Use the name attribute to assign a name to the line.

Value Description

transparent No management data is forwarded over the SHDSL line. The data is passed trans-parently over the line.

o10Management This forwards the proprietary OneAccess O10 protocol over the SHDSL line. This allows you to manage the remote SHDSL device (and possibly other OneAccess devices connected to the SHDSL device).

pathManagement This forwards path management information over the SHDSL line. This allows you to manage complete paths instead of managing individual devices (i.e. ele-ments).For more information on path management, refer to the TMA Path Man-agement manual.

o10-PathManage-ment

This forwards both the proprietary OneAccess O10 protocol as the path manage-ment information over the SHDSL line.

Default:o10-PathManagementRange: enumerated, see below

Default:<empty>Range: 0 ... 24 characters



143

crocusShdslTtRpG703/line/dualPairMode

This attribute is only present on the Crocus SHDSL G703 2 pair version.

If the mode attribute is set to dualPair, then use the dualPairMode attribute to set the dual pair operation mode. The dualPairMode attribute has the following possible values:

If you have two Crocus SHDSL G703s connected to each other in a point-to-point set-up, then make sure that you set the dualPairMode attribute to the same value at both sides!

Value Description

standard The dual pair SHDSL line operates strictly as described in the SHDSL standard. If the Crocus SHDSL G703 is connected to a remote device that operates strictly according to the SHDSL standard, then select the standard value.

enhanced The dual pair SHDSL line operates slightly different than described in the SHDSL standard (some enhancements are present). If you select the enhanced value, then it is possible that you experience problems when connecting to third party SHDSL devices. In that case, select the standard value.

Default:enhancedRange: standard/enhanced



144

crocusShdslTtRpG703/line/<configurationAlarmAttributes>

Use the alarm related configuration attributes to configure the alarm behaviour of …

• the line object (use alarmMask, alarmLevel, remoteAlarmMask, alarmContactHighMask and alarmContactLowMask).• the repeater object (use repeaterAlarmMask, repeaterAlarmLevel, repeaterLinePairAlarmMask and repeaterLinePa-

irAlarmLevel).• the end object (use endAlarmMask, endAlarmLevel, endLinePairAlarmMask and endLinePairAlarmLevel).


• the alarm configuration attributes and on the alarms in general, refer to 9.2 - Introducing the alarm attributes on page 210.

• the alarms of the line object, refer to 9.4 - Line alarms on page 221.• the alarms of the repeater object, refer to 9.6 - Repeater and end alarms on page 226.• the alarms of the end object, refer to 9.6 - Repeater and end alarms on page 226.



145

6.4 Line pair configuration attributes


• crocusShdslTtRpG703/line/linePair[ ]/<configurationAlarmAttributes> on page 146

In case of a Crocus SHDSL G703 2P, two linePair objects are present: linePair [1] and linePair [2].



146

crocusShdslTtRpG703/line/linePair[ ]/<configurationAlarmAttributes>


For more information on the alarms of the linePair[ ] object, refer to 9.5 - Line pair alarms on page 223.



147

6.5 Repeater and end configuration attributes

The repeater[ ] and the end objects are not present in the containment tree by default. They are added automatically when you configure the eocHandling attribute. Refer to 5.2 - Configuring EOC handling on page 57.

crocusShdsl/repeater[ ]/<configurationAlarmAttributes>

crocusShdsl/end[ ]/<configurationAlarmAttributes>

For more information on the configuration alarm attributes alarmMask and alarmLevel and on the alarms in general, refer to 9.2 - Introducing the alarm attributes on page 210.

For more information on the alarms of the repeater[ ] and end[ ] object, refer to 9.6 - Repeater and end alarms on page 226.



148

6.6 DTE Interface configuration attributes

-This section describes the following configuration attributes:

• crocusShdslTtRpG703/g703/timeSlots on page 149• crocusShdslTtRpG703/g703/coding on page 149• crocusShdslTtRpG703/g703/aisDetection on page 149• crocusShdslTtRpG703/g703/sqThreshold on page 149• crocusShdslTtRpG703/g703/sqTime on page 149• crocusShdslTtRpG703/g703/name on page 150• crocusShdslTtRpG703/g703/clocking on page 150• crocusShdslTtRpG703/g703/rdlDetect on page 150• crocusShdslTtRpG703/g703/<configurationAlarmAttributes> on page 150



149


This attribute is only present on a G703 Nx64k interface.

Use the timeSlots attribute to enable or disable the individual 64 kbps time slots in the framed data stream.

Important remark

• Do not enable time slot 0 in the local Crocus SHDSL G703 and a non-G703 interface in the remote Crocus SHDSL G703.

• In case you use a G703 interface in one Crocus SHDSL and a serial interface is the other Crocus SHDSL, then the auto speed only works when more than 2 time slots (in case of a Crocus SHDSL 1 pair version) or 4 time slots (in case of a Crocus SHDSL 2 pair version) are selected.

For more information, refer to 5.7 - Configuring framing and time slots on page 93.

crocusShdslTtRpG703/g703/coding

Use the coding attribute to set the G703 interface encoding mode. Possible values are:

crocusShdslTtRpG703/g703/aisDetection

Use this attribute to enable or disable the detection of the Alarm Indication Sig-nal.

crocusShdslTtRpG703/g703/sqThreshold

Use this attribute to set the signal quality threshold. This is the number of errored seconds for which a signal quality alarm is generated.

If the sqThreshold value, i.e. the number of errored seconds, is exceeded within the sqTime, then a signal quality (sq) alarm is generated. For example, if 10 (default) or more errored seconds occur within 1 minute (default), then a signal quality alarm is generated.

The sqThreshold value ranges from 0 up to 65535.

crocusShdslTtRpG703/g703/sqTime

Use this attribute to set the signal quality time. This is the period (in days, hours, minutes and seconds) during which the signal quality threshold is measured.

Value Description

ami Alternate Mark Inversion is selected. This is a bipolar code with no zero substitu-tion.

hdb3 High Density Bipolar 3 is selected. This is a modified bipolar code.With HDB3 encoding, more than three consecutive zeroes occurring in the data are replaced by a substitution word. This to ensure a high pulse density. Therefore, data links using the HDB3 code can carry data patterns with a low 1 density. Most of the G703 applications use HDB3 encoding.

Default:ts0=1, other ts=0Range: enumerated, see below

Default:hdb3Range: ami / hdb3



Default:00000d 00h 01m 00sRange: 00000d 00h 00m 00s -

24855d 03h 14m 07s



150

If the sqThreshold value, i.e. the number of errored seconds, is exceeded within the sqTime, then a signal quality (sq) alarm is generated. For example, if 10 (default) or more errored seconds occur within 1 minute (default), then a signal quality alarm is generated.

The sqTime value ranges from 00000d 00h 00m 00s up to 24855d 03h 14m 07s.

crocusShdslTtRpG703/g703/name

Use the name attribute to assign an administrative name to the DTE inter-face.

crocusShdslTtRpG703/g703/clocking

Use the clocking attribute to select a clocking mode.

For more information, refer to 5.5 - Configuring the clocking mode on page 82.

crocusShdslTtRpG703/g703/rdlDetect

When set to disabled, this attribute prevents that a digital loop can be per-formed by a remote Crocus SHDSL G703 on the local Crocus SHDSL G703.

When rdlDetect is disabled, and a remote Crocus SHDSL G703 initiates an RDL test, the local Crocus SHDSL G703 will not go in digital loop. However, the DTE interface of the remote Crocus SHDSL G703 will be clamped and data transfer is interrupted.

crocusShdslTtRpG703/g703/<configurationAlarmAttributes>


For more information on the alarms of the <dteInterface> object, refer to 9.7 - Interface alarms on page 229.


Default:externalRange: external / internal




151

6.7 Management configuration attributes


• crocusShdslTtRpG703/management/cms2Address on page 152• crocusShdslTtRpG703/management/consoleNoTrafficTimeOut on page 152• crocusShdslTtRpG703/management/ctrlPortProtocol on page 153

Also refer to 5.10.1 - Rules of thumb and remarks concerning management on page 100 for important rules of thumb regading management.



152

crocusShdslTtRpG703/management/cms2Address

Use the cms2Address attribute to configure an absolute address in the Crocus SHDSL G703. The absolute addressing range goes from 1 up to 65535. This address can then be used to connect with TMA. Refer to 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42.

If you want to connect with TMA using relative addressing, you do not have to configure anything. In that case you can leave the cms2Address attribute at its default value, being 0.

Refer to 5.10.2 - Using relative or absolute addressing on page 101 for more information on relative and absolute addressing.

crocusShdslTtRpG703/management/consoleNoTrafficTimeOut

You can open a TMA, CLI or ATWIN session on the Crocus SHDSL G703 through the control connector. These sessions close automatically if there is no user interaction during a certain time-out period. This time-out period can be set with the conso-leNoTrafficTimeOut attribute.

The purpose of such a timer is to protect the Crocus SHDSL G703 against unauthorised access in case the last user did not close his session.

The consoleNoTrafficTimeOut value ranges from 00000d 00h 00m 00s up to 24855d 03h 14m 07s.


Default:00000d 00h 30m00sRange: 00000d 00h 30m …

24855d 03h 14m 07s



153

crocusShdslTtRpG703/management/ctrlPortProtocol

The setting of the ctrlPortProtocol attribute depends on what you connect to the control connector of the Crocus SHDSL G703. This is explained in the following table:

Value Description

management Select this value if you want to connect the control connector of the Crocus SHDSL G703 to …

• a management concentrator (e.g. the Orchid 1003 LAN or 1035 Orchid) for management purposes.

• the control connector of another OneAccess device using a crossed cable (i.e. back-to-back) in order to create an extended management link. For more infor-mation on extended management links, refer to Relative addressing on page 101 and Forwarding management information on page 103).

When connecting the control connector of the Crocus SHDSL G703 to a COM port of your computer, you can still open a TMA session on the Crocus SHDSL G703. However, you can not open a CLI or ATWIN session.

console Select this value if you want to connect the control connector of the Crocus SHDSL G703 to a COM port of your computer in order to manage the Crocus SHDSL G703 locally using TMA, CLI or ATWIN.

Default:consoleRange: management / console



154


Reference manual Status attributes

155

7 Status attributes

This chapter discusses the status attributes of the Crocus SHDSL G703. The following gives an overview of this chapter.

• 7.1 - Status attribute overview on page 156• 7.2 - General status attributes on page 159• 7.3 - Line status attributes on page 163• 7.4 - Line pair status attributes on page 172• 7.5 - Repeater and end status attributes on page 175• 7.6 - DTE Interface status attributes on page 180• 7.7 - Operating system status attributes on page 184



156

7.1 Status attribute overview

> crocusShdslTtRpG703sysDescrsysObjectIDsysUpTimesysServicesmessagesdeviceIdconfigurationSavingbootVersionloaderVersionflash1VersionpowerSourceAction: Cold Boot

>> lineifDescrifTypeifSpeedifOperStatusminLinePairSpeedmaxLinePairSpeedframerTypetestTypetestOriginatortestStatusmaxSpeedSearchmaxSpeedResulterrorCountregionasymmetricPsdlinePairsSwapped1

numDiscoveredRepeaterseocAlarmThresholdsAction: clearErrorCounterAction: maximumSpeedSearch

1. 2P version only



157

>>> linePair[ ]2

ifSpeedifOperStatusstatustimeSinceLastRetraintransmitPowerlineAttenuationsignalNoisestepupThresholdactualBitRate

>> repeater[ ]3

vendorIdvendorModelvendorSerialvendorSoftVersioneocSoftVersionshdslVersioneocStateeocAlarmThresholdsAction: loopbackActivation

>>> networkLinePair[ ]2

lineAttenuationsignalNoise

>>> customerLinePair[ ]2


>> end3

vendorIdvendorModelvendorSerialvendorSoftVersioneocSoftVersionshdslVersioneocStateeocAlarmThresholds

>>> linePair[ ]2


2. in case of a 2P version, two linePair objects are present: linePair[1] and linePair[2].3. not present by default, is added automatically when setting the line/eocHandling attribute.



158

>> g7034

timeslots5

txdItu103rxdItu104losaislfa5

rai5

ifDescrifTypeifSpeedifClockingifOperStatus

>> operatingSystemtaskInfo

4. Crocus SHDSL G703 only5. G703 Nx64 only



159

7.2 General status attributes

This section describes the following status attributes:

• crocusShdslTtRpG703/sysDescr on page 160• crocusShdslTtRpG703/sysObjectID on page 160• crocusShdslTtRpG703/sysUpTime on page 160• crocusShdslTtRpG703/sysServices on page 160• crocusShdslTtRpG703/messages on page 160• crocusShdslTtRpG703/deviceId on page 161• crocusShdslTtRpG703/configurationSaving on page 161• crocusShdslTtRpG703/bootVersion on page 161• crocusShdslTtRpG703/loaderVersion on page 161• crocusShdslTtRpG703/flash1Version on page 162• crocusShdslTtRpG703/powerSource on page 162


• crocusShdslTtRpG703/Cold Boot on page 162



160

crocusShdslTtRpG703/sysDescr

This is a textual description of the device. This is an SNMP MIB2 parameter.

Example: OneAccess Crocus SHDSL TT V35 T1234/00100 01/01/00 12:00. In this example the following parame-ters are visible:

• OneAccess Crocus SHDSL is the modem type• TT is the modem version• V35 is the interface type• T1234/00100 is the application software code and version• 01/01/00 12:00 is the application software release date and time.

crocusShdslTtRpG703/sysObjectID

This is the SNMP identification string. It is an SNMP MIB2 parameter.

Example: 1.3.6.1.4.1.776.22.

crocusShdslTtRpG703/sysUpTime

This is the elapsed time since last power-on or cold boot of the Crocus SHDSL G703.

Example: 00005d 02h 42m 15s, which means 5 days, 2 hours, 42 minutes and 15 seconds.

crocusShdslTtRpG703/sysServices

This is the SNMP service identification. It is an SNMP MIB2 parameter.

crocusShdslTtRpG703/messages

This table displays informative and error messages, e.g. Reconfigured, Cold Boot, … The messages table displays maximum 20 messages.

If no TMA, CLI or ATWIN session is established through the control connector, then the messages are also sent to the control connector. This means that if you open a terminal emulation session on the con-trol connector, you can monitor these messages. If you hit the ENTER key, the messages stop and you get a password prompt (CLI mode).



161

crocusShdslTtRpG703/deviceId

This displays a unique code. This code is programmed into the Crocus SHDSL G703before it leaves the factory. You can use this code for inventory purposes.

crocusShdslTtRpG703/configurationSaving

This attribute indicates when the Crocus SHDSL G703 is writing its (new) configuration to the flash mem-ory.

crocusShdslTtRpG703/bootVersion

This displays the code and version of the boot software currently used in the Crocus SHDSL G703. For more information on boot software, refer to 11.1 - What is boot, loader and application software? on page 236.

Example: Txxxx/xxxxx 01/01/00 12:00. In this example the following parameters are visible:

• Txxxx is the boot software code for this device• /xxxxx is the boot software version• 01/01/00 is the boot software release date• 12:00 is the boot software release time.

crocusShdslTtRpG703/loaderVersion

This displays the code and version of the loader software currently used in the Crocus SHDSL G703. For more information on loader software, refer to 11.1 - What is boot, loader and application software? on page 236.


• Txxxx is the loader software code for this device• /xxxxx is the loader software version• 01/01/00 is the loader software release date• 12:00 is the loader software release time.

Value Description

busy The Crocus SHDSL G703 is busy writing its configuration to the flash memory. During this state, do not power-down or reboot the Crocus SHDSL G703 else the new configuration will be lost.

done The Crocus SHDSL G703 has finished writing its configuration to the flash mem-ory.



162

crocusShdslTtRpG703/flash1Version

This displays the code and version of the application software, also called firmware, currently used in the Crocus SHDSL G703. For more information on application software, refer to 11.1 - What is boot, loader and application software? on page 236.


• Txxxx is the application software code for this device• /xxxxx is the application software version• 01/01/00 is the application software release date• 12:00 is the application software release time.

crocusShdslTtRpG703/powerSource

This attribute displays how the Crocus SHDSL G703 is powered.


This action will reboot the Crocus SHDSL G703 while the power stays up (the Crocus SHDSL G703 also reboots if it is powered down and up again).



163

7.3 Line status attributes


• crocusShdslTtRpG703/line/ifDescr on page 164• crocusShdslTtRpG703/line/ifType on page 164• crocusShdslTtRpG703/line/ifSpeed on page 164• crocusShdslTtRpG703/line/ifOperStatus on page 164• crocusShdslTtRpG703/line/minLinePairSpeed on page 164• crocusShdslTtRpG703/line/maxLinePairSpeed on page 165• crocusShdslTtRpG703/line/framerType on page 166• crocusShdslTtRpG703/line/testType on page 166• crocusShdslTtRpG703/line/testOriginator on page 167• crocusShdslTtRpG703/line/testStatus on page 167• crocusShdslTtRpG703/line/maxSpeedSearch on page 168• crocusShdslTtRpG703/line/maxSpeedResult on page 168• crocusShdslTtRpG703/line/errorCount on page 169• crocusShdslTtRpG703/line/region on page 169• crocusShdslTtRpG703/line/asymmetricPsd on page 169• crocusShdslTtRpG703/line/linePairsSwapped on page 169• crocusShdslTtRpG703/line/numDiscoveredRepeaters on page 169• crocusShdslTtRpG703/line/eocAlarmThresholds on page 170


• crocusShdslTtRpG703/line/clearErrorCounter on page 170• crocusShdslTtRpG703/line/maximumSpeedSearch on page 171



164

crocusShdslTtRpG703/line/ifDescr

This attribute displays the interface description. It is an SNMP MIB2 parameter.

The ifDescr value for the line object is line.

crocusShdslTtRpG703/line/ifType

This attribute displays the interface type. It is an SNMP MIB2 parameter.

The ifType value for the line object is other.

crocusShdslTtRpG703/line/ifSpeed

This attribute displays the current line speed in bits per second (bps), e.g. 2048000.

crocusShdslTtRpG703/line/ifOperStatus

This attribute displays the current operation status of the line. Possible operation status values are:


This attribute displays the minimum line pair speed. The value depends on how the user speed and/or the minimum line pair speed are configured. Refer to What do the minLinePairSpeed and maxLinePairSpeed status attributes display? on page 165 for more information.

Value Description

up The line is up, data transfer is possible.

down The line is down, data transfer is not possible.

testing A test is active. For more information on type, originator and status of the test refer to the line status attributes testType, testOriginator and testStatus.



165

crocusShdslTtRpG703/line/maxLinePairSpeed

This attribute displays the maximum line pair speed. The value depends on how the user speed and/or the minimum line pair speed are configured. Refer to What do the minLinePairSpeed and maxLinePairSpeed status attributes display? for more information.

What do the minLinePairSpeed and maxLinePairSpeed status attributes display?

What is config-ured?

Description

user speed (fixed)

In case you configure a fixed user speed (i.e. you set the configuration attribute speed(2P) to a fixed value), then the line trains at the fixed user speed.So in this case, the status attribute minLinePairSpeed displays a speed that is equal to the fixed user speed (or half the fixed user speed in case of a 2P version). What is more, the status attributes minLinePairSpeed and maxLinePairSpeed display the same speed.

user speed (auto)

In case you configure an auto user speed (i.e. you set the configuration attribute speed(2P) to auto), then during the training cycle the lowest and highest possible line speed is determined. Then the line trains at the highest possible speed and this becomes the user speed.So in this case, the status attribute minLinePairSpeed dis-plays the lowest possible speed that could be achieved on the line pair(s) during the training cycle. The status attribute maxLinePairSpeed displays the highest possi-ble speed that could be achieved on the line pair(s) during the training cycle.

user speed (fixed) + line speed

In case you configure a fixed user speed (i.e. you set the configuration attribute speed(2P) to a fixed value) and a minimum line pair speed (using the configuration attribute minLinePairSpeed) and the user speed is lower than the line speed, then the line trains at the configured line speed.So in this case, the status attribute min-LinePairSpeed displays a speed that is equal to the configured minimum line pair speed. What is more, the status attributes minLinePairSpeed and maxLinePairSpeed dis-play the same speed.

Remark

Note that this only applies when the configured user speed is lower than the con-figured line speed. In case the configured user speed is higher than the configured line speed, the user speed (fixed) situation applies. See above.

user speed (auto) + line speed

In case you configure an auto user speed (i.e. you set the configuration attribute speed(2P) to auto) and a minimum line pair speed (using the configuration attribute minLinePairSpeed), then during the training cycle the lowest (which is the minimum line pair speed) and highest possible line speed is determined. Then the line trains at the highest possible speed and this becomes the user speed.So in this case, the status attribute minLinePairSpeed displays a speed that is equal to the configured minimum line pair speed. The status attribute maxLinePairSpeed displays the highest possible speed that could be achieved on the line pair(s) during the training cycle.



166

crocusShdslTtRpG703/line/framerType

This attribute displays which type of framing is used on the SHDSL line: Nx64 or slotted E1.

The line of the Crocus SHDSL G703 can operate in two modes: Nx64 or slotted E1. These modes are not directly user configurable (i.e. there is no attribute with which you can select these modes), but depending on which interface is used, which user/line speed is chosen, etc. the Crocus SHDSL G703 will select one of these modes.

crocusShdslTtRpG703/line/testType

This attribute displays which test is currently active. The possible indications are:

Mode Description

Nx64 In this mode the data on the SHDSL line is a continuous bit stream with a speed of N x 64 kbps, where N ranges from 1 up to 36 (or from 2 up to 72 in case of a Crocus SHDSL G703 2 pair version). So the line speed ranges from 64 kbps up to 2304 kbps (or 128 kbps up to 4608 kbps in case of a Crocus SHDSL G703 2 pair version).

slotted E1 In this mode the data on the SHDSL line is put in N x 64 kbps time slots (similar to framed data on a G.703 interface), where N ranges from 3 up to 32 (or from 6 up to 64 in case of a Crocus SHDSL G703 2 pair version). So the line speed ranges from 192 kbps up to 2048 kbps (or 384 kbps up to 4096 kbps in case of a Crocus SHDSL G703 2 pair version).

Value Description

no No test is active.

al An analogue loop is active.

dl A digital loop is active.

rdl A remote digital loop is active.

et The error test pattern generator / detector is active.

alEt An analogue loop in combination with an error test is active.

rdlEt A remote digital loop in combination with an error test is active.



167

crocusShdslTtRpG703/line/testOriginator

This attribute displays the origin of the active test. The possible indications are:

crocusShdslTtRpG703/line/testStatus

This attribute displays the status of the active test. The possible indications are:

Value Description

nms The test is initiated by the management system (e.g. TMA).

interface The test is initiated by the application, via the interface.

remote The test is initiated by the remote Crocus SHDSL G703.

unknown There are two possibilities:

• No test is running.• For some reason it is not possible to define the origin of the test.

Value Description

progressing The test is starting.

running The test is running.

ending The test is ending.

unknown There are two possibilities:

• No test is running.• For some reason it is not possible to retrieve the status of the test.



168

crocusShdslTtRpG703/line/maxSpeedSearch

This attribute shows the status of the maximumSpeedSearch action: refer to crocusShdslTtRpG703/line/maximum-SpeedSearch on page 171. The possible indications are:

crocusShdslTtRpG703/line/maxSpeedResult

This attribute displays the maximum speed that was achieved during the execution of the maximumSpeed-Search action: refer to crocusShdslTtRpG703/line/maximumSpeedSearch on page 171.

Value Description

idle No maximumSpeedSearch action has been performed.

progressing The maximumSpeedSearch action is running.

aborted The maximumSpeedSearch action stopped without result.

completed The maximumSpeedSearch action is finished. The result is displayed in the maxSpeed-Result attribute.



169

crocusShdslTtRpG703/line/errorCount

This attribute displays the amount of detected errors since the start of an ET, AL-ET or RDL-ET test. Every time a new ET, AL-ET or RDL-ET is started, the errorCount attribute is reset to 0.


This attribute displays how you configured the region configuration attribute (annexA, annexB or auto).

crocusShdslTtRpG703/line/asymmetricPsd

This attribute displays whether asymmetric PSD is currently active or not.

crocusShdslTtRpG703/line/linePairsSwapped

This attribute is only present on the Crocus SHDSL G703 2P version.

This attribute indicates whether the 2 line pairs have been swapped when connecting the central with the remote device. Possible values are:

crocusShdslTtRpG703/line/numDiscoveredRepeaters

This attribute displays the number of Crocus SHDSL G703 Repeaters that the Crocus SHDSL G703 dis-covered on the SHDSL line.

Value Description

yes The line pairs are swapped.

no The line pairs are not swapped.

unknown The Crocus SHDSL G703 is unable to determine whether the line pairs have been swapped (e.g. because it is still training).



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crocusShdslTtRpG703/line/eocAlarmThresholds

This attribute displays the value of the lineAttenuation and signalNoise elements as set in configuration attribute crocusShdslTtRpG703/line/linkAlarmThresholds.

However, when the configuration attribute crocusShdslTtRpG703/line/eocHandling of the central device in the link has been set to alarmConfiguration, the central device will impose its values of lineAttenuation and signal-Noise elements on the other devices in the link, as described in 5.2.2 - The EOC handling attribute on page 59. The eocAlarmTresholds attribute will then display the values of the lineAttenuation and signalNoise ele-ments of the central device in the link.

The eocAlarmThresholds structure contains the following elements:

• lineAttenuation• signalNoise

crocusShdslTtRpG703/line/clearErrorCounter

Use this action to clear the value of the errorCount attribute. This could be useful, for example, to reset the error counter after the unstable period (in which errors occur anyhow) shortly after the initiation of a test.

Double click on the clearErrorCounter string to execute the action.



171

crocusShdslTtRpG703/line/maximumSpeedSearch

Use this action to determine the highest possible line speed that can be achieved between the central and remote Crocus SHDSL G703. Double click on the maximumSpeedSearch string to execute the action.

When you execute this test, the following happens:

• The Crocus SHDSL G703 has to be in data state (i.e. after a successful training sequence and when the data connection is up) before you can execute the maximumSpeedSearch action.

• While the maximumSpeedSearch action is running, no data transmission is possible.

Phase Action

1 The Crocus SHDSL G703 interrupts the normal data transfer.

2 Both local and remote Crocus SHDSL G703 go to auto speed mode in order to determine the highest possible line speed. Meanwhile, the status of the test can be monitored with the maxSpeedSearch attribute.

3 When the test ends, the result is displayed by the maxSpeedResult attribute.

4 The Crocus SHDSL G703 resumes normal data transfer at the speed that was selected before the test.



172

7.4 Line pair status attributes


• crocusShdslTtRpG703/line/linePair[ ]/ifSpeed on page 173• crocusShdslTtRpG703/line/linePair[ ]/ifOperStatus on page 173• crocusShdslTtRpG703/line/linePair[ ]/status on page 173• crocusShdslTtRpG703/line/linePair[ ]/timeSinceLastRetrain on page 173• crocusShdslTtRpG703/line/linePair[ ]/transmitPower on page 174• crocusShdslTtRpG703/line/linePair[ ]/lineAttenuation on page 174• crocusShdslTtRpG703/line/linePair[ ]/signalNoise on page 174• crocusShdslTtRpG703/line/linePair[ ]/stepupThreshold on page 174• crocusShdslTtRpG703/line/linePair[ ]/actualBitRate on page 174




173

crocusShdslTtRpG703/line/linePair[ ]/ifSpeed

This attribute displays the line pair speed, in bits per second (bps), when the line pair is in data state.

crocusShdslTtRpG703/line/linePair[ ]/ifOperStatus

This attribute displays the current operation status of the line. The possible indications are:

crocusShdslTtRpG703/line/linePair[ ]/status

This attribute displays the bit-pump its training state machine stages. It shows the progress of the training sequence. The most important indications are:

crocusShdslTtRpG703/line/linePair[ ]/timeSinceLastRetrain

This attribute displays the time the line is in data state since the last retrain cycle.

Value Description

up The line is up, data transfer is possible.

down The line is down, data transfer is not possible.

testing A test is active. For more information on type, originator and status of the test refer to the line status attributes testType, testOriginator and testStatus.

Value Description

idle No data connection is present. This is the initial state.

dataState A data connection is present. The training sequence was successful and the bit-pumps are ready to transmit data.



174

crocusShdslTtRpG703/line/linePair[ ]/transmitPower

This attribute displays the current transmit power in dB, e.g. 7.5.

crocusShdslTtRpG703/line/linePair[ ]/lineAttenuation

This attribute displays the current line attenuation in dB, e.g. 11.0.

crocusShdslTtRpG703/line/linePair[ ]/signalNoise

This attribute displays the current signal to noise ratio of the line in dB, e.g. 2.5.

The status attributes transmitPower, lineAttenuation and signalNoise do not display meaningful information when the line is in analogue loop (AL) or when it is not trained. These attributes are only relevant for a trained line.

crocusShdslTtRpG703/line/linePair[ ]/stepupThreshold

This attribute displays the step-up threshold in dB.

If step-up retraining is enabled (i.e. the stepupMargin element in the line/retrain configuration structure is set to any value other than disabled), then the Crocus SHDSL G703 will retrain at a higher speed if the meas-ured signal to noise ratio exceeds the step-up threshold value.

The stepupThreshold value =

• the signal to noise ratio at the moment the line entered the data state (i.e. shortly after a successful training cycle)

+

• the stepupMargin value.

Refer to crocusShdslTtRpG703/line/retrain on page 135 for more information.

If the stepupThreshold attribute displays 0.0, then this means that step-up retraining is disabled (i.e. the stepupMargin element in the line/retrain configuration is set to disabled).

crocusShdslTtRpG703/line/linePair[ ]/actualBitRate

This attribute displays the maximum speed, in bits per second (bps), that could be negotiated on the line pair during the training sequence.

The actualBitRate can be higher than the ifSpeed, eg. if the minLinePairSpeed is enabled.



175

7.5 Repeater and end status attributes


• crocusShdslTtRpG703/end/vendorId on page 176• crocusShdslTtRpG703/end/vendorModel on page 176• crocusShdslTtRpG703/end/vendorSerial on page 176• crocusShdslTtRpG703/end/vendorSoftVersion on page 176• crocusShdslTtRpG703/end/eocSoftVersion on page 177• crocusShdslTtRpG703/end/shdslVersion on page 177• crocusShdslTtRpG703/end/eocState on page 177• crocusShdslTtRpG703/end/eocAlarmThresholds on page 178• crocusShdslTtRpG703/end/linePair[ ]/lineAttenuation on page 179• crocusShdslTtRpG703/end/linePair[ ]/signalNoise on page 179


• crocusShdslTtRpG703/repeater/loopbackActivation on page 179

• The repeater[ ] and the end objects are not present in the containment tree by default. They are added automatically when you configure the eocHandling attribute. Refer to 5.2 - Configuring EOC handling on page 57.

• Exactly which information is retrieved from the remote SHDSL device(s) through the EOC channel depends on the setting of the eocHandling attribute. Refer to 5.2.4 - EOC retrieved information on page 60.

• The repeater[ ] and end objects contain the same attributes, therefore only the attributes of the end object are listed here.

• When the Crocus SHDSL G703 is configured for 1 pair operation, the repeater[ ] and end[ ] objects net-workLinePair[2] and customerLinePair[2] still appear in the containment tree (although 1 pair operation has been configured).



176

crocusShdslTtRpG703/end/vendorId

This attribute is only retrieved in case the eocHandling attribute is set to discovery, inventory, info or alarmCon-figuration.

This attribute displays information about the vendor of the repeater or end device. The vendorId structure contains the following elements:

• countryCode E.g. 65295 for Belgium.• providerCode E.g. TLS_ for OneAccess.• vendorSpecific

crocusShdslTtRpG703/end/vendorModel

This attribute is only retrieved in case the eocHandling attribute is set to inventory, info or alarmConfiguration.

This attribute displays the model of the repeater or end device. E.g. SHDSL TT 2P for a Crocus SHDSL Table Top 2 pair version.

crocusShdslTtRpG703/end/vendorSerial


This attribute displays the serial number of the repeater or end device. For a OneAccess devices this is the deviceId attribute.

crocusShdslTtRpG703/end/vendorSoftVersion


This attribute displays the version of the firmware used on the repeater or end device. For a OneAccess device this is the part after "/" of the T-code string displayed in the flashVersion attribute.



177

crocusShdslTtRpG703/end/eocSoftVersion


This attribute displays the EOC software version used on the repeater or end device.

crocusShdslTtRpG703/end/shdslVersion


This attribute displays the SHDSL version used on the repeater or end device.

crocusShdslTtRpG703/end/eocState


This attribute displays the state of the EOC channel.

Remark about the repeater object

• While the modem is in loop condition (AL), the repeater cannot be reached. Therefore, the repeater/eocState attribute will show offline while an AL test is activated.

• During a DL test, the eocState is not changed because the repeater can still be reached with EOC mes-sages.



178

crocusShdslTtRpG703/end/eocAlarmThresholds

This attribute is only retrieved in case the eocHandling attribute is set to info or alarmConfiguration.

What this attribute displays depends on the setting of the line/eocHandling attribute:

The eocAlarmThresholds structure contains the following elements:

• lineAttenuation• signalNoise

If eocHandling is set to …

then …

info the eocAlarmThresholds attribute displays the values as set in the line/linkAlarmThresh-olds attribute on the remote1 device or repeater.

1. The remote device is the device on which the channel attribute is set to remote.

alarmConfiguration the eocAlarmThresholds attribute displays the values as set in the line/linkAlarmThresh-olds attribute on the central2 device.

Remark

Note that the values are rounded off. E.g. when 28.6 dB is configured on the cen-tral modem, then 28 dB is shown on the remote device or repeater.

2. The central device is the device on which the channel attribute is set to central.



179

crocusShdslTtRpG703/end/linePair[ ]/lineAttenuation


This attribute displays the line attenuation, in dB, as it is measured on the line pair of the repeater or end device.

crocusShdslTtRpG703/end/linePair[ ]/signalNoise


This attribute displays the noise margin, in dB, as it is measured on the line pair of the repeater or end device.

crocusShdslTtRpG703/repeater/loopbackActivation

This action is only present in the repeater[ ] object.

Use this action to set up a loop at the network side of the Crocus SHDSL Repeater:

Set the loop by selecting the action argument value initiateNetworkLoopback and executing the action (dou-ble-click the loopbackActivation string). Stop the loop by selecting the action argument value clearAllMainte-nanceStates and executing the action (double-click the loopbackActivation string).

Important remarks

• You can only set up a loop at the network side of the Crocus SHDSL Repeater. Not at the customer side.

• You can only start the loopbackActivation action on the central device. Not on the remote device.• You can only start the loopbackActivation action in case the line/eocHandling attribute is set to alarmConfig-

uration.• The loopbackActivation action argument value noAction does nothing. It is only present to have a default

value..



180

7.6 DTE Interface status attributes


• crocusShdslTtRpG703/g703/timeSlots on page 181• crocusShdslTtRpG703/g703/los on page 181• crocusShdslTtRpG703/g703/ais on page 181• crocusShdslTtRpG703/g703/lfa on page 182• crocusShdslTtRpG703/g703/ifDescr on page 182• crocusShdslTtRpG703/g703/ifType on page 183• crocusShdslTtRpG703/g703/ifSpeed on page 183• crocusShdslTtRpG703/g703/ifClocking on page 183• crocusShdslTtRpG703/g703/ifOperStatus on page 183



181


This attribute displays the time slots that are being used. This is especially useful in case you set the framing attribute to auto. Refer to 5.7.1 - Selecting unframed or framed mode on page 94.

crocusShdslTtRpG703/g703/los

This attribute displays (on / off) whether a Loss Of Signal has been detected. LOS is on when the incom-ing data is no longer present. E.g. the connection from the application towards the Crocus SHDSL G703 is interrupted.

crocusShdslTtRpG703/g703/ais

This attribute displays (on / off) whether an Alarm Indication Signal has been detected. AIS is on when the AIS signal (also called all ones) is detected on the incoming data. E.g. the application detected a problem and communicates this to the Crocus SHDSL G703.



182

crocusShdslTtRpG703/g703/lfa

This attribute displays (on / off) whether a Loss of Frame Alignment has been detected. LFA is on when the Frame Alignment Signal (FAS), which is present in time slot 0 of the G.704 framed data, is not detected after a certain period.

crocusShdslTtRpG703/g703/ifDescr

This attribute displays the DTE interface description. It is an SNMP MIB2 parameter.



183

crocusShdslTtRpG703/g703/ifType

This attribute displays the DTE interface type. It is an SNMP MIB2 parameter.

The following table shows the default ifDescr and ifType attribute for each DTE interface.

crocusShdslTtRpG703/g703/ifSpeed

This attribute displays the current DTE interface speed in bits per second (bps), e.g. 640000. When the DTE interface is down (ifOperStatus = down), the DTE interface speed is 0.

crocusShdslTtRpG703/g703/ifClocking

This attribute displays the clocking mode which is actually used by the Crocus SHDSL G703, e.g. inter-nalPreferred.

This is not necessarily the clocking mode you configured. It can be a clocking mode that is selected by the Crocus SHDSL G703 because it was not possible to select the clocking mode of your choice (for example, because the external clock signal is lost).

crocusShdslTtRpG703/g703/ifOperStatus

This attribute displays the current operational status of the DTE interface. The possible indications are:

DTE interface ifDescr value ifType value

G703 g703 • other when the G703 inter-face is used in unframed mode

• e1 when the G703 interface is used in framed mode

Value Description

up The DTE interface is up, data transfer is possible.

down The DTE interface is down, data transfer is not possible. For example, because there is no connection between the interface and the DTE.



184

7.7 Operating system status attributes


• crocusShdslTtRpG703/operatingSystem/taskInfo on page 185



185

crocusShdslTtRpG703/operatingSystem/taskInfo

The taskInfo table displays status information about the operating system. The table contains the following attributes:

Attribute Description

taskName Name of the task.

taskStatus Current status. The task can have the following status values:

• awake: This task is actually running.• asleep: This task is waiting on an event.• inactive: This task slot is not active, i.e. no task has been assigned to this slot.

load30s (%) This is the load on the processor during the last 30 seconds.

load5m (%) This is the load on the processor during the last 5 minutes.

runningInMedium (%)

Each task can be running with a low, medium or high priority. This element gives the percentage of time this task is running with medium priority during the last 30 seconds.

runningInHigh (%) Each task can be running with a low, medium or high priority. This element gives the percentage of time this task is running with high priority during the last 30 sec-onds. The percentage of time this task is running with low priority can be calculated using the following formula:100% - runningInMedium (%) - runningInHigh (%).

programCounter This is the current value of the program counter. The program counter is the mem-ory address for the current instruction of this task.



186


Reference manual Performance attributes

187

8 Performance attributes

This chapter discusses the performance attributes of the Crocus SHDSL G703. The following gives an overview of this chapter.

• 8.1 - Performance attribute overview on page 188• 8.2 - Introducing the performance attributes on page 190• 8.3 - Line performance attributes on page 193• 8.4 - Line pair performance attributes on page 196• 8.5 - Repeater and end performance attributes on page 199• 8.6 - G703 interface performance attributes on page 200• 8.7 - Operating system performance attributes on page 204



188

8.1 Performance attribute overview

> crocusShdslTtRpG703Action: Cold Boot

>> lineh2Lineh24Lined7LinelineerrorCountAction: retrainAction: testActivationAction: clearErrorCounter

>>> linePair[ ]1

h2LineParametersh2Performanceh24LineParametersh24Performanced7LineParametersd7PerformancelineParametersperformance

>> repeater[ ]2

h2Lineh24Lined7Lineline



1. in case of a 2P version, two linePair objects are present: linePair [1] and linePair [2]2. not present by default, is added automatically when setting the line/eocHandling attribute



189



>> end2

h2Lineh24Lined7Lineline

>>> linePair[ ]1


>> g7033

h2G703Performanceh24G703Performanced7G703Performanceg703Performanceh2G826Performanceh24G826Performanced7G826Performanceg826Performance

>> operatingSytemcurrUsedProcPowerfreeDataBufferstotalDataBufferslargestFreeBlockSizefreeBlockCountfreeMemorytotalMemoryusedProcPowertaskInfo

3. Crocus SHDSL G703 only



190

8.2 Introducing the performance attributes

Performance information can be used for the following:

• If network problems arise, information about the history of the communication link can be reviewed and analysed. These statistics can be useful to locate and solve the problem.

• By collecting performance information, an operator can keep track of the global performance of the network, e.g. network bottlenecks can be traced, etc.

Before discussing the performance attributes of the Crocus SHDSL G703 in detail, some general infor-mation on the performance attributes of the Crocus SHDSL G703 is given.


• 8.2.1 - Introducing the performance timing on page 191• 8.2.2 - Introducing the performance terms on page 192



191

8.2.1 Introducing the performance timing

The following table explains the performance information timing.

The Crocus SHDSL G703 does not contain a real-time clock, therefore time information is related to its internal clock. To allow you to situate the time intervals in the real time, the sysUpTime attribute is returned together with the performance information. It reflects the time since the latest cold boot of the Crocus SHDSL G703.

Only the available performance information is displayed. If the interrogation happens shortly after boot, no values are displayed. For example for the 24 hours intervals, the new performance information is available only when a complete time span (i.e. 2 hours) has elapsed.

Performance timing

Description

2 hours,24 hours,7 days

The performance information is accumulated during a certain time span, called a period. After a period, the accumulated performance information is written into a buffer. Then a new period starts. An interval contains several periods:

• To cover a 2 hours interval, 8 periods of 15 minutes are kept.• To cover a 24 hours interval, 12 periods of 2 hours are kept.• To cover a 7 days interval, 7 periods of 24 hours are kept.

The buffer in which the information is stored, is a circular buffer. I.e. every period (15 minutes, 2 hours or 24 hours) the most recent measured and calculated values are added, and the oldest values are lost.

since boot In this case, the performance information is kept since the latest cold boot of the Crocus SHDSL G703. This can be considered as a performance information sum-mary.



192

8.2.2 Introducing the performance terms

The following table explains the performance information terms.

Term Description

sysUpTime Reflects the time since the latest cold boot of the Crocus SHDSL G703.

min, max, avrg Display the minimum, maximum and average values calculated for the corre-sponding period.E.g. min-max-avrg value of the noise margin.

count Counts the number of times an event occurred during the corresponding period.E.g. the number of retrains.

time Indicates the duration of an event during the corresponding period.E.g. the time during which the line is up.



193

8.3 Line performance attributes

This section describes the following performance attributes:

• crocusShdslTtRpG703/line/<h2/h24/d7>Line on page 194• crocusShdslTtRpG703/line/line on page 194• crocusShdslTtRpG703/line/errorCount on page 194


• crocusShdslTtRpG703/line/retrain on page 195• crocusShdslTtRpG703/line/testActivation on page 195• crocusShdslTtRpG703/line/clearErrorCounter on page 195



194

crocusShdslTtRpG703/line/<h2/h24/d7>Line

This structured value displays the 2 hours, 24 hours and 7 days line performance. The <h2/h24/d7>Line structured value elements are the following:

crocusShdslTtRpG703/line/line

This structured value displays the line performance since the last cold boot. Except for sysUpTime, the structured value elements are the same as for the <h2/h24/d7>Line attribute.

crocusShdslTtRpG703/line/errorCount

This attribute displays the amount of detected errors since the start of an ET, AL-ET or RDL-ET test. Every time a new ET, AL-ET or RDL-ET is started, the errorCount attribute is reset to 0.

Element For the corresponding period, this value displays …

sysUpTime the elapsed time since the last cold boot.

linkDownCount the number of times the link went down.

linkDownTime the total amount of time the link was down.



195

crocusShdslTtRpG703/line/retrain

Use this action to initiate a retrain cycle. Double click on the retrain string to execute the action.

crocusShdslTtRpG703/line/testActivation

Use this action to perform a test on the Crocus SHDSL G703. These tests are useful to trace possible problems. Possible tests are: no, al, dl, rdl, et, alEt, rdlEt.

To execute a test, proceed as follows:

For more information on these tests, refer to Chapter 12 - Diagnostic tests on page 245.

crocusShdslTtRpG703/line/clearErrorCounter

Use this action to clear the value of the errorCount attribute. This could be useful, for example, to reset the error counter after the unstable period (in which errors occur anyhow) shortly after the initiation of a test.

Double click on the clearErrorCounter string to execute the action.

Step Action

1 In the TMA window, select the object line and the group Performance or Status.

2 In the action window of TMA, click the left mouse button on the field under the heading Argument Value.

⇒A drop down box appears.

3 In the drop down box, select the test you want to execute.




196

8.4 Line pair performance attributes


• crocusShdslTtRpG703/line/linePair[ ]/<h2/h24/d7>LineParameters on page 197• crocusShdslTtRpG703/line/linePair[ ]/lineParameters on page 197• crocusShdslTtRpG703/line/linePair[ ]/<h2/h24/d7>Performance on page 198• crocusShdslTtRpG703/line/linePair[ ]/performance on page 198




197

crocusShdslTtRpG703/line/linePair[ ]/<h2/h24/d7>LineParameters

This structured value displays the 2 hours, 24 hours and 7 days line pair parameters. The <h2/h24/d7>LineParameters structured value elements are the following:

crocusShdslTtRpG703/line/linePair[ ]/lineParameters

This structured value displays the line pair parameters since the last cold boot. Except for sysUpTime, the structured value elements are the same as for the <h2/h24/d7>LineParameters attribute.



lineAttenuationMin (dB) the minimum line attenuation that was measured.

lineAttenuationMax (dB) the maximum line attenuation that was measured.

lineAttenuationAvrg (dB) the average line attenuation that was calculated.

signalNoiseMin (dB) the minimum signal to noise ratio that was measured.

signalNoiseMax (dB) the maximum signal to noise ratio that was measured.

signalNoiseAvrg (dB) the average signal to noise ratio that was calculated.



198

crocusShdslTtRpG703/line/linePair[ ]/<h2/h24/d7>Performance

This structured value displays the 2 hours, 24 hours and 7 days line pair performance. The <h2/h24/d7>Per-formance structured value elements are the following:

For the correct and unambiguous definition of code violations, errored and severely errored seconds, unavailability and lost sync words, refer to the recommendation G.826.

crocusShdslTtRpG703/line/linePair[ ]/performance

This structured value displays the line pair performance since the last cold boot. Except for sysUpTime, the structured value elements are the same as for the <h2/h24/d7>Performance attribute.

Attribute For the corresponding period, this attribute displays …

sysUpTime the time since the latest cold boot.

codeViolations the number of errored SHDSL frames that was counted.

errSec the number of errored seconds that was counted.

sevErrSec the number of severely errored seconds that was counted.

unavailableSec the number of unavailable seconds that was counted.

loswSec the number of lost synchronisation words that was counted.

moniSec the number of monitored seconds.



199

8.5 Repeater and end performance attributes

• The repeater[ ] and the end objects are not present in the containment tree by default. They are added automatically when you configure the eocHandling attribute. Refer to 5.2 - Configuring EOC handling on page 57.


• The performance information of the line and line pairs of the repeater and end device is only retrieved in case the eocHandling attribute is set to info or alarmConfiguration. Other than that, the repeater[ ] and end objects contain the same performance attributes as the line object. Refer to …- 8.3 - Line performance attributes on page 193 for more information on the line attributes.- 8.4 - Line pair performance attributes on page 196 for more information on the line pair attributes.


Note that the sysUpTime in the performance attributes of the repeater[ ] and end objects is not the elapsed time since the last cold boot, but the elapsed time since the creation of the repeater[ ] or end object.



200

8.6 G703 interface performance attributes


• crocusShdslTtRpG703/g703/<h2/h24/d7>G703Performance on page 201• crocusShdslTtRpG703/g703/g703Performance on page 201• crocusShdslTtRpG703/g703/<h2/h24/d7>G826Performance on page 202• crocusShdslTtRpG703/g703/g826Performance on page 202


• crocusShdslTtRpG703/g703/testActivation on page 202



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crocusShdslTtRpG703/g703/<h2/h24/d7>G703Performance

This structured value displays the 2 hours, 24 hours and 7 days performance summary of the G703 inter-face. The <h2/h24/d7>G703Performance structured value elements are the following:

Also see G703 interface performance definitions.

crocusShdslTtRpG703/g703/g703Performance

This structured value displays the performance summary of the G703 interface since the last cold boot. Except for sysUpTime, the structured value elements are the same as for the <h2/h24/d7>G703Performance attribute.



losCount the number of times a Loss Of Signal condition occurred.

losTime the amount of time a Loss Of Signal condition was active.

aisCount the number of times an Alarm Indication Signal condition occurred.

aisTime the amount of time an Alarm Indication Signal condition was active.

lfaCount the number of times a Loss of Frame Alignment condition occurred. This is only relevant when working in framed mode.

lfaTime the amount of time a Loss of Frame Alignment condition was active. This is only relevant when working in framed mode.



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crocusShdslTtRpG703/g703/<h2/h24/d7>G826Performance

This structured value displays the 2 hours, 24 hours and 7 days G.826 performance summary of the G703 interface. The <h2/h24/d7>G826Performance structured value elements are the following:

Also refer to G703 interface performance definitions.

crocusShdslTtRpG703/g703/g826Performance

This structured value displays the G.826 performance summary of the G703 interface since the last cold boot. Except for sysUpTime, the structured value elements are the same as for the <h2/h24/d7>G826Performance attribute.

crocusShdslTtRpG703/g703/testActivation

Use this action to activate a test on the G703 interface. These tests are useful to trace possible prob-lems. First select the test (i.e. the argument value), then execute the testActivation action. You can limit the duration of an active test on the G703 interface by using the attribute crocusShdslTtRpG703/line/testDuration on page 138.

The testActivation action has the following argument values:



errBlocks the number of errored blocks that was counted.

errSec the number of errored seconds that was counted.

sevErrSec the number of severely errored seconds that was counted.

unavailCount the number of times the interface was down (i.e. unavailable, as defined in ITU-T recommendation G.826 Annex A).

unavailTime the amount of time the interface was down.

bBErrors the number of background block errors that was counted.

Value Description

no No test is activated. In case you want to stop a test, then select this value and execute the testActivation action.

internalLoopback Starting an internalLoopback test on the G703 interface loops the data coming from the DTE back to the DTE.



203

G703 interface performance definitions

The following table lists some of the definitions that are used in the ITU-T recommendations that apply on the G703 interface. They are listed here for completeness only. For more detailed information, refer to the recommendations themselves.

Term Definition

defect A defect is one of the following conditions:

• Loss Of Signal (LOS, defined in G.775).• Alarm Indication Signal (AIS, defined in G.775).• Loss of Frame Alignment (LFA, defined in G.706).

Errored Block (EB)

A data frame that contains one or more errors. In case of G.704 framing a frame is time slot 0 up to time slot 31.

Errored Second (ES)

A 1 second period where at least 1 EB or defect occurred.

Severely Errored Second (SES)

A 1 second period where equal to or more than 30% EBs occur or at least 1 defect. The measurement of EBs depends on the operation mode:

• Framed without CRC-4: the error detection occurs based on the detected Frame Alignment Signal (FAS) bit errors; 28 FAS bit errors per second matches a Bit Error Rate (BER) of 10-3 or more.

• Framed with CRC-4: the error detection occurs based on CRC-4.

unavailability Matches a period of 10 or more consecutive SESs. Refer to G.826 Annex A for a complete definition.



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8.7 Operating system performance attributes


• crocusShdslTtRpG703/operatingSystem/currUsedProcPower on page 205• crocusShdslTtRpG703/operatingSystem/freeDataBuffers on page 205• crocusShdslTtRpG703/operatingSystem/totalDataBuffers on page 205• crocusShdslTtRpG703/operatingSystem/largestFreeBlockSize on page 205• crocusShdslTtRpG703/operatingSystem/freeBlockCount on page 205• crocusShdslTtRpG703/operatingSystem/freeMemory on page 205• crocusShdslTtRpG703/operatingSystem/totalMemory on page 205• crocusShdslTtRpG703/operatingSystem/usedProcPower on page 206• crocusShdslTtRpG703/operatingSystem/taskInfo on page 206



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crocusShdslTtRpG703/operatingSystem/currUsedProcPower

This is the amount of processing power used during the last 650 milliseconds, expressed as a percent-age of the total available processing power.

crocusShdslTtRpG703/operatingSystem/freeDataBuffers

The processor uses buffers for storing the packets during processing and/or queuing. Each buffer has a 256 byte size, headers included. This attribute is the number of data buffers currently not in use and available for e.g. incoming data.

crocusShdslTtRpG703/operatingSystem/totalDataBuffers

This is the total number of available data buffers.

crocusShdslTtRpG703/operatingSystem/largestFreeBlockSize

The processor uses RAM memory for storing internal information and buffering (see totalDataBuffers). The different tasks allocate RAM memory on request. Tasks may also free memory again. In this way the total RAM memory becomes fragmented. This attribute gives the size of the largest contiguous free memory block expressed in bytes.

crocusShdslTtRpG703/operatingSystem/freeBlockCount

This is the number of free contiguous memory blocks.

crocusShdslTtRpG703/operatingSystem/freeMemory

This is the total free memory expressed in bytes.

crocusShdslTtRpG703/operatingSystem/totalMemory

This is the total RAM memory expressed in bytes.



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crocusShdslTtRpG703/operatingSystem/usedProcPower

This table lists the used processing power for the 11 most recent 30 seconds intervals. The processing power is expressed as a percentage of the total processing power. Each entry in the attribute used-ProcPower is composed of the following attributes:

crocusShdslTtRpG703/operatingSystem/taskInfo

This attribute contains status information concerning the different tasks running on the processor. It is a table grouping up to 31 task slots, which is the maximum number of parallel tasks running on the proc-essor's operating system.

This attribute contains the same information as taskInfo in the status group (refer to 7.7 - Operating sys-tem status attributes on page 184).

Value Description

sysUpTime Displays the elapsed time since the last cold boot. The next values are for the 30 seconds period before this relative time stamp.

minimumPP (%) This is the minimum percentage of processing power in use during the last 30 seconds.

averagePP (%) This is the average percentage of processing power in use during the last 30 seconds.

maximumPP (%) This is the maximum percentage of processing power in use during the last 30 seconds.


Reference manual Alarm attributes

207

9 Alarm attributes

This chapter discusses the alarm attributes of the Crocus SHDSL G703. The following gives an overview of this chapter.

• 9.1 - Alarm attribute overview on page 208• 9.2 - Introducing the alarm attributes on page 210• 9.3 - General alarms on page 218• 9.4 - Line alarms on page 221• 9.5 - Line pair alarms on page 223• 9.6 - Repeater and end alarms on page 226• 9.7 - Interface alarms on page 229



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9.1 Alarm attribute overview

> crocusShdslTtRpG703totalAlarmLevelalarmInfo

notRespondingalarmSyncLossconfigChangedaccessremoteAlarmunknownStatecoldBootwarmBootlocalPowerFailcodeConsistencyFailconfigConsistencyFail

Action: Cold Boot

>> linealarmInfo

linkDowntestActiveinvalidNumRepeaters

>>> linePair[ ]1

alarmInfolinkDownlineAttenuationsignalNoiseerrSecRatioExceededsevErrSecRatioExceeded

>> repeater[ ]2

alarmInfolinkDown



1. in case of a 2P version, two linePair objects are present: linePair [1] and linePair [2]2. not present by default, is added automatically when setting the line/eocHandling attribute



209



>> end2

alarmInfolinkDown

>>> linePair[ ]1


>> g7033

alarmInfolinkDownaissqlossOfTiming

3. Crocus SHDSL G703 only



210

9.2 Introducing the alarm attributes

Before discussing the alarm attributes of the Crocus SHDSL G703 in detail, some general information on the alarm attributes of the Crocus SHDSL G703 is given.


• 9.2.1 - Configuration alarm attributes on page 211• 9.2.2 - General alarm attributes on page 215• 9.2.3 - Alarm signalling on page 217



211

9.2.1 Configuration alarm attributes

This section explains the attributes that allow you to configure the alarm behaviour of the Crocus SHDSL G703. These configuration alarm attributes are:

• crocusShdslTtRpG703/…/alarmMask on page 212• crocusShdslTtRpG703/…/alarmLevel on page 212• crocusShdslTtRpG703/…/remoteAlarmMask on page 214



212

crocusShdslTtRpG703/…/alarmMask

Use this attribute to mask or unmask the alarms of an object. This determines whether an active alarm …

• is forwarded to the central management system (e.g. TMA Element Management or HP OpenView) or not.

• causes a change of colour in the subsystem picture (refer to Chapter 10 - TMA subsystem picture of the Crocus SHDSL G703 on page 231).

The alarms in the alarmMask attribute have the following values:

Alarms are always seen in the alarmInfo alarm attribute of an object, regardless of the masking of the alarm. I.e. even if an alarm is set to disabled in the alarmMask of an object, if the alarm condition is fulfilled then the alarm will be set to on in the alarmInfo of that object. However, because this alarm is disabled it will not be sent to the central management system.

Only the most important alarms are unmasked (i.e. enabled) by default. All other alarms are masked (i.e. disabled).

crocusShdslTtRpG703/…/alarmLevel

Use this attribute to assign a priority level to each alarm of the corresponding object. The alarm level range goes from 0 to 254, where 0 is the lowest and 254 is the highest priority level.

The alarmLevel of an unmasked, active alarm is sent to the totalAlarmLevel of the top object crocusShdslTtRpG703.

Value Is the active alarm being forwarded to the central management system? Does the active alarm cause a change of colour in the subsystem picture?

enabled Yes. So the alarm is unmasked.

disabled No. So the alarm is masked.



213



214

crocusShdslTtRpG703/…/remoteAlarmMask

This attribute is present on the TT only.

The remoteAlarmMask attribute enables or disables for each alarm of the corresponding object, whether:

• a visual indication is generated (blinking error LED).• an alarm is sent to the remote Crocus SHDSL G703.

By default, all the alarms in the remoteAlarmMask are set to disabled.



215

9.2.2 General alarm attributes

This section describes the following alarm attributes:

• crocusShdslTtRpG703/totalAlarmLevel on page 216• crocusShdslTtRpG703/…/alarmInfo on page 216



216

crocusShdslTtRpG703/totalAlarmLevel

This attribute is only present in the top object of the containment tree of the Crocus SHDSL G703, crocusShdslTtRpG703.

It displays the priority level of an unmasked, active alarm. When several alarms are generated at the same time, the highest priority level is shown. If the alarm levels are set in a structured manner, one look at the totalAlarmLevel attribute enables the operator to make a quick estimation of the problem.

The value of the totalAlarmLevel attribute is also communicated to the central management system (e.g. TMA Element Management or HP OpenView) where it determines the colour of the icon. This colour is an indication of the severity of the alarm.

crocusShdslTtRpG703/…/alarmInfo

The alarmInfo contains the actual alarm information of the corresponding object. This information is updated each time there is a change in the status of an alarm within this object.

The alarmInfo attributes are:

Attribute Displays for the corresponding object …

discriminator the total number of alarm status changes in this object since the last cold boot.

currentAlarms the current alarm status of this object.

previousAlarms the previous alarm status of this object.

alarmMask the alarmMask as configured in the Configuration group.

alarmLevel the alarmLevel as configured in the Configuration group.



217

9.2.3 Alarm signalling

If you do not have a central management system, you could perform alarm signalling with the alarm con-tacts of the CN4 card nest.

Example

Suppose the following situation:

• On a remote Crocus SHDSL TT the configChanged alarm of the Crocus SHDSL G703 object is set to enabled in the remoteAlarmMask. In other words: crocusShdslTtRpG703/remoteAlarmMask/configChanged = enabled.

• On a central Crocus SHDSL CV the remoteAlarm of the top object is set to enabled in the alarmCon-tactHighMask. In other words: crocusShdslTtRpG703/alarmContactHighMask/remoteAlarm = enabled.

• The high alarm contacts of the CN4 card nest are connected in a circuit with a light bulb.

Now the following happens:

Phase Situation Result

1 Someone changes the configuration of the Crocus SHDSL TT.

On the Crocus SHDSL TT the configChanged alarm becomes active.

2 On the Crocus SHDSL TT the configChanged alarm is enabled in the remoteAlarmMask.

A remote alarm is sent to the Crocus SHDSL CV.

3 On the Crocus SHDSL CV the remoteAlarm is enabled in the alarmContactHighMask.

The high alarm contacts of the CN4 card nest close.

4 The high alarm contacts of the CN4 card nest close.

The light bulb lights up.



218

9.3 General alarms


• crocusShdslTtRpG703/alarmInfo on page 219

This section describes the following action:

• crocusShdslTtRpG703/Cold Boot on page 220

Refer to 9.2 - Introducing the alarm attributes on page 210 for the general alarm attributes.



219

crocusShdslTtRpG703/alarmInfo

The different alarms related to the crocusShdslTtRpG703 object together with their explanation and their default alarmMask and alarmLevel value are given in the following table:

The alarm … is generated … Default value

alarmMask alarmLevel

notResponding when the Crocus SHDSL G703 does not respond on the polling session of the man-agement concentrator.

enabled 4

alarmSyncLoss when the internal alarm buffer overflows. enabled 4

configChanged when the configuration of the Crocus SHDSL G703 is changed.

disabled 1

access when a management session is started on the Crocus SHDSL G703 itself. This alarm is not activated when the management session is established through a manage-ment concentrator.

Example

The alarm …

• is activated in case of a TMA, TMA CLI, terminal (CLI or ATWIN) or EasyCon-nect session via the control connector of the Crocus SHDSL G703.

• is not activated in case of any manage-ment session (TMA, terminal, Telnet, HTTP, etc.) established through a man-agement concentrator on the Crocus SHDSL G703.

disabled 1

remoteAlarm when the remote Crocus SHDSL G703 is in alarm condition.

disabled 0

unknownState each time a new Crocus SHDSL G703 is added to the network and before the man-agement concentrator has completed a first successful polling session.

disabled 0

coldBoot when the Crocus SHDSL G703 performs a cold boot.

disabled 1

warmBoot when the Crocus SHDSL G703 performs a warm boot.

disabled 1



220


This action will reboot the Crocus SHDSL G703 while the power stays up (the Crocus SHDSL G703 also reboots if it is powered down and up again).

localPowerFail when the local power of the Crocus SHDSL G703 fails

disabled 3

codeConsistencyFail when the software consistency imposed by the management concentrator on the Cro-cus SHDSL G703 fails. For example, because of a loss of contact.

On the management concentrator, check the status attribute nmsgroup/softConsisten-cyStatus to determine the problem.

disabled 1

configConsistencyFail when the configuration consistency imposed by the management concentrator on the Crocus SHDSL G703 fails. For example, because of a loss of contact.On the management concentrator, check the status attributes nmsgroup/objectTable/config-State and configDiag to determine the prob-lem.

disabled 1





221

9.4 Line alarms

This section describes the following alarm attribute:

• crocusShdslTtRpG703/line/alarmInfo on page 222




222

crocusShdslTtRpG703/line/alarmInfo

The different alarms related to the line object together with their explanation and their default alarmMask and alarmLevel value are given in the following table:



linkDown when no data link towards the remote Cro-cus SHDSL G703 is present.It does not necessarily mean that the line pair is dis-connected. If the line quality is so bad that data transfer is not possible, a linkDown alarm is generated.

enabled 3

invalidNumRepeaters when the number of repeaters you entered in the line/numExpectedRepeaters configuration attribute does not match the actual number of repeaters discovered by the Crocus SHDSL G703.The actual number of repeaters discovered by the Crocus SHDSL G703 can be seen in the line/num-DiscoveredRepeaters status attribute.

disabled 1

testActive when a test is active. disabled 1



223

9.5 Line pair alarms


• crocusShdslTtRpG703/line/linePair[ ]/alarmInfo on page 224





224

crocusShdslTtRpG703/line/linePair[ ]/alarmInfo

The different alarms related to the linePair[ ] object together with their explanation and their default alarm-Mask and alarmLevel value are given in the following table:



linkDown when no data link towards the remote Cro-cus SHDSL G703 is present.

It does not necessarily mean that the line pair is disconnected. If the line quality is so bad that data transfer is not possible, a link-Down alarm is generated.

enabled 3

lineAttenuation when the line attenuation exceeds the value configured in the line/linkAlarmThresh-olds configuration attribute for at least 10 seconds. The alarm is cleared when the line attenuation drops below this value for at least 10 seconds.

Note however that in case the line/eocHan-dling configuration attribute is set to alarm-Configuration, the central SHDSL device forces the remote SHDSL device to use the linkAlarmThresholds/lineAttenuation as config-ured on the central device.

For more information, refer to …

• 5.2.2 - The EOC handling attribute on page 59

• 5.2.4 - EOC retrieved information on page 60

disabled 1



225

signalNoise when the signal noise exceeds the value configured in the line/linkAlarmThresholds con-figuration attribute for at least 10 seconds. The alarm is cleared when the signal noise drops below this value for at least 10 sec-onds.

Note however that in case the line/eocHan-dling configuration attribute is set to alarm-Configuration, the central SHDSL device forces the remote SHDSL device to use the linkAlarmThresholds/signalNoise as configured on the central device.




disabled 1

errSecRatioExceeded when the errored seconds ratio exceeds the value configured in the line/linkAlarm-Thresholds configuration attribute within a 15 minute period1. The alarm is cleared when the errored seconds ratio drops below this value within a 15 minute period.

disabled 1

sevErrSecRatioExceeded when the severely errored seconds ratio exceeds the value configured in the line/linkAlarmThresholds configuration attribute within a 15 minute period1. The alarm is cleared when the severely errored seconds ratio drops below this value within a 15 minute period.

disabled 2

1. The 15 minute periods run synchronous with the 2 hour periods of the line/h2Line performance attribute. Because alarms are raised or cleared within 15 minute periods, there is a delay in the alarm status. For example, suppose that in the first minute of a 15 minute period the errSecRa-tioExceeded value is exceeded, then the errSecRatioExceeded alarm is raised when the full 15 minute period has passed. The alarm is only cleared if in the next 15 minute period the errSe-cRatioExceeded value is not exceeded.





226

9.6 Repeater and end alarms


• crocusShdslTtRpG703/end/linePair[ ]/alarmInfo on page 227

• The repeater[ ] and the end objects are not present in the containment tree by default. They are added automatically when you configure the eocHandling attribute. Refer to 5.2 - Configuring EOC handling on page 57


• The repeater[ ] and end objects contain the same attributes, therefore only the attributes of the end object are listed here.




227

crocusShdslTtRpG703/end/linePair[ ]/alarmInfo

The different alarms related to the linePair[ ] object together with their explanation and their default alarm-Mask and alarmLevel value are given in the following table:l



linkDown when no data link towards the remote Cro-cus SHDSL G703 is present.

It does not necessarily mean that the line pair is disconnected. If the line quality is so bad that data transfer is not possible, a link-Down alarm is generated.

enabled 3

lineAttenuation when the line attenuation exceeds the value configured in the line/linkAlarmThresh-olds configuration attribute of the local device for at least 10 seconds. The alarm is cleared when the line attenuation drops below this value for at least 10 seconds.

Note however that in case the line/eocHan-dling configuration attribute is set to alarm-Configuration, the central SHDSL device forces the remote SHDSL device and any intermediary repeater to use the linkAlarm-Thresholds/lineAttenuation as configured on the central device.




disabled 1



228

signalNoise when the signal noise exceeds the value configured in the line/linkAlarmThresholds con-figuration attribute of the local device for at least 10 seconds. The alarm is cleared when the signal noise drops below this value for at least 10 seconds.

Note however that in case the line/eocHan-dling configuration attribute is set to alarm-Configuration, the central SHDSL device forces the remote SHDSL device and any intermediary repeater to use the linkAlarm-Thresholds/signalNoise as configured on the central device.




disabled 1

errSecRatioExceeded when the errored seconds ratio exceeds the value configured in the line/linkAlarm-Thresholds configuration attribute of the local device within a 15 minute period1. The alarm is cleared when the errored seconds ratio drops below this value within a 15 minute period.

disabled 1

sevErrSecRatioExceeded when the severely errored seconds ratio exceeds the value configured in the line/linkAlarmThresholds configuration attribute of the local device within a 15 minute period1. The alarm is cleared when the severely errored seconds ratio drops below this value within a 15 minute period.

disabled 2

1. The 15 minute periods run synchronous with the 2 hour periods of the line/h2Line performance attribute. Because alarms are raised or cleared within 15 minute periods, there is a delay in the alarm status. For example, suppose that in the first minute of a 15 minute period the errSecRa-tioExceeded value is exceeded, then the errSecRatioExceeded alarm is raised when the full 15 minute period has passed. The alarm is only cleared if in the next 15 minute period the errSe-cRatioExceeded value is not exceeded.

The local configured thresholds are used to generate the errSecRatioExceeded alarm, the sevErrSecRatio-Exceeded alarm and the bBErrRatioExceeded alarm, so these alarms can differ from the alarms generated on the device at the other site of the line.





229

9.7 Interface alarms


• crocusShdslTtRpG703/<dteInterface>/alarmInfo on page 230




230

crocusShdslTtRpG703/<dteInterface>/alarmInfo

The different alarms related to the <dteInterface> object together with their explanation and their default alarmMask and alarmLevel value are given in the following table:



linkDown(for G703)

when there is a loss of signal. I.e. the trans-mit data is no longer present.

enabled 3

ais(G703)

when an Alarm Indication Signal (AIS) has been detected in the incoming G703 trans-mit data (the alarm signal needs to be active for at least one sceond). It means the application has detected an error.

disabled 2

lfa when the Frame Alignment Signal (FAS), which is present in time slot 0 of the G.704 framed data, is not detected after a certain period.This alarm is also generated when the attribute crc4Insertion is set to enabled, but no CRC is sent by the application. (This does not apply when the crc4Insertion is set to auto.)

disabled 2

sq(G703)

when the sqThreshold value, i.e. the number of errored seconds, is exceeded within the sqTime.For example, if 10 (default) or more errored seconds occur within 1 minute (default), then a signal quality alarm is gen-erated.Refer to the configuration attributes sqThreshold and sqTime for more information.

disabled 2

lossOfTiming when an external clocking mode is config-ured but the external clock signal is not present. In that case the Crocus SHDSL G703 switches to internal clocking mode.

enabled 3


User manual TMA subsystem picture of the Crocus SHDSL G703

231

10 TMA subsystem picture of the Crocus SHDSL G703

The subsystem picture is a TMA tool which visualises the status information of the Crocus SHDSL G703. This chapter explains how to display the subsystem picture, and how to interpret the visual indications. The following gives an overview of this chapter.

• 10.1 - Displaying the subsystem picture on page 232• 10.2 - Subsystem picture elements on page 233



232

10.1 Displaying the subsystem picture

To display the subsystem picture of the Crocus SHDSL G703, proceed as follows:

Step Action

1 Open a TMA session on the Crocus SHDSL G703. Refer to 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42.

2 In the TMA window, press on the subsystem picture button: .

The subsystem picture is displayed:

3 To close the subsystem picture, press .



233

10.2 Subsystem picture elements

This section displays and labels the different elements of the subsystem picture. It also explains how the visual indications should be interpreted.

Below, the Crocus SHDSL G703 subsystem picture is displayed.

When TMA fails to upload the sub-system picture info (e.g. because TMA is disconnected), then the LEDs and connectors are greyed-out.



234

The table below gives an overview of the subsystem picture elements and what they indicate:

Element Description

LED indicators They reflect the actual status of the Crocus SHDSL G703. The LED indication on the subsystem picture corresponds with the LED indication on the Crocus SHDSL G703 itself. For more information on the interpretation of the LEDs, refer to 2.9 - Front panel LED indicators on page 30.

DTE interface This reflects the status of the DTE interface. The possible indications are:

• green: No alarm of the <dteInterface> object is active.• red: An (unmasked) alarm of the <dteInterface> object is active.

The layout of the connector also gives an indication of the type of DTE interface which is currently used in the Crocus SHDSL G703.

Remark

• The colours of the DTE interface only change if the alarms related to the <dteInterface> object are set to enabled in the alarmMask. For more information, refer to 9.2.1 - Configuration alarm attributes on page 211.

line This reflects the status of the line. The possible indications are:

• green outside: No (unmasked) alarm of the line object is active.• red outside: An (unmasked) alarm of the line object is active.• green inside: No (unmasked) alarm of the linePair object is active.• red inside: An (unmasked) alarm of the linePair object is active.

The colours of the interfaces only change if the alarms related to the line and/or linePair object are set to enabled in the alarmMask. For more information, refer to 9.2.1 - Configuration alarm attributes on page 211.

Example:

If you want to avoid that the outside of the line connector turns red every time you execute a test, set the alarm testActive in the alarmMask of the line object to disabled. Note that by doing so, you also disable the sending of the testActive alarm to the central management system (e.g. HP OpenView).


User manual Software download

235

11 Software download

This chapter explains how to download new loader and application software (also called firmware) into the flash memory of the Crocus SHDSL G703. The following gives an overview of this chapter.

• 11.1 - What is boot, loader and application software? on page 236• 11.2 - Important download issues on page 240• 11.3 - Downloading with TMA on page 241• 11.4 - Downloading with TML on page 242• 11.5 - Downloading in loader mode on page 243



236

11.1 What is boot, loader and application software?

This section explains the difference between boot, loader and application software. The following gives an overview of this section:

• 11.1.1 - What is boot software? on page 237• 11.1.2 - What is loader software? on page 238• 11.1.3 - What is application software? on page 239



237

11.1.1 What is boot software?

What is boot software?

The boot software takes care of the start-up of the Crocus SHDSL G703. It is located on the lowest soft-ware level.

Functionality in boot mode

In boot mode you can only download loader software to the Crocus SHDSL G703.

The boot mode DIP switch

You can force the Crocus SHDSL G703 in boot mode using a DIP switch. This is necessary in case you want to download new loader software.

How to identify the Crocus SHDSL G703 runs in boot mode?

When the Crocus SHDSL G703 runs in boot mode …

• the PWR LED is on• the RXD and TXD LED are in a random state• all other LEDs are off.



238

11.1.2 What is loader software?

What is loader software?

The loader software takes care of the download of application software to the Crocus SHDSL G703. It is located on the middle software level.

When you start a download of application software while in application mode, the Crocus SHDSL G703 automatically falls back to loader mode.

Functionality in loader mode

In loader mode the Crocus SHDSL G703 has limited functionality. In loader mode you can …

• download application software to the local Crocus SHDSL G703• download application software over the line to a remote Crocus SHDSL G703.

However, while in loader mode the Crocus SHDSL G703 can not …

• transfer data• be accessed with TMA• be configured.

The loader mode DIP switch

You can force the Crocus SHDSL G703 in loader mode using a DIP switch. This is necessary in case you want to download new application software.

How to identify the Crocus SHDSL G703 runs in loader mode?

When the Crocus SHDSL G703 runs in loader mode …

• the PWR LED is on• the TST LED is on.

When the Crocus SHDSL G703 switches from loader mode to application mode, the TST LED flashes 5 times.



239

11.1.3 What is application software?

What is application software?

The application software, also called firmware, completely controls the Crocus SHDSL G703. It is located on the highest software level.

Functionality in application mode

In application mode the Crocus SHDSL G703 has full functionality.



240

11.2 Important download issues

• When you upgrade the application software of the Crocus SHDSL G703, do not power off the Crocus SHDSL G703 until the TST LED stops blinking. Else the application software upgrade will fail.

• When you upgrade the application software of the Crocus SHDSL G703, do not power off the Crocus SHDSL G703 as long as only the PWR LED blinks and all the other LEDs are off. Else the application software upgrade will fail.

• When a Crocus SHDSL G703 is managed by a management concentrator (i.e. it is present in the management concentrator its objectTable and being polled), it is no longer possible to download soft-ware through the Crocus SHDSL G703 its control connector using TMA or TML. Instead, use the soft-ware distribution feature of the management concentrator.

• It is not possible to use the software distribution feature of a management concentrator to download loader software to a Crocus SHDSL G703.

• When you download new loader software, you also have to download the application software again.



241

11.3 Downloading with TMA

To download application software with TMA, proceed as follows:

Step Action

1 Establish a link between TMA and the Crocus SHDSL G703 through the control connec-tor. Refer to 4.1 - Starting TMA on the Crocus SHDSL G703 on page 42.

2 In the TMA window select Tools → Download…

3 In the TMA - Download window, select the Options tab:·

• Set the initial transfer speed to 9600 bps.·• If you set the maximum transfer speed to 115200 bps, the actual transfer speed will

be negotiated between the computer and the Crocus SHDSL G703 and will be between 9600 bps and 115200 bps.

4 In the TMA - Download window, select the Configuration tab, and press Add…

5 In the Remote filename window:

1. Select the filename you want to download (Txxxxxxx.00).2. Type CONTROL in the Remote file field.3. Press Open.

6 When the TMA - Download window reappears, press OK.

⇒The Crocus SHDSL G703 falls back to loader mode, then a DOS window opens and shows the download progress.



242

11.4 Downloading with TML

When downloading with TMA (as explained in the previous section), you actually evoke TML (Total Memory Loader) through TMA. You can also use TML without opening TMA.

To download application software with TML, proceed as follows:

Step Action

1 Connect a serial port of your computer (e.g. COM1) through a straight DB9 male - female cable with the control connector of your Crocus SHDSL G703 as shown in the following figure:

2 Open a DOS window on your computer.

3 Go to the directory where the TML executable is located. Typically this isC:\Program Files\TMA.

4 Place the software file you want to download in this directory.

5 Type the following command to download:

• application software: tml -c1 -v -f<Txxxxxxx.00>@CONTROL• loader software: tml -c1 -b -f<Txxxxxxx.00>@CONTROL

where …

• tml is the executable (Total Memory Loader) to download files to the OneAccess devices through their control port

• -c1 specifies the COM port of the computer connected to the Crocus SHDSL G703 (in this example COM1)

• -v returns graphical information on the download status• -b puts the Crocus SHDSL G703 in boot mode. This is only necessary when you want

to download loader software.• -f<Txxxxxxx.00> is the software file you want to download (e.g. T1212001.00)• CONTROL (in capitals!) specifies that the destination is a flash bank of the Crocus

SHDSL G703.

To see a list of all the possible TML options: type TML in your DOS windows and press the ENTER key.

6 If you press the ENTER key, the software download begins.If you used the -v option together with the TML command, a graphical bar shows the download progress.



243

11.5 Downloading in loader mode

When a download of application software has failed or when a flash memory error occurs, the Crocus SHDSL G703 normally remains in loader mode. In other words, you can immediately retry to download the application software again.

However, it may be possible that the application software becomes corrupt making the Crocus SHDSL G703 inoperative and inaccessible to TMA. In that case, new application software can still be down-loaded by forcing the Crocus SHDSL G703 in loader mode using a DIP switch (refer to 3.1.2 - DIP switches of the TT on page 36.

To download application software to a Crocus SHDSL G703 in loader mode, proceed as follows:

Step Action

1 Disconnect the Crocus SHDSL G703 from the power supply.

2 Set DIP switch bank DS1 position 2 to off.

To locate this DIP switch bank and for the DIP switch setting procedure, refer to 3 - DIP switches and straps of the Crocus SHDSL G703 on page 33.


⇒The Crocus SHDSL G703 is now in loader mode.

4 Now proceed as explained in 11.4 - Downloading with TML on page 242.

5 When the download is finished, disconnect the Crocus SHDSL G703 from the power sup-ply again.

6 Reset DIP switch bank DS1 position 2 to on.




244


User manual Diagnostic tests

245

12 Diagnostic tests

This chapter describes the diagnostic tests of the Crocus SHDSL G703. The following gives an overview of this chapter.

• 12.1 - Introducing the diagnostic tests on page 246• 12.2 - Line tests on page 247• 12.3 - Interface tests on page 255



246

12.1 Introducing the diagnostic tests

This section gives some introductory notes on the diagnostic tests.

Test originators and corresponding priority levels

The following table shows the possible test originators and their priority level.

Example

Important remarks

• Within the same priority level, the rule "first come, first served" applies.

• The management system can stop a test started by any originator.

• During the execution of a test, no normal data communication is possible. In order to avoid that the test would stay active for an indefinite time, and thus blocking the normal data transfer, a testDuration attribute is linked to the tests (refer to 6.3 - Line configuration attributes on page 131). This attribute determines how long a test lasts.

Diagnostic tests can be generated by … with the priority level …

the management system, high.

the keyboard, medium.

the application via the interface, low.

the remote Crocus SHDSL G703,(RDL test only) low.

Phase Action Result

1 Start an interface test, for example AL. The AL test is started.

2 Start a test in TMA, for example RDL. The AL test stops, and the RDL test starts. This because the interface test has a lower priority than the TMA test.

3 Stop the TMA test. The interface test, in this case AL, is restarted.



247

12.2 Line tests

This section describes the diagnostic tests you can start on the line of the Crocus SHDSL G703. The following gives an overview of this section:

• 12.2.1 - The line test action on page 248• 12.2.2 - Error test on page 250• 12.2.3 - Analogue loop on page 251• 12.2.4 - Remote digital loop on page 252• 12.2.5 - Digital loop on page 254



248

12.2.1 The line test action

This section describes the following test attributes:

• crocusShdslTtRpG703/line/testActivation on page 249• crocusShdslTtRpG703/line/testDuration on page 249



249

The location of the testActivation attribute in the Crocus SHDSL G703 containment tree is:

crocusShdslTtRpG703/line/testActivation

Use this action to perform a test on the Crocus SHDSL G703. These tests are useful to trace possible problems. Possible tests are: no, al, dl, rdl, et, alEt, rdlEt.

To execute a test, proceed as follows:

crocusShdslTtRpG703/line/testDuration

Use the testDuration attribute to set the time-out period of diagnostic tests. Tests are automatically terminated after this time-out period.

The time-out ranges from 00000d 00h 00m 01s up to 00000d 18h 12m 15s. Entering 00000d 00h 00m 00s disables the time-out period (i.e. diagnostic tests are not terminated after a time-out period).

Step Action

1 In the TMA window, select the object line and the group Performance or Status.

2 In the action window of TMA, click the left mouse button on the field under the heading Argument Value.

⇒A drop down box appears.

3 In the drop down box, select the test you want to execute.


(Status + Performance group)

Default:00000d 00h 03m 00sRange: 00000d 00h 00m 01s -

00000d 18h 12m 15s



250

12.2.2 Error test

Initiating the ET test activates the internal error test pattern generator and detector. Possible errors which are received by the detector are accumulated in an internal register. The amount of errors can be seen with TMA, namely in the status attribute errorCount of the line object. The error LED on the front panel will also light.

When the central modem uses a Dual Port G703-Serial interface and the remote modem uses a different interface, then starting an ET test on the remote modem only gives erroneous results.

How to use this test?

Example:

Clocking during an ET test

When an ET test is activated, the Crocus SHDSL G703 switches to internal clocking mode.

Phase Description

1 Start an ET test on the local Crocus SHDSL G703.

⇒A test pattern is sent down the line.

2 Start an ET test on the remote Crocus SHDSL G703.

⇒The detector of the remote Crocus SHDSL G703 receives this test pattern, and looks for possible errors in the pattern. The quantity of errors could be an indication of the line quality.



251

12.2.3 Analogue loop

Initiating the AL test establishes an analogue loop on the local Crocus SHDSL G703. This loop is com-pliant to loop 3 as described in the ITU-T recommendation V.54.

The loop is situated immediately behind the analogue part of the local Crocus SHDSL G703, schemati-cally represented as follows:


Example:

In combination with the ET test, the AL test can also be used as a self-test of the Crocus SHDSL G703.

Clocking during an AL test

The following table shows what happens with the clocking on the Crocus SHDSL G703 when an AL test is activated:

Phase Description

1 Start an AL test on the local Crocus SHDSL G703.

⇒An analogue loop is established on the local Crocus SHDSL G703.

2 Send data with the application.

⇒If this data is received again by the application, the connection between the DTE and the Crocus SHDSL G703 is OK. If not, it is possible that there is a bad con-nection between the DTE and the Crocus SHDSL G703.

If the Crocus SHDSL G703 is in … and an AL test is activated, then it …

internal clocking mode remains in internal clocking mode.

external clocking mode remains in external clocking mode.

slave receive clocking mode switches to internal clocking mode.



252

12.2.4 Remote digital loop

Initiating the RDL test establishes a digital loop on the remote Crocus SHDSL G703. This loop is com-pliant to loop 2 as described in the ITU-T recommendation V.54.

The loop is situated immediately behind the digital part of the remote Crocus SHDSL G703, schemati-cally represented as follows:

Make sure that on the remote Crocus SHDSL G703 the rdlDetect attribute is set to enabled (refer to 6.6 - DTE Interface configuration attributes on page 148). Else it is not possible to initiate an RDL test on the remote.


Example:

Phase Description

1 Start an RDL-ET test on the local Crocus SHDSL G703.

⇒A digital loop is established on the remote Crocus SHDSL G703 and a test pattern is sent down the line.

2 Because the remote side is in a digital loop, the test pattern returns to the local Crocus SHDSL G703.

3 The detector receives this test pattern, and can compare it with the original transmitted pattern.

⇒The quantity of inconsistencies that might exist between the original and the returned pattern could be an indication of the line quality.



253

Clocking during an RDL test

The following table shows what happens with the clocking on the Crocus SHDSL G703 when an RDL test is activated:

If the … Crocus SHDSL G703 is in … and an RDL test is activated, then it ….

local internal clocking mode remains in internal clocking mode.

external clocking mode remains in external clocking mode.

slave receive clocking mode switches to internal clocking mode.

remote any clocking mode switches to slave receive clock-ing mode.



254

12.2.5 Digital loop

Initiating the DL test also establishes a digital loop, but on the local Crocus SHDSL G703 itself. This loop is compliant to loop 2 as described in the ITU-T recommendation V.54.

The loop is situated immediately behind the digital part of the remote Crocus SHDSL G703, schemati-cally represented as follows:


With this test, you can verify the same things as with the remote digital loop. The only difference is that the loop is not made on the remote Crocus SHDSL G703 (as with RDL), but on the local Crocus SHDSL G703. This can be necessary when, for example, the remote Crocus SHDSL G703 is unable to initiate a remote digital loop test.

Clocking during a DL test

When a DL test is activated, the Crocus SHDSL G703 switches to slave receive clocking mode.



255

12.3 Interface tests

For some DTE interfaces it is possible that the application (the DTE) initiates a test on the Crocus SHDSL G703 via the interface. The following table gives an overview of which tests are available on which inter-faces. It also gives a short description of the available tests.

• Note that also these tests are automatically terminated after the time-out period as set using the test-Duration attribute.

• The interface tests can be disabled via the tests attribute.

Available tests Description

Analog loop (AL) For …

• G703 the sending of the Sa6 bit sequence 1111

… initiates an analogue loop (loop 3) on the local Crocus SHDSL G703, in compli-ance with ITU-T recommendation V.54. Refer to 12.2.3 - Analogue loop on page 251.

Remote Digital Loop (RDL)

For …

• G703 the sending of the Sa6 bit sequence 1010

… initiates a digital loop (loop 2) on the remote Crocus SHDSL G703, in compli-ance with ITU-T recommendation V.54. Refer to 12.2.4 - Remote digital loop on page 252.



256


User manual Technical specifications

257

13 Technical specifications

This chapter gives the technical specifications of the Crocus SHDSL G703. The following gives an over-view of this chapter.

• 13.1 - Crocus SHDSL G703 types on page 258• 13.2 - Line specifications on page 259• 13.3 - RJ45 - RJ12 adapter specifications on page 261• 13.4 - Maximum covered distance on a noise free line on page 262• 13.5 - G703 interface specifications on page 263• 13.6 - Management interface connectors on page 264• 13.7 - Control connector on page 265• 13.8 - Diagnostic tests on page 266• 13.9 - Power requirements on page 267• 13.10 - Thermal behaviour when providing remote power on page 268• 13.11 - Environmental compliance on page 269• 13.12 - Safety compliance on page 270• 13.13 - Over-voltage and over-current protection compliance on page 270• 13.14 - EMC compliance on page 270• 13.15 - Mechanical dimensions on page 270



258

13.1 Crocus SHDSL G703 types

The following Crocus SHDSL G703 types exist:

- Crocus SHDSL TT G703- Crocus SHDSL 2P TT G703- Crocus SHDSL TT G703 RP- Crocus SHDSL 2P TT G703 RP



259

13.2 Line specifications

• Single pair or two pair line access• Full duplex transmission• Connector: RJ45• Impedance: 135 ohm• Coding: TC PAM, compliant to ITU-T G.991.2 (G.SHDSL)• Line speeds:

- 1 pair: N x 64 kbps (N = 1 … 36)- 2 pair: N x 128 kbps (N = 1 … 36)

• Handshaking: compliant to G.994.1 (automatic speed negotiation) or fixed speed• Performance monitoring: compliant to G.826 (errored seconds, severely errored seconds, unavaila-

bility seconds)• Round trip delay: 0.6 ms

In case of a G.703 Nx64k interface, the round trip delay ranges from 0.6 ms (unframed) over 0.8 ms (framed, all timeslots on) up to 3.1 ms (framed, 3 timeslots on).



260

• The following table shows the connector layout of the RJ45 line connector.

Pin Signal Figure

1 not used

2 not used

3 line 21

1. For a Crocus SHDSL G703 2P (2 pair) version only

4 line 1

5 line 1

6 line 21

7 not used

8 not used



261

13.3 RJ45 - RJ12 adapter specifications

If you have a line cable with an RJ12 connector, you first have to plug in the RJ45 to RJ12 adapter in the line connector of the Crocus SHDSL G703.

The following table shows the connector layout of the RJ12 adapter connector.

Pin Signal Figure

1 not used

2 line 21

1. For a Crocus SHDSL G703 2P (2 pair) version only

3 line 1

4 line 1

5 line 21

6 not used



262

13.4 Maximum covered distance on a noise free line

• These values are valid starting from Crocus SHDSL G703 PCB revision 1.2 and firmware revision T2141/00800, T2145/00600 and T2136/01300 and higher.

• If the Signal to Noise ratio is 23dB, this matches a noise margin of 0dB. A noise margin of minimum 2dB is considered a minimum for an error ratio that matches at least 10E-7 (= S/N ratio of 25dB). In performance tests with noise, a noise margin of 6dB is usually taken (matching S/N ratio 29dB). From experience, it can be concluded that a 27dB S/N ratio gives no errors, at 25dB errors are rare.

Covered distance (km)

Line speed (kbps) Wire diameter (mm)

1P 2P 0.4 0.5 0.6 0.7 0.8 0.9 1,1

64 128 11,0 15,1 21,5 22,5 27,2 34,6 39,3

128 256 8,0 11,0 15,6 16,4 19,8 25,2 28,6

256 512 8,2 11,3 16,0 16,8 20,3 25,8 29,3

512 1024 7,2 9,9 14,0 14,7 17,8 22,7 25,7

1024 2048 5,5 7,6 10,7 11,3 13,6 17,3 19,6

1536 3072 4,0 5,5 7,8 8,2 9,9 12,6 14,3

2048 4096 4,2 5,8 8,2 8,6 10,4 13,2 15

2304 4608 4,0 5,5 7,8 8,2 9,9 12,6 14,3



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13.5 G703 interface specifications

• Types: G703 and G703 Nx64k• Compliance: ITU-T G.703• Connector: 2 BNCs, 1 RJ45• Impedance: 75 or 120 ohm (strap selectable)• Coding: AMI or HDB3 (configurable)• Performance monitoring: compliant to G.826• Jitter and wander: compliant to G.823• Speed (G703): fixed 2 Mbps user and line speed• Speed (G703 Nx64k): fixed 2 Mbps user speed (for this interface, time slots have to be configured

instead of a user speed). Line speeds up to 2 Mbps.• Framing (G703 Nx64k): framed or unframed (configurable), framing compliant to G.704• Time slots (G703 Nx64k):

- 1 pair: N x 64 kbps (N = 1 … 32)- 2 pair: N x 128 kbps (N = 1 … 16)

• CRC4 insertion (G703 Nx64k): enabled, disabled or automatic detection (configurable), frame align-ment and cyclic redundancy check compliant to ITU-T G.706

• Defect detection: compliant to ITU-T G.775• The following table shows the connector layout of the RJ45 line connector.

Pin Signal DCE Figure

1 receive A (+) output

2 receive B (-) output

3 signal ground -

4 transmit A (+) input

5 transmit B (-) input

6 signal ground -

7 not used -

8 not used -



264

13.6 Management interface connectors

The possible management interface connectors are:

For all available management tools, refer to 1.6 - Maintenance and management tools connection pos-sibilities on page 11.

Management interface con-nector

Connector type Speed

asynchronous through the con-trol connector

9 pins subD (on the Crocus SHDSL G703)

9600 bps, 8+N

synchronous through a man-agement concentrator and the high speed bus

backplane DIN (on the CN4 card nest)

800 kbps



265

13.7 Control connector

The control connector (sometimes also called control port) is a 9 pins subD connector that is labelled CTRL. The signals on this connector are V.24 / V.28 signals.

The control connector layout

The control connector has the following pin layout:

Table Top

• The connection with the computer running TMA can be made with a straight 9 pins subD (Male/Female) cable or a regular 25/9 pins subD adapter cable.

• The cable which is used to connect the TT with the 1035 Orchid LAN management concentrator can be ordered at the distributor (code 149220).

Pin Signal DCE Figure

1 not used -

2 NMS RxD output

3 NMS TxD input

4 not used -

5 GND -

6 not used -

7 not used -

8 not used -

9 not used -



266

13.8 Diagnostic tests

The following diagnostic test are available on the Crocus SHDSL G703:

• Analogue Loop (AL)• Digital Loop (DL)• Remote Digital Loop (RDL)• Error Test (ET) (test pattern ITU 2E15-1)



267

13.9 Power requirements

The power requirements for the different Crocus SHDSL G703 types are as follows:

Pmax Input power

Version 230 Vac (85 à 265 Vac)1

1. Using switched AC/DC adapter, 230Vac → 12Vdc/1A, approx. 80% efficiency, sales code 202752.

-48 Vdc (-36 Vdc à -72 Vdc)2

2. Using the PST30 DC/DC adapter, 48Vdc → 12Vdc/1A, approx. 73% efficiency, sales code 191706.

G703 1P 12 Vdc 3 W -

G703 1P RP 3 W 4 W

G703 2P RP 4 W 5 W



268

13.10 Thermal behaviour when providing remote power

This section specifically refers to the Crocus SHDSL Card Verions that can be inserted in the CN4 rack, being the central part of the network (with a number of Crocus SHDSL TT ‘s at the remote side).

When using remote power, certain limitations apply with regards to the number of Card Versions that can be inserted in the CN4, CN4-4 and CN4-2 rack.

Not complying with these rules will result in irreversible damage to the device.

The following table gives an overview:

Rack Limitations

CN4-2 Thermal

• Only 1 card allowed that provides remote power.• This card must be inserted in the lowest of both slots where cooling is

more efficient.• Ambient temperature must not be higher than 50 °C.

Power

• DC or AC powering

CN4-4 Thermal

• Maximum 4 cards that provide remote power are allowed.• Natural cooling of the CN4-4 must be effective : the CN4-4 must be used

in an upright position, not lying flat on its side.• Ambient temperature must not be higher than 45 °C.

Power

• DC or AC powering.• AC powering with 300W PSU.• AC power redundancy is allowed (if 2 AC PSU 's are present).

CN4 Thermal

• If forced cooling is available, up to 12 cards delivering remote power can be installed.

• If only natural cooling is available, maximum 7 cards delivering remote power can be installed, provided that a slot is left free between each card.

• Ambient temperature must not be higher than 40 °C.

Power

• DC or AC powering• AC powering with 2 300W PSU 's.• No AC power redundancy allowed



269

13.11 Environmental compliance

• Storage conditions: ETSI ETS 300 019-1-1 Class 1.1. In addition, the storage temperature has to be between -25 to +70°C

• Transport conditions: ETSI ETS 300 019-1-2 Class 2.3• Stationary use conditions: ETSI ETS 300 019-1-3 Class 3.2. In addition, the requirements below

apply:- relative humidity 0 to 95% non-condensing and ambient operational temperature -10 to 50°C,

unless otherwise stated in 13.10 - Thermal behaviour when providing remote power on page 268• Maximum altitude: 3000m• International protection (IP) class of protection against solid and liquids: IP40



270

13.12 Safety compliance

• EN60950-1• Class 1 equipment for Table Tops with 115/230 Vac internal power supply.• Class 3 equipment for …

- Table Tops with 115/230 Vac external power supply adapter- Table Tops with -48 Vdc internal power supply- Card Versions.

13.13 Over-voltage and over-current protection compliance

The over-voltage and over-current protection complies with ITU-T K.44 and ETSI ETS 300 386-2 recom-mendations.

13.14 EMC compliance

• EN55022 B Emissions• EN55024 Immunity• EN61000-3-2 Harmonics• EN61000-3-3 Voltage fluctuations and flicker• EN61000-4-2 ESD• EN61000-4-3 Radiated immunity• EN61000-4-4 EFT/burst• EN61000-4-5 Surge• EN61000-4-6 Conducted immunity• EN61000-4-8 Power magnetic field immunity• EN61000-4-11 Voltage dips & drops• ENV50204 Radiated immunity against digital radio telephone

13.15 Mechanical dimensions

The mechanical dimensions are as follows:

Dimensions Table Top

height (mm) 45

width (mm) 220

depth (mm) 215 excl. interface

235 incl. interface

weight (kg) 0.75 (excl. interface)

Crocus SHDSL G703

Annex

271

Annex

Crocus SHDSL G703

Annex

272

Crocus SHDSL G703 Annex A:

Annex product information

273

Annex A: product information

The following table displays the product information of the Crocus SHDSL basic units.

Sales code Product name Description

180055 Crocus SHDSL RJ45 TT BU VAC Crocus SHDSL table top on 1 line pair, Basic Unit, no interface provided. Interface module available as separate sales item. wide-range Vac (Replacement for code 170814)

180056 Crocus SHDSL RJ45 TT BU 48VDC Crocus SHDSL table top on 1 line pair, Basic Unit, no interface provided. Interface module available as separate sales item. 48 Vdc (Replacement of code: 171284)

180054 Crocus SHDSL +LCD RJ45 TT BU VAC Crocus SHDSL table top on 1 line pair, Basic Unit, Keyboard and LCD for local programming, no interface provided. Interface module available as separate sales item. wide-range Vac (Replacement of code: 177936)

180053 Crocus SHDSL 2P RJ45 TT BU VAC Crocus SHDSL table top on 2 line pairs for longer distances or speeds up to 4Mbit/s, Basic Unit, no interface provided. Interface module available as separate sales item. wide-range Vac (Replacement for code 171975)

171976 Crocus SHDSL 2P TT BU 48VDC Crocus SHDSL table top on 2 line pairs for longer distances or speeds up to 4Mbit/s, Basic Unit, no interface provided. Interface module available as separate sales item. 48 Vdc

177938 Crocus SHDSL 2P +LCD TT BU VAC Crocus SHDSL table top on 2 line pairs for longer distances or speeds up to 4Mbit/s, Basic Unit, Keyboard and LCD for local programming, no interface provided. Interface module available as separate sales item. wide-range Vac (Only manufactured after order!)

177939 Crocus SHDSL 2P +LCD TT BU 48VDC Crocus SHDSL table top on 2 line pairs for longer distances or speeds up to 4Mbit/s, Basic Unit, Keyboard and LCD for local programming, no interface provided. Interface module available as separate sales item. 48 Vdc. (Only manufactured after order !)

193491 CROCUS SHDSL3 TWIN-CV BU Crocus SHDSL twin CV on 1 line pair, suitable for CN4. Can alternatively be used as single 2 line pair modem. Basic Unit, no interfaces provided. Interface modules (1 or 2 modules required) available as separate sales items. (Replacement of code: 180057

193492 CROCUS SHDSL3 2P TWIN-CV BU Crocus SHDSL CV on 2 line pairs for longer distances or speeds up to 4Mbit/s, suitable for CN4. Basic Unit, no interfaces provided. Interface modules available as separate sales items. (Replacement of code: 171977)

177937 CROCUS SHDSL +LCD TT BU 48VDC Replaced by item 180056. Crocus SHDSL table top on 1 line pair, Basic Unit, Keyboard and LCD for local programming, no interface provided. Interface module available as separate sales item. 48 Vdc (Only manufactured after order !)

181080 CROCUS SHDSL TT G703 230VAC Crocus SHDSL table top on 1 line pair with fixed G703 onboard interface. Includes European 230VAC external power adapter



274

178713 CROCUS SHDSL 2P TT G703 RP Crocus SHDSL table top on 2 line pairs with fixed G703 onboard interface. Remotely powered. Can locally be powered directly with -48Vdc or via an external power plug, not included, on Vac. (Suitable power plug 175590 PWR-PLUG (EUR VERSION) 230VAC >9VDC)

178715 CROCUS SHDSL TT G703 RP Crocus SHDSL table top on 1 line pair with fixed G703 onboard interface. Remotely powered. Can locally be powered directly with -48Vdc or via an external power plug, not included, on Vac. (Suitable power plug 175590 PWR-PLUG (EUR VERSION) 230VAC >9VDC)

181081 CROCUS SHDSL TT G703 NPWR Crocus SHDSL table top on 1 line pair with fixed G703 onboard interface. Delivered without power adapter

196336 CROCUS SHDSL 2P TT G703 230VAC Crocus SHDSL table top on 2 line pairs with fixed G703 onboard interface. Includes European 230VAC external power adapter

196337 CROCUS SHDSL 2P TT G703 NPWR Crocus SHDSL table top on 2 line pairs with fixed G703 onboard interface. Delivered without power adapter

181082 CROCUS SHDSL TT RS530 230VAC Crocus SHDSL table top on 1 line pair with fixed RS530 onboard interface (V35, V36 & X21 through conversion cables, not included). Includes European 230VAC external power adapter

181083 CROCUS SHDSL TT RS530 NPWR Crocus SHDSL table top on 1 line pair with fixed RS530 onboard interface (V35, V36 & X21 through conversion cables, not included). Delivered without power adapter

178716 CROCUS SHDSL TT RS530 RP Crocus SHDSL table top on 1 line pair with fixed RS530 onboard interface (V35, V36 & X21 through conversion cables, not included). Remotely powered. Can locally be powered directly with -48Vdc or via an external power plug, not included, on Vac.

178714 CROCUS SHDSL 2P TT RS530 RP Crocus SHDSL table top on 2 line pairs with fixed RS530 onboard interface (V35, V36 & X21 through conversion cables, not included). Remotely powered. Can locally be powered directly with -48Vdc or via an external power plug, not included, on Vac.

196338 CROCUS SHDSL 2P TT RS530 230VAC Crocus SHDSL table top on 2 line pairs with fixed RS530 onboard interface (V35, V36 & X21 through conversion cables, not included). Includes European 230VAC external power adapter




275

196339 CROCUS SHDSL 2P TT RS530 NPWR Crocus SHDSL table top on 2 line pairs with fixed RS530 onboard interface (V35, V36 & X21 through conversion cables, not included). Delivered without power adapter

191706 PWR-PLUG +/-48/24VDC FOR 7,5 /12VDC CPE DEVICES

Wallplug power module with input range: 18 to 72Vdc and output: 7,5 / 12Vdc for Desktop units delivered without power adapter. (xxx NPWR). Fully isolated input. Suitable for + & - DC input voltages. See doc OneAccess Product Quick Reference for compatibility with xxx NPWR item

202752 PWR-PLUG (EUR VERSION) 230VAC->12VDC Wallplug Switched Power Module EUR type, 230Vac -> 12Vdc for Desktop units delivered without power adapter. (xxx NPWR). See doc OneAccess Product Quick Reference for compatibility with xxx NPWR item




276

The following table displays the product information of the Crocus SHDSL DTE interfaces.


143666 V35 INTF. CROCUS Plug-in modular interface V.35 transparent.

142199 V36 INTF.CROCUS Plug-in modular interface V.36 transparent.

161611 RS-530 INTF.CROCUS Plug-in modular interface RS-530 transparent.

142200 X21 INTF.CROCUS Plug-in modular interface X.21 transparent.

175253 G703 INTF 2M CROCUS G.703 interface module for the Crocus SHDSL. Can only work with line speed 2Mbit/s. BNC connectors.

175254 G703 INTF NX64K CROCUS G.703 interface module for the Crocus SHDSL. Can work with line speeds below 2Mbit/s. BNC connectors.

150466 BRIDGE INTF.CROCUS Plug-in modular interface Ethernet Bridge for direct UTP LAN connection. IEEE 802.3 compliant.

161613 ROUTER 2M INTF.CROCUS Plug-in modular interface Ethernet Router for direct UTP LAN connection. IEEE 802.3 compliant. Limited to 2M.

177455 ROUTER 10M INTF.CROCUS Plug-in modular interface Ethernet Router for direct UTP LAN connection. IEEE 802.3 compliant. Up to 10M.



277

The following table displays cables to be used in combination with the Crocus SHDSL RS530:

The following table displays the product information of the CN7:


182968 CBL DCE RS530 (DB25M) - DTE V36M SH 2M Data-Cabling for TOP items: Serial CBL. See doc OneAccess Access Product Quick Reference. For application, details and pin layout see document: -Data cables- on the OneAccess Product dBase. -> Cable layout-19

182969 CBL DCE RS530 (DB25M) - DTE V36M SH 5M Data-Cabling for TOP items: Serial CBL. See doc OneAccess Access Product Quick Reference. For application, details and pin layout see document: -Data cables- on the OneAccess Product dBase. -> Cable layout-19

182970 CBL DCE RS530 (DB25M) - DTE X21M SH 2M Data-Cabling for TOP items: Serial CBL. See doc OneAccess Access Product Quick Reference. For application, details and pin layout see document: -Data cables- on the OneAccess Product dBase. -> Cable layout-20

182971 CBL DCE RS530 (DB25M) - DTE X21M SH 5M Data-Cabling for TOP items: Serial CBL. See doc OneAccess Access Product Quick Reference. For application, details and pin layout see document: -Data cables- on the OneAccess Product dBase. -> Cable layout-20


198344 Card nest CN7 ETSI card nest with 17 slots, 7U high.

198346 Crocus SHDSL G703 NX64K TWIN-CN7 RP SHDSL card with 2 single pair SHDSL modems with each a G703 interface and remote power feeding. Fits into CN7. Line speeds 192- 2048 kbps.

198347 Crocus SHDSL 2P G703 NX64K TWIN-CN7 RP SHDSL card with 2 dual pair SHDSL modems with each a G703 interface and remote power feeding. Fits into CN7. Line speeds 384 - 2048 kbps.

202755 Crocus SHDSL G703 NX64K TWIN-CN7 SHDSL card with 2 single pair SHDSL modems with each a G703 interface. Fits into CN7. Line speeds 192- 2048 kbps.

202756 Crocus SHDSL 2P G703 NX64K TWIN-CN7 SHDSL card with 2 dual pair SHDSL modems with each a G703 interface. Fits into CN7. Line speeds 384 - 2048 kbps.

198345 Orchid CN7 Management concentrator card for CN7. Includes a CTRL interface for local management and an Ethernet interface for remote management.

203420 Crocus SHDSL 2P G703 NX64K Repeater indoor RP/NPWR

Desktop SHDSL 2 pair repeater. Remotely powered or locally powered (external power adapter not included). Suitable for indoor use.

203421 Crocus SHDSL G703 NX64K RJ45 TT 230VAC Desktop SHDSL single pair modem with a G703 interface with 120 Ohm RJ45 connector and 75 Ohm BNC connectors and local 230VAC powering. Line speeds 192 - 2048 kbps.

203422 Crocus SHDSL G703 NX64K RJ45 TT 48VDC Desktop SHDSL single pair modem with a G703 interface with 120 Ohm RJ45 connector and 75 Ohm BNC connectors and local 48Vdc powering. Line speeds 192 - 2048 kbps.



278

203423 Crocus SHDSL G703 2M RJ45 TT RP Desktop SHDSL single pair modem with a G703 interface with 120 Ohm RJ45 connector and remote powered. Line speed 2Mbps.

203455 CROCUS SHDSL G703 NX64K RJ45 TT RP Desktop SHDSL single pair modem with a G703 interface with 120 Ohm RJ45 connector and remote powered. Line speeds 192 - 2048kbit/s

203424 Crocus SHDSL G703 NX64K RJ45 TT RP/NPWR Desktop SHDSL single pair modem with a G703 interface with 120 Ohm RJ45 connector and 75 Ohm BNC connectors and remote powered. Connector for local powering (power adapter not included). Line speeds 192 - 2048 kbps.

203425 Crocus SHDSL 2P G703 NX64K RJ45 TT 230VAC

Desktop SHDSL 2 pair modem with a G703 interface with 120 Ohm RJ45 connector and 75 Ohm BNC connectors and local 230VAC powering. Line speeds 384 - 2048 kbps.

203426 Crocus SHDSL 2P G703 NX64K RJ45 TT 48VDC Desktop SHDSL 2 pair modem with a G703 interface with 120 Ohm RJ45 connector and 75 Ohm BNC connectors and local 48Vdc powering. Line speeds 384 - 2048 kbps.

203427 Crocus SHDSL 2P G703 2M RJ45 TT RP Desktop SHDSL 2 pair modem with a G703 interface with 120 Ohm RJ45 connector and 75 Ohm BNC connectors and remote powered. Line speed 2Mbps

203457 CROCUS SHDSL 2P G703 NX64K RJ45 TT RP Desktop SHDSL 2 pair modem with a G703 interface with 120 Ohm RJ45 connector and remote powered. Line speeds 192 - 2048kbit/s

203428 Crocus SHDSL 2P G703 NX64K RJ45 TT RP/NPWR

Desktop SHDSL 2 pair modem with a G703 interface with 120 Ohm RJ45 connector and 75 Ohm BNC connectors and remote powered. Connector for local powering (power adapter not included). Line speeds 384 - 2048 kbps.

191706 PWR-PLUG +/-48/24VDC FOR 7,5 /12VDC CPE DEVICES

Wallplug power module with input range: 18 to 72Vdc and output: 7,5 / 12Vdc for Desktop units delivered without power adapter. (xxx NPWR). Fully isolated input. Suitable for + & - DC input voltages. See doc OneAccess Product Quick Reference for compatibility with xxx NPWR item

202752 PWR-PLUG (EUR VERSION) 230VAC->12VDC Wallplug Switched Power Module EUR type, 230Vac -> 12Vdc for Desktop units delivered without power adapter. (xxx NPWR). See doc OneAccess Product Quick Reference for compatibility with xxx NPWR item


Crocus SHDSL G703 Annex B:

Annex abbreviations

279

Annex B: abbreviations

The following table gives a list of abbreviations and their description.

Terms/abbrevi-ations

Description

-48Vdc -48 Volts - Direct Current

1P 1 pair

2P 2 pair

4P 4 pair

12Vdc 12 Volts - Direct Current

ABR Available Bit Rate

ADSL Asymmetric Digital Subscriber Line

AIS Alarm Indication Signal

AL Analogue Loop

AL-ET Analogue Loop - Error Test

AMI Alternate Mark Inversion

ARP Address Resolution Protocol

ATM Asynchronous Transfer Mode

BOOTP Bootstrap Protocol

bps bits per second

C-Side Customer Side

CBR Constant Bit Rate

CCP Compression Control Protocol

CHAP Challenge Handshake Authentication Protocol

CLI Command Line Interface

CN7 Card Nest 7

CO Central Office

CPE Customer Premises Equipment

CRC Cyclic Redundancy Check

CTRL Control

CTS Clear To Send

CV Card Version

CV Twin Card Version Twin

CV-A Card Version modem A

CV-B Card Version modem B

dB decibel


Annex abbreviations

280

DCD Data Carrier Detect

DCE Data Communications Equipment

DHCP Dynamic Host Configuration Protocol

DIP Dual In line Pin

DL Digital Loop

DLCI Data Link Connection Identifier

DP Dual Power/ Dual Port

DS Dip Switch bank

DSLAM Digital Subscriber Line Access Multiplexer

DTE Data Terminal Equipment

EB Errored Block

EMC Electromagnetic Compatibility

EOC Embedded Operations Channel

ERR Error

ES Errored Second

ESD Electrostatic Discharge

ExtTxClk External Transmit Clock

ET Error Test

ETSI European Telecommunications Standards Institute

FAS Frame Alignment Signal

FR Frame Relay

FS Fuse

FTP File Transfer Protocol

Gb Gigabit

GB Gigabyte

Gbps Gigabits Per Second

G703 G703 interface

HDB3 High Density Bipolar 3

HDLC High-level Data Link Control

ICMP Internet Control Message Protocol

if Interface

IGMP Internet Group Management Protocol

IMAP Integrated Multi-service Access Platform


Description


Annex abbreviations

281

IP Internet Protocol

IPCP Internet Protocol Control Protocol

IPSEC Internet Protocol Security

ITU-T International Telecommunication Union - Telecommunication Standardization Sector

Kb Kilobit

KB Kilobyte

Kbps Kilobits Per Second

L2TP Layer 2 Tunnelling Protocol

LAN Local Area Network

LCP Link Control Protocol

LED Light Emitting Diode

LFA Loss of Frame Alignment

LOS Loss Of Signal

LTU Line Terminating Unit

MAC Media Access Control

Mb Megabit

MB Megabyte

Mbps Megabits Per Second

MIB Management Information Base

N-side Network Side

NAT Network Address Translation

NCP Network Control Protocols

NMS Network Management System

NTU Network Terminating Unit

PAP Password Authentication Protocol

PAT Port Address Translation

PCB Printed Circuit Board

PCR Peak Cell Rate

PDH Plesiochronous Digital Hierarchy

PPP Point-to-Point Protocol

PPPoA PPP over ATM

PPPoE PPP over Ethernet

PVC Permanent Virtual Circuits


Description


Annex abbreviations

282

PWR Power

RAI Remote Alarm Indication

RDL Remote Digital Loop

RDL-ET Remote Digital Loop - Error Test

RFC Request For Comments

RIP Routing Information Protocol

RP Remote Power

RS530 RS530 interface

RTS Request To Send

Rx Receive

RxClk Receive Clock

RxD Receive Data

SA Security Association

SDH Synchronous Digital Hierarchy

SELV Safety Extra Low Voltage

SES Severely Errored Second

SHDSL Symmetric High-Bitrate Digital Subscriber Line

SNMP Simple Network Management Protocol

SPI Security Parameter Index

SQ Signal Quality

SSR Solid State Relay

ST Strap

TCP Transmission Control Protocol

TC-PAM Trellis Coded Pulse Amplitude Modulation

TFTP Trivial File Transfer Protocol

TMA Total Management Application

TMA CLI TMA Command Line Interface

TML Total Memory Loader

TNV Telecom Network Voltage

TS Timeslot

TST Test

TT Table Top

Tx Transmit


Description


Annex abbreviations

283

TxClk Transmit Clock

TxD Transmit Data

UBR Unspecified Bit Rate

UDP User Datagram Protocol

Vac Volts - Alternate Current

VBR Variable Bit Rate

VBR-rt Variable Bit Rate real-time

VBR-nrt Variable Bit Rate non-real-time

VCI Virtual Channel Identifier

Vdc Volts - Direct Current

VLAN Virtual Local Area Network

VPN Virtual Private Networks

VPI Virtual Path Identifiers

WAN Wide Area Network


Description


Annex abbreviations

284

Crocus SHDSL G703 Index

Annex

1

Index

Aabsolute addressing

use 101

access to PDH networks 73examples 74synchronisation 73

access to SDH networks 76asynchronous or synchronous 76DXC 77examples 78typical 2 Mbit/s connections 76

accessing PDH and SDH networksclocking 65

action, what is 49

activatingconfiguration 115

alarm attributes 207configuration 211general 215introduction 210overview 208

alarm signalling 217

alarmsend 226general 218interface 229line 221line pair 223repeater 226

analogue loop 251

application softwarewhat is 236, 239

attribute - actionactivate configuration 129clearErrorCounter 170Cold Boot 162cold boot 130load default configuration 116, 129load saved configuration 130loopbackActivation 179maximumSpeedSearch 171

attribute - alarmalarmInfo 216, 219, 222, 224, 227, 230alarmLevel 212alarmMask 212Cold Boot 220remoteAlarmMask 214totalAlarmLevel 216

attribute - configurationaisDetection 149

alarmContactHighMasktop object 128

alarmContactLowMasktop object 128

alarmLeveldteInterface object 150line object 144linePair object 146top object 128

alarmMaskdteInterface object 150line object 144linePair object 146top object 128

asymmetricPsd 138channel 54, 132clocking 83, 150cms2Address 152coding 98, 149consoleNoTrafficTimeOut 152crc4Insertion 98ctrlPortProtocol 102, 153dualPairMode 143eocChannel 56, 139eocHandling 59, 139forwardTmaToCtrlPort 103, 128forwardTmaToLine 103, 128framing 94linkAlarmThresholds 140management 105, 142minLinePairSpeed 89, 135mode 55, 134name 142, 150numExpectedRepeaters 139rdlDetect 150region 54, 132remoteAlarmMask

top object 128retrain 135saBits 106security 127sqThreshold 149sqTime 149startupMargin 138sysContact 127sysLocation 127sysName 127testDuration 138, 249timeSlots 95, 149timingMode 64, 133txEocMessages 139

attribute - performance<h2/h24/d7>G703Performance 201<h2/h24/d7>G826Performance 202<h2/h24/d7>Line 194<h2/h24/d7>LineParameters 197<h2/h24/d7>Performance 198clearErrorCounter 195


Annex

2

currUsedProcPower 205errorCount 194freeBlockCount 205freeDataBuffers 205freeMemory 205g703Performance 201g826Performance 202largestFreeBlockSize 205line 194lineParameters 197performance 198retrain 195taskInfo 206testActivation 195, 202, 249totalDataBuffers 205totalMemory 205usedProcPower 206

attribute - statusactualBitRate 174ais 181asymmetricPsd 169bootVersion 161configurationSaving 161deviceId 161eocAlarmThresholds 170, 178eocSoftVersion 177eocState 177errorCount 169flash1Version 162framerType 166ifClocking 183ifDescr 164, 182ifOperStatus 164, 173, 183ifSpeed 164, 173, 183ifType 164, 183lfa 182lineAttenuation 174, 179linePairsSwapped 169loaderVersion 161los 181maxLinePairSpeed 165maxSpeedResult 168maxSpeedSearch 168messages 160minLinePairSpeed 164numDiscoveredRepeaters 169powerSource 162region 169shdslVersion 177signalNoise 174, 179status 173stepupThreshold 174sysDescr 160sysObjectID 160sysServices 160sysUpTime 160taskInfo 185testOriginator 167

testStatus 167testType 166timeSinceLastRetrain 173timeSlots 181transmitPower 174vendorId 176vendorModel 176vendorSerial 176vendorSoftVersion 176

attribute string, reading viii

attribute, what is 49

Bbasic configuration

passwords 111

basic line parametersconfiguring 54

boot softwarewhat is 236, 237

Cchanging DIP switch settings

of the TT 39

changing strap settingsof the TT 39

clockingaccessing PDH and SDH networks 65

clocking modeconfiguring 82configuring on the Crocus SHDSL G703 83

compatibility with other SHDSL devices 119

configurationactivating 115alarm attributes 211

configuration actionsexecuting 113what is 114

configuration attributes 123general 126interface 148line 131line pair 145management 151overview 124

configuration types 114

configuringbasic line parameters 54clocking mode 82clocking mode on the Crocus SHDSL G703

83EOC handling 57framing 93interface specific attributes 98


Annex

3

management attributes 99management data on a G703 interface 106management data on the line 105minimum line speed 87time slots 93timing mode 64

connectingCrocus SHDSL TT 20line to Table Top 24power supply 22

containment tree 50terminology 48what is 49

control connectorforwarding management data 103selecting the purpose 102specifications 265

conventions in this manualgraphical viitypographical vi

copyright notice iiCrocus SHDSL

attribute overview 51connecting the TT 20DIP switches 33features 4introduction 3maintaining 41product overview 5straps 33types 258

crocusShdslTtRpG703 143

Ddata carrier detect LED (DCD/109) 32

diagnostic tests 245introduction 246specifications 266

digital loop 254

DIP switch table, reading viii

DIP switches 33changing settings of the TT 39of the TT 34, 36

displaying the subsystem picture 232

documentconventions

graphical viitypographical vi

copyright notice iidocumentation set venvironmental information ivfirmware version described in this ixintended audience ix

organisation vproperties iistatements iiiyour feedback ix

documentation set vdownloading

in loader mode 243with TMA 241with TML 242

EEMC compliance

specifications 270

endalarms 226performance attributes 199status attributes 175

environmental compliancespecifications 269

environmental information ivEOC

configuring handling 57discovering devices on the SHDSL line 60EOC handling attribute 59retrieved information 60what is 58

error test 250

examplemanagement over the line and the control

port 107management over the line and the E1 inter-

face 109

executing configuration actions 113

Ffeedback ixfirmware

version ixforwarding management data to the line and

control connector 103

framed modeselecting 94

framingconfiguring 93

front panel LEDsindicators 30introduction 31

GG703 interface

configuring management data 106interface performance attributes 200


Annex

4

specifications 263

generalalarm attributes 215alarms 218configuration attributes 126status attributes 159

group, what is 49

IIdentification iximportant download issues 240

important remarkon the minimum line pair speed 88

installation and connection precautions 19

Installing and connecting 13

interfacealarms 229configuration attributes 148status attributes 180tests 255

interface performance attributesG703 interface 200

interface specific attributesconfiguring 98

introducingmaintenance and management tools 9

introductionalarm attributes 210Crocus SHDSL 3diagnostic tests 246front panel LEDs 31management attributes 47performance terms 192performance timing 191TMA 43

LLED

data carrier detect (DCD/109) 32power (PWR) 32serial (SERIAL) 32

LED indicatorsfront panel 30

linealarms 221configuration attributes 131configuring management data 105forwarding management data 103performance attributes 193specifications 259status attributes 163tests 247

line pairalarms 223configuration attributes 145performance attributes 196status attributes 172

line test action 248

load default configuration 115action in TMA 116using a DIP switch 117

loader softwarewhat is 236, 238

low speed limitations on the G703 Nx64k inter-faces 97

Mmaintaining the Crocus SHDSL 41

maintenance and managementconnection possibilities 11

maintenance and management toolsintroducing 9

managementconfiguration attributes 151rules of thumb and remarks 100

management attributesconfiguring 99

management interface connectorsspecifications 264

management toolsentering passwords 112

maximum covered distance on a noise free linespecifications 262

mechanical dimensionsspecifications 270

minimum line pair speedattribute 89important remark 88purpose 92

minimum line speedconfiguring 87

motherboardTable Top 35

Nnetwork clocking principles 67

central clock 67hierarchical structure 67station clock 67

Oobject, what is 49

operating system


Annex

5

performance attributes 204status 184

organisation of this manual vover-current protection compliance

specifications 270

overviewalarm attributes 208configuration attributes 124performance attributes 188remote power operation 27status attributes 156

over-voltage protection compliancespecifications 270

Ppasswords

adding to the security table 112basic configuration 111entering in the different management tools

112

PDH networks 68asynchronous tributaries 68disadvantages 69gateways 69timing 69

performance attributes 187end 199line 193line pair 196operating system 204overview 188repeater 199

performance termsintroduction 192

performance timingintroduction 191

possible clocking modes versus DTE interface 86

Power back-off 8power LED (PWR) 32

power requirementsspecifications 267

power supplyconnecting 22

product information 273, 279DTE interfaces 276

product overviewCrocus SHDSL 5

purpose of the minimum line pair speed 92

Rreading

a DIP switch table viiian attribute string viii

relative addressinguse 101

remarks ondualPairMode attribute 143opening the housing 34RP sink 28selecting a site 16

remote digital loop 252

remote powerwhat is 26

remote power operation 25overview 27

remote power sink operationhow? 28

repeateralarms 226performance attributes 199status attributes 175use 29

RJ45 - RJ12 adapterspecifications 261

rules of thumb and remarks concerning manage-ment 100

Ssafety

instructions 14requirements iisafety compliance specifications 270

SDH networks 70network elements 71redundant ring structures 72SDH hierarchy 70synchronisation 72

security tableadding passwords 112

selectinga site 16purpose of the control connector 102time slots 95unframed or framed mode 94

serial LED (SERIAL) 32

signal and protective ground interconnection 23

software download 235

specificationscontrol connector 265Crocus SHDSL types 258diagnostic tests 266EMC compliance 270environmental compliance 269


Annex

6

G703 interface 263line 259management interface connectors 264maximum covered distance on a noise free

line 262mechanical dimensions 270over-current protection compliance 270over-voltage protection compliance 270power requirements 267RJ45 - RJ12 adapter 261safety compliance 270

starting a TMA sessionthrough a management concentrator 46through the control connector 44

starting TMA on the Crocus SHDSL 42

statements iiistatus attributes 155

end 175general 159interfaces 180line 163line pair 172overview 156repeater 175

step-by-step configuration 53

straps 33changing settings of the TT 39of the TT 34, 37

structured value, what is 49

subsystem picturedisplay 232elements 233

synchronous interfaces 80data transfer 80exchange of clock signals 81

TTable Top

connections 21motherboard 35

technical specifications 257

time slotsconfiguring 93selecting 95transposition 96

timing modeconfiguring 64

TMA subsystem picture 231

transpositiontime slots 96

troubleshooting 118

Uunframed mode

selecting 94

unpacking 15

usinga repeater 29relative or absolute addressing 101

Vvalue, what is 49

Wwall mounting 17

warningEMC 19ESD 19important safety instructions 14safety warning 14

what isapplication software 236, 239boot software 236, 237containment tree 49EOC 58loader software 236, 238remote power 26

Crocus Shdsl g703

Documents