02_2012e5_dlu

Digital Line Unit (DLU) Siemens

SN2012E5A021

ObjectivesObjectivesObjectivesObjectives

The participant is able to� name the units of the DLUB and DLUD and their functions� localize the modules of the DLUB and DLUD� maintain the DLUB and DLUD� operate the DLUB and DLUD

ContentsContentsContentsContents

1 Functional Description 31.1 Introduction 41.2 Overview: DLU HW Types 81.3 Hardware 102 MML Commands 352.1 Creation of DLU 362.2 Creation of DLU Modules 382.3 Creation of RCU 422.4 Configuration, Test and Diagnosis for DLU 442.5 CONF and STAT-CMD for RCU 583 Exercise 614 Solution 69

-Register-Dat ei

Digital Line Unit (DLU)Digital Line Unit (DLU)Digital Line Unit (DLU)Digital Line Unit (DLU)

Siemens Digital Line Unit (DLU)

SN2012E5A022


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1111 Functional DescriptionFunctional DescriptionFunctional DescriptionFunctional Description


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1.11.11.11.1 IntroductionIntroductionIntroductionIntroductionThe DLU is used as a digital concentrator for the connection of subscribers tothe EWSD.

Connectivity:

Analog connectivity is for:

� Main station lines with pulse dialing, pushbutton dialing, call charge display

� Coinbox telephones

� Small analog private branch exchanges with/without direct-inward-dialing

Digital connectivity is for:

� ISDN Basic Accesses

� Small digital private branch exchanges

Connection of an access network (AN) via V5.1 interface

Connection capacity and expansion possibility of a DLU

Depending on used module types and required traffic volume:

� up to approx. 900 analog subscriber lines or

� up to approx. 800 digital subscriber lines (ISDN BAs)

� up to 32 V5.1 interfaces

� Mixture of analog subscribers, digital subscribers and V5.1 interfaces in view ofthe fact that max. 120 calls can be held simultaneously

Expansion in small modular steps:

� Each with an analog subscriber line module (SLMA for 16 subscribers)

� Each with an digital subscriber line module (SLMD for 16 subscribers)

� Each with a subscriber line module (SLMX) for two V5.1 interfaces with 32subscribers each (access network – AN)


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a/borUor

V5.1interfaces

DLU• Concentration

of the subscriber accesses

• Analog/digital conversion for analog subscribers

Modules SLM for the connection of– a/b interfaces

(SLMA with 16 subscriber line circuits – SLCA)

– U interfaces (SLMD with 16 subscriber line circuits – SLCD)

– V5.1 interfaces (SLMX with two V5.1 interfaces)

Analog 2 wire interface fora/b connection

Digital 2 wire interface forbasic access (BA)

2 Mbit/s PDC

• Analog subscribers

• Small PSTN P(A)BX

• Digital subscribers

• Small ISDN P(A)BX

• V5.1 interface to the AN

Fig. 1


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Structure of the DLU interface to LTG:

� The DLU can be used locally in the exchange or remotely in the vicinity of thesubscriber. All features are regardless of whether the DLU is operated locally orremotely.

� The DLU is connected to the LTG by a maximum of four primary digital carriers(PDC), whereas a DLU is linked with two LTGs as a rule for reasons of availability.It is also possible to connect the local DLU to the LTG by two 4096 kbit/s routesinstead of four 2Mbit/s routes.

� Each of the max. 4 PDC offers 30 user channels (each 4 Mb/s interface offers 60user channels)

� Each user channel can be used by any subscriber of the DLU

� Common channel signaling (CCS):

Channel 16 in the first and third PDC is used for the transmission of controlinformation messages between the DLU and the line/trunk groups (LTGs).

Here channel 16 on the first PDC transmits the control information messages forthe 60 user channels to PDC1 and 2, and channel 16 on the third PDC the controlinformation messages for the user channels to PDC 3 and 4.

For the local DLU interface, channel 32 on both 4096-kbit/s connections is usedfor CCS.


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PDC3

DLU LTG

LTGDLU

Local applicationPDC0

PDC1

PDC2

CCS

CCS

CCS

CCS

PDC3

PDC0

PDC1

PDC2

Remote application

DLU LTG

CCSPDC0

PDC1

– 60 user channels– one CCS time slot between DLU control DLUC

and LTG control GP – alternative: 1 x 4 Mbit/s for local DLU interface

Fig. 2


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1.21.21.21.2 Overview: DLU HW TypesOverview: DLU HW TypesOverview: DLU HW TypesOverview: DLU HW TypesSince the first issue of a DLU the frame and rack hardware was redesigned severaltimes in order to optimize the DLU HW concerning the required size and the numberof connected subscriber lines.

DLU A:This is the oldest DLU HW type. It contains SLM modules with max. 8 subscribercircuits (e.g. SLMA:COS or SLMD:B). One fully equipped DLU A is housed in onerack R:DLU. A maximum of 952 analog or 928 digital subscribers with a trafficvolume of 0.1ERL each can be connected to a DLU A. One DLU A can consist of:

� 1 frame F:DLU(A)

� 0, 1, 2 or 3 frames F:DLU(B) depending on the number and the traffic volume ofthe subscribers

DLU B:This is the DLU HW type currently used in most EWSD switches. It contains SLMmodules with max.16 subscriber circuits (e.g. SLMA:FPE or SLMD:QFB) or SLMX forconnection of V5.1 interfaces. Two fully equipped DLU B are housed in one rackR:DLUB. A maximum of 1760 analog or 1536 digital subscribers with a traffic volumeof 0.1ERL each can be connected to a rack R:DLUB. One DLU B can consist of:

1 frame F:DLU(D)0 / 1frame F:DLU(E) depending on the number / the traffic volume of the subscribers

DLU D (also called DLU B type D):This is the latest DLU HW type. The main difference to the DLUB is a new moreintegrated solution for the central parts of the DLU. This offers mounting locationsfor 4 additional SLMA:FPE modules or for transmission technology to connect one orseveral remote DLU to EWSD. One DLU D can consist of:

1 frame F:DLU(G)0 / 1frame F:DLU(E) depending on the number / the traffic volume of the subscribers

DLU Shelter 400:Shelters are metal enclosures which can be installed in the open air or in any room.The DLU Shelter 400 contains following equipment:One DLU shelter 400 consists of:

basic frame of DLUB (368 analog subscribers) or DLUD (432 analog subscribers)transmission equipmentmain distribution framestandby battery

DLU VThe new DLU type DLUV can be used as an alternative to SLMX in the standardDLU. Access networks can be connected to a DLUV exclusively by V5.1 interfaces(max. 10 x V5.1 per DLUV) . One DLUV consists of one module only. One frameF:DLUV(A) can contain up to 16 DLUV. This frame can be housed in LTGM or LTGNracks.


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R:DLU for 952subscriber lines

R:DLUB for 1760analog or 1536 ISDNsubscriber lines

R:DLUD for 1824analog or 1536 ISDNsubscriber lines

Fig. 3

DLU Shelter 400 for up to 432 subscriber lines

Fig. 4


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1.31.31.31.3 HardwareHardwareHardwareHardware

1.3.11.3.11.3.11.3.1 Overview: Structure of DLUBOverview: Structure of DLUBOverview: Structure of DLUBOverview: Structure of DLUB

In functional terms, the DLUB is subdivided as follows:

� Central functional unitsThe central functional units in the DLUB are duplicated and together form DLUsystems 0 and 1. A DLU system consists of:

control for DLU (DLUC)

digital interface unit for DLU (DIUD) or alternativelydigital interface unit for local DLU interface, module D (DIU:LDID)

group clock generator for DLUB (GCG)

bus distributor (BD)

� Signal distributionCommunication with the central and peripheral functional units of the DLUD is bymeans of the bus distributors BD using the duplicated bus systems 0/1. The DLUbus systems consist of:

4096-kbit/s buses (speech/data buses)The 4096-kbit/s buses 0/1 transmit speech/data information between the SLM andthe DIUD/LDI

Control busesThe control buses 0/1 carry control information, i.e. line signals and commandsfrom the DLUC to the SLM, line signals and messages in the other direction.

Collision detection busesThe duplicated collision detection bus is used for control purposes whenpacketized X.25 data is transmitted over the D channel of the ISDN basic access.

� Ringing and metering generators (optional, required only for special SLMA types)

The RGB generates the required sinusoidal ringing voltages and the synchronizingring pulse in the DLUB for analog subscriber line circuits with external ringingvoltage.

Metering generator (MGB) The MGB provides the meter pulses for analogsubscriber line circuits with external metering voltage generation.

� Peripheral functional units

subscriber line module, analog (SLMA), for connecting analog subscriberssubscriber line module, digital (SLMD), for connecting ISDN subscribersV5.1 interface (SLMX) for connecting non-system hardware (Access network (AN)

The external alarm set module (ALEX) forwards external alarms (e.g., powersupply failures) to the network node.


SN2012E5A0211

Stand-alone service control (SASC-E) controls during emergency service in theDLU call setup and release for analog and ISDN subscribers (single remote DLU orremote control unit (RCU) and enables DTMF dialing for push-button users.

� Test equipment

The test unit (TU) can be used to perform tests and measurements of lines andline circuit modules.

The metallic test access (MTA) allows external line testing systems to access theanalog lines connected to the DLUB.

toLTG

Control Bus 0/1

BD0/2belong tosystem 0

BD1/3belong tosystem 1

Fig. 5


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1.3.21.3.21.3.21.3.2 Overview: Structure of DLUDOverview: Structure of DLUDOverview: Structure of DLUDOverview: Structure of DLUD

� Central Functions (DLU system)The central functions in the DLUD are implemented on functional unit DLUS (DLUsystems). The functional unit DLUS is duplicated and contains the followingcomponents:

control for DLU (DLUC)digital interface unit for DLU (DIUD) or local DLU interface (LDI)group clock generator (GCG)bus distributor (BD)external alarm set (ALEX), only used in remote DLUD without extra ALEX module

� Signal distributionCommunication with the central and peripheral functional units of the DLUD is bymeans of the bus distributors BD using the duplicated bus systems 0/1. The DLUbus systems consist of:

4096-kbit/s buses (speech/data buses)The 4096-kbit/s buses 0/1 transmit speech/data information between the SLM andthe DIUD/LDI

Control busesThe control buses 0/1 carry control information, i.e. line signals and commandsfrom the DLUC to the SLM, line signals and messages in the other direction.

Collision detection busesThe duplicated collision detection bus is used for control purposes whenpacketized X.25 data is transmitted over the D channel of the ISDN basic access.

� Ringing and metering generators (optional, required only for special SLMA types)

The RGB generates the required sinusoidal ringing voltages and the synchronizingring pulse in the DLUB for analog subscriber line circuits with external ringingvoltage.

Metering generator (MGB) The MGB provides the meter pulses for analogsubscriber line circuits with external metering voltage generation.

� Test equipment

The test unit (TU) can be used to perform tests and measurements of lines andline circuit modules.

The metallic test access (MTA) allows external line testing systems to access theanalog lines connected to the DLUD.

� Transmission technology in the DLU (optional) If necessary, the DLUD can beequipped with transmission technology:

Optical Terminal Multiplexer for 16x2 Mbit/s (OMX16D)Line/network termination for optical fiber, 2x2 Mbit/s (LTOD)Line/network termination for copper cable, 2x2Mbit/s (LTCD)


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� Peripheral functions

subscriber line module, analog (SLMA), for connecting analog subscribers

subscriber line module, digital (SLMD), for connecting ISDN subscribers

V5.1 interface (SLMX) for connecting non-system hardware (Access network (AN))

Stand-alone service control (SASC-E) controls during emergency service in theDLU call setup and release for analog and ISDN subscribers (single remote DLU orremote control unit (RCU) and enables DTMF dialing for push-button users.

The external alarm set module (ALEX) forwards external alarms (e.g., powersupply failures) to the network node.

Control Bus 0/1

BD0/1in DLUS

BD2/3extra modulesin shelf2/3

Fig. 6


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1.3.31.3.31.3.31.3.3 Functions of the different DLUB / DLUD SubunitsFunctions of the different DLUB / DLUD SubunitsFunctions of the different DLUB / DLUD SubunitsFunctions of the different DLUB / DLUD Subunits

� Control for DLU (DLUC)The control for DLU (DLUC) controls internal DLU functional sequences anddistributes or concentrates signaling flows to and from the line circuits. To ensurereliability and to increase throughput, the DLU contains two DLUCs. They workindependently of each other in task-sharing mode, so that the second DLUC cantake control of all tasks if the first fails. The DLUC is the point of departure for theDLU-internal control bus to the shelves. All functional units that incorporate theirown microprocessor are accessed via this bus. The units are polled for messagesto be sent and accessed directly for the transfer of commands and data. TheDLUC also executes test and supervision routines and is thus able to detecterrors.

� Digital Interface UnitsDigital interface unit for DLU (DIUD) The DIUD has two interfaces for connectingtwo PCM30 (PCM24) highways or primary digital carriers (PDC). The PDCs link theDLU with LTGB, LTGF(B), LTGG(B), LTGM(B) or LTGN(B); PCM24 is not used withLTGM(B). Balanced-pair or coaxial cables can be connected.Digital interface unit for local DLU interface, module D (DIU:LDID) The DIU:LDIDhas one 4096-kbit/s interface for the connection of a locally deployed DLU toLTGF(B), LTGG(B), LTGM(B) or LTGN(B). Balanced-pair copper cable is used.When the DIU:LDID is employed, the contents of 60 speech/data channels andone CCS signaling link are carried over a single 4096-kbit/s highway (instead oftwo PCM30 highways).The DIUD reads the control information from channel 16 of a PDC and forwards itto the DLUC. In the opposite direction, control information from the DLUC isinserted in channel 16 of the same PDC and sent to the LTG.In the case of DIU:LDID, signaling is carried in channel 32. There is no need forconversion from 2048-kbit/s to 4096-kbit/s.In addition, the DIUD and DIU:LDID provide interfaces to the DLU-internal 4096-kbit/s bus for the shelves. This 4096-kbit/s bus is used to distribute speech/datainformation to the subscriber line modules (SLM) and to receive information fromthe SLMs.A signal for synchronizing the clock generator is derived from the PDC's line clock.To detect errors, the DIUD and DIUD:LDID execute test and supervision routines.When a remote DLU is operating in stand-alone mode (because all connections toboth LTGs have failed), the DIUD generates call progress tones (dial tone, ringingtone and busy tone). These tones are injected into the 4096-kbit/s bus via the PDCinterface. In stand-alone mode, the transmit and receive channels have a fixedsetting (loopback of the speech/data channels).Stand-alone service is not provided for locally deployed DLUs. In such cases, theDIU:LDID does not inject tones or loop back the channels.


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� Group Clock Generator for DLUB (GCG)The group clock generator (GCG) generates the 4096-kHz system clock and theassociated frame synchronization signal required for the DLU from theregenerated 2048-kHz line clock timing of PDC0 or PDC2 and the frame alignmentsignal (FAS). To ensure dependability, the group clock generator is duplicated. Thetwo GCGs operate according to the master/slave principle. Normally, the clockgenerator designated as master is active, while the slave generator is in standbymode. The master clock generator defines the timing signals for both DLUsystems. If the master clock generator fails, the system switches over to theslave generator, which then also defines the timing signals for both DLU systems.The clock generator can also be switched over by the operator (switch on thefront panel of GCG1).

Fig. 7


SN2012E5A0216

� Signal Distribution in the DLUThe bus distributor (BD) links the subscriber line modules (SLMs) with the centralfunctional units DLUC and DIUD or DIU:LDID in the DLU system. Each BD isassigned to one DLU system half as regards the control bus, 4096-kbit/s bus andcollision detection bus.Central and peripheral functional units communicate over a duplicated bussystem. Bus system 0 is used to transfer data in DLU system 0 with the aid ofbus distributors BD0 and BD2. Bus system 1 is used to transfer data in DLUsystem 1 with the aid of bus distributors BD1 and BD3. Each BD serves 32 SLMs.

Control busesThe control buses carry control information, i.e. customer line signaling andcommands from the DLUC to the SLM, customer line signals and messages inthe other direction. The control buses operate at a bit rate of 187.5 kbit/s in bothdirections, with an effective data rate of about 136 kbit/s.Control buses 0 and 1originate at DLUC0 and DLUC1 respectively. A DLUC has four interfaces (one foreach possible shelf) at which the control lines to the BDs in the shelves originate.After the BDs, the control bus fans out in groups to the mounting locations forthose functional units that contain microprocessors. Both control buses, 0 and 1,extend to every mounting location in the shelves, enabling the second bus toserve all mounting locations if the first should fail. In the BDs, the signals areregenerated and either fanned out again to other outputs to the periphery or, inthe case of signals originating at the periphery, concentrated onto fewer lines.

4096-kbit/s busesThe 4096-kbit/s buses carry speech/data information to and from the SLMs. Eachbus has 64 channels in each direction. Each channel operates at a bit rate of 64kbit/s (64 x 64 kbit/s = 4096 kbit/s). There is a fixed assignment between thechannels of the 4096-kbit/s buses and the channels of the PDC, determinedthrough the DIUD or DIU:LDID. The 4096-kbit/s buses 0 and 1 originate at DIUD0and DIUD1 (DIU:LDID0/1) respectively. A DIUD has four interfaces (one for eachpossible shelf) at which the lines to the BDs in the shelves originate. In the shelf,the information flowing over each of the two bus systems 0/1 is delivered to allmounting locations for SLMs via the BDs. This means that every SLM can bereached by either of the two DLU systems. The signals traveling over the busesare synchronized with the clock.

Collision detection busesThe collision detection bus is duplicated and runs parallel to the 4096-kbit/s bus. Itis only relevant for SLMDs or SLMXs, preventing simultaneous accesses to theBd-channel. A time slot is fixed on the 4096-kbit/s bus for the Bd-channel.


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DLUC1

DLUC0

Control bus 1

Control bus 0

Fig. 8


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� Analog Subscriber Line Modules (SLMA)

SLMA:FPEThe subscriber line module SLMA:FPE for the DLUB and DLUD contains 16analog subscriber line circuits and one common control unit with the processor(SLMCP). The SLMA:FPE does not require an RGB or MGB; these functions areimplemented on the modules themselves (exception: the SLMA:FPE with externalringing does require an RGB for injection of unbalanced ringing).The SLMA:FPE replaces the previous SLMAs for ordinary subscribers e.g.subscriber line modules:

for ordinary subscribers (SLMA:COS) with eight subscriber line circuits

with silent reversal for coinbox telephones (SLMA:CSR) with four subscriber linecircuits

with 12-kHz/16-kHz meter pulse injection (SLMA:CMRL), hard reversal and loopopen with six subscriber line circuits

SLMA with special functions:

for direct inward dialing (SLMA:DID) with eight subscriber line circuits (loopsignaling)

for two party lines (SLMA:TPL) with four subscriber line circuits for connectingeight subscribers via front-end relay (secrecy box)

for emergency telephone (SLMA:FPS) with four subscriber line circuits

for direct inward/outward dialing (SLMA:DIOD) with four subscriber line circuits(pulse signaling)

� Ringing Generator (RGB)For analog subscriber line modules (SLMAs) that require external ringing orsynchronization pulses, up to two ringing generators (RGBs) are used. The SLMAsare accessed directly by the RGB in a star configuration. No RGB is necessary forsubscriber line modules with internal ringing (e.g. SLMA:FPE) generation.(Exception: The SLMA:PFE with external ringing does require an RGB.)The RGBs also supply ringing voltage to the test unit (TU) in shelf 0, if installed.

� Metering Generator (MGB)The metering generator (MGB) consists of a direct current converter connected inseries with a sine-wave generator and provides metering pulses for analogsubscriber line modules (SLMAs) with external metering systems (e.g.SLMA:TPL). The SLMA:FPE does not require an MGB.The MGB provides the metering pulses for the SLMAs in shelf 1 (max. 15 SLMAs)only.


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Battery Supply

Overvoltage Protection

Ringing

Signaling

Coding

Hybrid 2/4-Wire

Testing

Analog subscriber line SLMA:FPE

SLCA

Control part SLMCP

0

15

Test busControl bus 0 (DLUC0)

Control bus 1 (DLUC1)

4096-kbit/s-bus 0(DIUD0 orDIU:LDID0)

4096-kbit/s-bus 1(DIUD1 orDIU:LDID1)

to the TU

Fig. 9


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� Extension module, V5.1 interface (SLMX)

The extension module, V5.1 interface (SLMX) is used to connect non-systemhardware (Access network (AN)) to the DLU. The SLMX services two V5.1interfaces (V51F). These interfaces correspond electrical to the PCM interface ofthe DIU (2048 kbit/s as per ETSI).

The following subscriber configurations are possible for each V5.1 interface:

ISDN subscriber/PBX = 1B channel = max. 30 subscribers

ISDN subscriber/PBX = 2 B channels = max. 15 subscribers

PSTN = 1B channel = max. 30 subscribers

Of the 32 timeslots on the V5 link, a maximum of 30 are used as user channels.Timeslot 0 is used for frame synchronization, and the control protocol and, ifnothing else is defined, the signaling run in timeslot 16. For V51F on the DLU,channels 15 and 31 can be used in addition to channel 16 as signaling channels oras a channel for packet data. These channels (16, 15 and 31) are designated asCommunication Channels (C channels). This can reduce the number of userchannels to 28.

From the system side (DLU) the SLMX obtains the normal DLU interfaces to thetwo 4096-kbit/s buses and collision detection buses of DLU side 0 and 1 and tocontrol buses 0 and 1.

A switching matrix chip allocates the timeslots of the V5.1 interfaces to the4096 kbit/s buses.

The HDLC controller provides up to three Communication Channels per V5.1interface between the SLMX and AN.

The micro controller (QUICC) controls all the functions on the SLMX.


SN2012E5A0221

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fig. 10


SN2012E5A0222

� Digital Subscriber Line Module SLMDA SLMD contains 8 or 16 digital subscriber line circuits SLCD. Each SLCDprovides a two wire interface for ISDN basic access BA. It can be used to connectan ISDN subscriber or an ISDN PBX line (used for small PBX).The SLMD contains beside the SLCD a control section to handle the interface tothe DLU control, collision and 4096kb/s bus systems.There are different SLMD types existing for serving the 2 different codingstandards on a BA.

Main Functions of the SLMDOvervoltage protectionProvisioning of the time multiplex interface with the 2B and D channel with a totalof 144kbit/s and the 16kbit/s for the clock synchronization (layer 1 of the DSS1)Echo compensation for the bidirectional digital transmission on the 2-wiresubscriber line (layer 1 of the DSS1)

2-wire /4-wire conversion and adaption of the line code used on the subscriberline (layer 1 of the DSS1)

Separation of the DSS1 signaling messages from the X.25 data packets ofthe subscriber (layer 2 of the DSS1)Protection of the transfer of the DSS1 signaling messages in the D channel(layer 2 of the DSS1)Test access to the subscriber line /circuit

Fig. 11


SN2012E5A0223

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fig. 12


SN2012E5A0224

� Test Equipment

Test Unit (TU)The test unit (TU) is used to carry out tests and measurements on subscriberlines(comprising the line termination, the subscriber line and the subscriber linecircuit).The test unit TU consists of two modules:function test module of test unit (FMTU) linecircuit measuring module (LCMM)Tests must be initiated by the operator using the operation and maintenanceterminal(OMT/BCT). The following can be tested:analog line circuitsanalog lines and terminalsfeed to digital subscribersdigital linesThe TU can measure voltage, current, resistance and capacitance; timing can alsobe evaluated in the case of voltage and current measurement.

Metallic Test Access (MTA)The metallic test access (MTA) allows external line testing systems to access theanalog subscriber lines connected to a DLU.There are two MTA variants:test access and signaling via a common interface (MTA A)separate measuring and control interfaces (MTA B)

� Power supply in the DLUThe power supply in the DLU is decentralized. Various types of current convertersDCC are used to feed the subscriber line modules.

The SLMX does not require a DCC as it is powered directly with –48V/-60V.

The direct current converters generate the dc voltages required by the SLMs fromthe exchange voltage –48 V/–60 V. The current converters DCC.. have thefollowing voltage values:

DCCCR –48 V/–60 V to +12 V, –12 V, +5 V, –5 V

DCCDC –48 V/–60 V to +12 V, –12 V, +5 V, –5 V, +51 V/+53 V, –67 V

DCCDD –48 V/–60 V to +12 V, –12 V, +5 V, –5 V, –97 V

DCCDF, DCCDM –48 V/–60 V to +5 V, –5 V, –68 V, +52 V

DCCDP –48 V/–60 V to +5 V, –68 V

DCCDK, DCCDN –48 V/–60 V to +5 V, –97 V

DCCDQ –48 V/–60 V to +5 V, –5 V, +12 V, –12 V, –68 V, +52 V


SN2012E5A0225

Power Supply DLUB

Fig. 13

Power Supply DLUD

Fig. 14


SN2012E5A0226

1.3.41.3.41.3.41.3.4 Functional Units for Remote Operation of DLUB andFunctional Units for Remote Operation of DLUB andFunctional Units for Remote Operation of DLUB andFunctional Units for Remote Operation of DLUB andDLUDDLUDDLUDDLUD

� Emergency operation for remote DLUs and RCUsA DLU operates in emergency service if it cannot communicate with at least oneLTG via a PDC with common channel signaling (CCS), e.g. in the event of totalfailure of the links to the LTGs. The stand-alone service control module (SASC-E)handles signaling and speech paths from DLU to DLU (maximum of six DLUs in aremote control unit (RCU)) or users within a remote DLU. During emergencyservice for a remote DLU the SASC-E allows connected subscribers to set upconnections to and from each other (internal DLU traffic). In emergency service forpushbutton subscribers in the DLU the SASC-E activates the tone receivers tofacilitate DTMF dialing. Emergency operation does not entail any major limitationsfor the subscriber on the DLU.The stand-alone service control SASC-E replaces the former emergency control(SASC) and the emergency service equipment for pushbutton subscribers (EMSP).Depending on the application program system (APS), the former SASC and EMSPmodules can continue to be used.

For stand-alone service of the DLU within an RCU a distinction is made between:

Failure of the links between RCU and network nodeIn the event of failure of the links between RCU and network node, the SASC-Esof the DLUs control call setup in the RCU and also internally in each associatedDLU. During emergency service, all subscribers connected to the RCU cancommunicate with each other.

Failure of the links from one or more DLUs in an RCU to the network nodeIn the event of failure of both PDCs (with CCS) of one or more DLUs in an RCU tothe network node, the subscribers connected to the affected DLUs cancommunicate with each other in emergency service; the subscribers connected tothe other DLUs in the RCU continue to have normal service.

An Stand-alone service control SASC-E contains:

an interface for up to five interconnecting links to other DLUs in an RCU

a channel assignment unit

an interface to 4096-kbit/s networks 0 and 1 and to control networks 0 and 1

a control section with CNP and ASCP

a code receiver processor (CRP) for pushbutton subscribers of DLU)


SN2012E5A0227

The main functions of the SASC-E in emergency service are:

controlling call setup and release for subscribers within one DLU

controlling call setup and release for subscribers in other DLUs of an RCU

ending stand-alone service when the connection between one DLUC and thenetwork node has been reestablished

checking the database, updating it where necessary (after transition to normalmode)

performing internal hardware routine tests and some supervisory functions (thesame supervisory functions performed in normal mode)

controlling the code receivers.

Remote control unit (RCU)

Analog and ISDN sub-scriber lines

Links between the DLUs of an RCU

DLU1

DLU6

DLU2

DLU4DLU3

DLU5

LTG

LTG

PDC0

PDC1

PDC2

PDC3

PDC0

PDC1

PDC2

PDC3

with CCSwithout CCS

Fig. 15


SN2012E5A0228

� Alarm HandlingThe external alarm set (ALEX) is used to forward external alarms (e.g. powerfailure) to the network node. Since, in the case of a remote DLU, it is not possibleto connect system-external alarms to the system panel control (SYPC), theexternal alarm set module (ALEX) is used.

The functions of the ALEX are to:

identify, store and evaluate the state of up to 16 alarm contacts

exchange data with DLUC0 and DLUC1

test its own firmware and end communication with the DLUC if a firmware error is

detected

test its own hardware and report the detection of hardware faults

� Transmission technology in the DLUDThe DLUD can be equipped with separate transmission devices. The optical orelectrical link can be used to connect the remote DLU to the network node or tocreate a transmission network with further remote units. For a transmissioncapacity of 2 Mbit/s to 34 Mbit/s, the following functional units can be used in theDLUD:

Optical Terminal Multiplexer for 16x2 Mbit/s (OMX16D)The OMX16D is a multiplexer which concentrates 16x2 Mbit/s signals to 34Mbit/s. For transmission on optical fiber (OF), the 34 Mbit/s signals are convertedinto an LWL line code (36 Mbit/s). The monomode optical fibers permit bi-directional data transmission with little loss and operate reliably up to a link lengthof approximately 30 km.

Line/network terminal for optical fiber (LTOD)The LTOD facilitates 2x2 Mbit/s line access to optical fibers. The LTOD operateson the basis of the wave length multiplex method and uses one line for bothtransmission directions. A distance of approximately 30 km can be reached withthe LTOD.

Line/network terminal for copper cable (LTCD)The LTCD facilitates 2x2 Mbit/s line access to copper cable. The LTCD for coppercable uses a line code of 2B1Q in accordance with HDSL (High-bit rate digitalsubscriber line). For bi-directional 2 Mbit/s transmission (in accordance withETSI),2-pair copper cable is required. A distance of approximately 2.5 up to 12 km(depending on the line diameter of 0.4 up to 1.4 mm) can be reached with theLTCD.

The interface for transmission devices to the DIU component on the DLUS isbalanced in accordance with CCITT recommendation G.703. The transmissiondevices LTOD, LTCD, OMX16D obtain the required direct current (+5V) via thecurrent converters (DCC).


SN2012E5A0229

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fig. 16


SN2012E5A0230

1.3.51.3.51.3.51.3.5 Frame Layouts for DLUBFrame Layouts for DLUBFrame Layouts for DLUBFrame Layouts for DLUB

The functional units of the DLUB are implemented by means of a number ofmodules. These modules are accommodated in shelves. Each shelf is subdividedinto a left and a right half shelf (seen facing the module side of the module frame).

� Basic frame F:DLU(D)In the basic frame, the following modules are provided as basic equipment:

two DLU controls DLUC0/1

two digital interface units DIUD 0/1 or DIU:LDID0/1

two bus distributors BD0/1

one test unit TU comprising FMTU and LCMM

The TU is also used if only SLMDs are installed. If only SLMXs are installed, theTU is not needed. In the basic equipment, two current converters, type DCCDC,are provided in shelf 0 (one DCCCR may also be sufficient if no SLMAs or TU areinstalled in this half shelf).

� Extension frame F:DLU(E), F:DLU(F) (extension frame with one shelf only, usede.g. for smaller racks in container exchanges)In the extension frame, two bus distributors BD2/3 are provided in each case asbasic equipment. In the extension frame F:DLU(F), both bus distributors (BD2/3)are installed in the right half shelf.

� The DLUB may also contain different equipment depending on whether it isintended for local or remote use. For remote use, additional modules can beinstalled (SASC-E, ALEX). These modules are installed in place of SLMs (seefigures for module frames). The maximum number of subscriber lines that can beconnected to a DLUB is reduced when special modules are used e.g. SASC-E,ALEX.

TIPNote on mixed equipment configuration:

2 DDCDF or DCCDK per half shelf:A quarter shelf must always be equipped uniformly with SLMA:FPEs orSLMD:TFBs/SLMD:QFBs (different power supply required, DCCDF or DCCDK).Quarter shelves can be combined.

1 DCCDM or DCCDN per half shelfA half shelf must always be equipped uniformly with SLMA:FPEs orSLMD:TFBs/SLMD:QFBs (different power supply required, DCCDM or DCCDN).The DCCDP is used to supply the SLMA:FPE (SLMA:FPE with external ringing).SLMAs with up to 8 SLCAs, SLMDA/SLMDBs or SLMXs must always beequipped uniformly per half shelf.


SN2012E5A0231

Basic FrameF:DLU(D)

Extension FrameF:DLU(E)

Fig. 17


SN2012E5A0232

1.3.61.3.61.3.61.3.6 Frame Layouts for DLUDFrame Layouts for DLUDFrame Layouts for DLUDFrame Layouts for DLUD

The functional units of the DLUD are implemented by means of a number ofmodules. These modules are accommodated in shelves. Each shelf is subdividedinto a left and a right half shelf (seen facing the module side of the module frame).

� Basic frame F:DLU(G)In the basic frame, the following modules are provided as basic equipment:

two DLU controls DLUS0 and DLUS1

possible test unit (TU) consisting of FMTU and LCMM

The TU is also used if only SLMDs are installed. If only SLMXs are installed, theTU is not needed.In the basic equipment, two current converters, type DCCDC, are provided inshelf0 (one DCCCR may also be sufficient if no SLMAs or TU are installed in thishalf shelf). For extended application (max. SLM equipping in Shelf 0), a DCCDQ isplugged in to provide the necessary performance.

� Extension frame F:DLU(E), F:DLU(F)

In the extension frame, two bus distributors BD2/3 are provided in each case asbasic equipment. In the extension frame F:DLU(F), both bus distributors (BD2/3)are installed in the right half shelf.

� The F:DLU(G) can be equipped differently depending on whether it is in a local orremote DLU. For the remote DLU additional modules are necessary: SASC-E,possibly ALEX (in shelter DLU: alarm indication via the ALEX function on theDLUS). The modules are used instead of an SLM. The SASC-E occupies a slot forSLMs. The maximum number of subscriber lines which can be connected to aDLUD decreases when special modules are used e.g. SASC-E or special SLMA(with up to 8 ports)

� The line termination device LTOD or LTCD occupy a slot for SLMs. The terminalmultiplexers OMX16D are plugged into the SLM intermediate position.

� The DLUV is used to connect ten V5.1 interfaces to the AN. Up to four DLUVs canbe plugged into the SLM intermediate position in the F:DLU(G); only the -48 or -60V power supply is used here. The DLUV is a separate DLU and has no logicalconnection to the DLUD.


SN2012E5A0233

TIPNote on mixed equipment configuration:

2 DDCDF or DCCDK per half shelf:A quarter shelf must always be equipped uniformly with SLMA:FPEs orSLMD:TFBs/SLMD:QFBs (different power supply required, DCCDF or DCCDK).Quarter shelves can be combined.

1 DCCDM , DCCDN or DCCDQ per half shelfA half shelf must always be equipped uniformly with SLMA:FPEs orSLMD:TFBs/SLMD:QFBs (different power supply required, DCCDM or DCCDN).The DCCDP is used to supply the SLMA:FPE (SLMA:FPE with external ringing).SLMAs with up to 8 SLCAs, SLMDA/SLMDBs or SLMXs must always beequipped uniformly per half shelf.

Basic FrameF:DLU(G)

Extension FrameF:DLU(E)

Fig. 18


SN2012E5A0234


SN2012E5A0235

2222 MML CommandsMML CommandsMML CommandsMML Commands


SN2012E5A0236

2.12.12.12.1 Creation of DLUCreation of DLUCreation of DLUCreation of DLUThe DLU is created by the command CR DLU.

The parameter SHELF contains the identification of the type DLU.

DLUB : SHELF= B

DLUD : SHELF = D

CR DLU: DLU = 10, 20, ..., 2550SHELF = D[DLUC0 = <TS> - <LTG> - <LTU1> - <LTU2>][DLUC1 = <TS> - <LTG> - <LTU1> - <LTU2>]

By the parameter DLUC0 and DLUC1 you assign up to 2 PDC per DLUC leading toLTU positions in the LTG.

With help of the command CR DLU there is automatically created the followingmodules in the DLUD

DLUB: DLUC/DIUD

DLUD: DLUS

MOD = 0-5/0-6 and 0-10/0-9

MOD = 0-7 and 0-8 in shelf 0

RGB in shelf 0

GCG MOD=0-7 and 0-8 in shelf 0

and all BD-modules and DCC modules

With help of the command EXT_DLU / RED_DLU the amount of PDC links can bemodified.


SN2012E5A0237

LTU

3210

LTGxPDC 0 with CCSDLU

LTU

3210

LTGy

PDC 1 without CCS

PDC 2 with CCSPDC 3 without CCS

Fig. 19 Connection of DLU

843210

15141312117DLUS0

6543210 DCC

DCC

DCC

RGB0

1098DLUS1

:created cards in

Shelf 2-3

Shelf 1

Shelf 0

CR DLU

1514131211765 DCC

DCC

DCC

109

843210 DCC

BD

1514131211765 DCC

DCC

DCC

109

Example: DLUD cards created with CR DLU

CR DLU: DLU = 10, 20, ..., 2550SHELF = D[DLUC0 = <TS> - <LTG> - <LTU1> - <LTU2>][DLUC1 = <TS> - <LTG> - <LTU1> - <LTU2>]

Fig. 20 Modules created by CR DLU


SN2012E5A0238

2.22.22.22.2 Creation of DLU ModulesCreation of DLU ModulesCreation of DLU ModulesCreation of DLU ModulesA card at a DLU module position is created by the command

CR DLUMOD: DLU = 10, 20, ..., 2550

MOD = a-b

a: shelf number 0...3b: module number 0...15

TYPE = SLMAFPE, SLMDQFB, SASC, FMTU, LCMM, ...

[PACC = y/n]

[SLMXID= 0...15]

[REMOTE= y/n]

The parameter PACC gives the authorization for packed access, SLMXID defines theSLMX identifier (see V5.1 interface), REMOTE specifies, if the DLU module is aremote module or not (only OFDC; not discussed in this course).


SN2012E5A0239

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8 151413121176543210 DCC

DCC

RGB

109

CR DLUMOD:created cards in

Shelf 2-3

Shelf 1

Shelf 0

BD

151413121176543210 DCC

DCC

DCC

DCC

1098

BD

151413121176543210 DCC

DCC

DCC

DCC

1098

CR DLUMOD: DLU = 10, 20, ..., 2550

MOD = a-b

a: shelf number 0...3b: module number 0...15

TYPE = SLMAFPE, SLMDQFB, SASC, FMTU, LCMM, ...

[PACC = y/n]

[SLMXID= 0...15]

[REMOTE= y/n]

Example: DLUMOD positions in DLUD

Fig. 21


SN2012E5A0240

Interpretation of SUL:DLU

1. Name of the controlling exchange

2. Document serial number for configuration documents of the controllingexchange

3. Number of the digital line unit (DLU) Position 1-4 DLU

4. Sequence number

5. Subscriber line circuit type e.g. SLACOS, SLCACM16

6. Number of existing subscriber line circuits

7. Increase/reduction in number of subscriber line circuits due to expansion(difference form previous installation stage)

8. Number of shelves belonging to one DLUPosition 1 from shelf numberPosition 2 hyphen (-)Position 3 to shelf number

9. Number of the DIU in the F:DLU(A) with LTG connectionPosition 1 shelf of DIUDPosition 2 primary digital carrier of the DIU D

10. Number of the line/trunk group (LTG) to which the DLU is connectedPosition 1 TSG areaPosition 2 2-3 LTG number within a TSG area

11. Number of the LTU with which the DLU-DIU is connected in the LTG

12. LTU typewith PCM30, e.g.:EXT for DIU without CCS linkCCS for DIU with CCS link

13. Number of modules for code receivers in the LTG for the subscribers with push-button telephones connected to the DLU1...8 with push-button dialingno entry or 0 without push-button dialing

14. Supplementary information


SN2012E5A0241

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0010 1234

SLCACOS 432 0-3 00100111

001002001002

0022

CCSCCSEXTEXT

44

DLU CONTROLLING EXCH: 1)SERI.NO: 2)

LTU-TYPE

DLU S SUB-TYP EXIST EXT SHELF DIU LTG NO APPL. SHELF REMARKS

3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14)

Fig. 22 SUL:DLU


SN2012E5A0242

2.32.32.32.3 Creation of RCUCreation of RCUCreation of RCUCreation of RCUThe SASC has to be created as a DLU module

CR DLUMOD: DLU =... , MOD =... , TYPE = SASC;

Afterwards you have to define, which DLUD belong to the RCU

CR RCU: RCU = <rcu>,

RCUMBR = <dlu> - <mbr> & ...& <dlu> - <mbr>;

Modification, i.e. extension or reduction of the emergency cluster can be done by

EXT RCU: RCU = <rcu>,


RED RCU: RCU = <rcu>,


the cancellation of the whole cluster by

CAN RCU: RCU = <rcu>;


SN2012E5A0243

RemoteLineUnit

SASC

RemoteLineUnit

SASC

RemoteLineUnit

SASC

RemoteLineUnit

SASC

RemoteLineUnit

SASC

RemoteLineUnit

SASC

Parent exchange

RCUCluster DLU

CR DLUMOD: DLU =... , MOD =... , TYPE = SASC;

CR RCU: RCU = <rcu>,


Fig. 23 Basic structure and creation of a RCU


SN2012E5A0244

2.42.42.42.4 Configuration, Test and Diagnosis for DLUConfiguration, Test and Diagnosis for DLUConfiguration, Test and Diagnosis for DLUConfiguration, Test and Diagnosis for DLU

2.4.12.4.12.4.12.4.1 General Meaning of Operational State OSTGeneral Meaning of Operational State OSTGeneral Meaning of Operational State OSTGeneral Meaning of Operational State OST

ACT(active)

Sub-unit is in operation

STB(standby)

Sub-unit is ready for operation if the according duplicatedsub-unit gets faulty

CBL(conditionally blocked)

sub-unit is prepared by the operator for being blocked formaintenance - no further call set ups are accepted viathe sub-unit

MBL(maintenance blocked)

Sub-unit is blocked by the operator, diagnostic can nowbe started

NAC(not accessible)

sub-unit cannot be used because higher ranking unit isnot in operation

UNA or DST(unavailable) (disturbed)

Sub-unit is faulty and therefore out of service, nodiagnostic is possible, after fault clearance either thesub-unit is reactivated automatically (DST) or has to bereactivated by the operator (UNA)

PLA(planed)

Sub-unit is created in the database, but no higher rankingunit tries to use this sub-unit - no diagnostic is possible

TIPThe current OST of any sub-unit may be displayed by using a STAT-CMD.


SN2012E5A0245

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

UNA

MBL

STB

ACT

CBLPLA

Fig. 24 OST Transitions by CONFiguration CMD

STB

ACT

UNANACDST

Fig. 25 OST Transitions by Safeguarding SW


SN2012E5A0246

2.4.22.4.22.4.22.4.2 DLU States in Printouts of STAT CommandDLU States in Printouts of STAT CommandDLU States in Printouts of STAT CommandDLU States in Printouts of STAT Command

In STAT-CMD printouts for DLU there is made a difference between thesemipermanent and the transient state:

� Semipermanent State: OST

„should be“ state, only changed by CONF-CMD

this state is not altered by the safeguarding SW

� Transient State: ACCESS DEGARDING

real current state supervised and altered by the safeguarding SW

the access degrading informs you, if a DLU sub-unit with OST=ACT is workingproperly

OST ACCESS DEGRADING meaning for the DLU sub-unit

ACT NON working free of fault

ACT DST out of service because faulty, automaticreactivation after faulty module ischanged

ACT NAC out of use because higher ranking unit isnot in service

CONF and STAT-CMD for DLUD

DLU SYStem: CONF/STAT DLU

DLU EQuipment: CONF/STAT DLUEQ

DLU MODule: CONF/STAT DLUMOD

&

CONF/STAT DLUPORT


SN2012E5A0247

SLM

or

SASC

1

SLM

or

TBAM

14

EMSP

or

LTAM

13

SLM

or

MTAM

12

SLM

or

SASC

2

SLM

or

EMSP

0

DCCDCorDCCCR

0-2

DLUS1

8

DLUS0

7

DCCDC

0-0

RGB0

SLM

or

ALEX

11

SLM

or

EMSP

15

SLM

10

SLM

9

BD3

BD2

SLM

or

FMTU

4

SLM

or

LCMM

3

SLM

6

SLM

5

SLM

1

SLM

13

SLM

12

SLM

2

SLM

0

DCCDF

1-2

DCCDF

1-3

DCCDF

1-1

DCCDF

1-0

SLM

4

SLM

3

SLM

or

MGB

7

SLM

6

SLM

5

DLU EQ

DLU SYS

DLU MOD

F:DLU(G)

121115103 109097091085079073067061055049043037031025019013007001

SLM

1

SLM

2

SLM

0

DCCDF

2-2

DCCDF

2-3

DCCDF

2-0

SLM

4

SLM

3

SLM

7

SLM

6

SLM

5

SLM

1

SLM

2

SLM

0

DCCDF

3-0

SLM

4

SLM

3

SLM

7

SLM

6

SLM

5

Shelf

3

Shelf

2

Shelf

1

Shelf

0

Mountinglocation

(MOLOC)

F:DLU(E)

SLM

9

SLM

8

SLM

11

SLM

10

SLM

13

SLM

12

SLM

15

SLM

14

SLM

9

SLM

8

SLM

11

SLM

10

SLM

13

SLM

12

SLM

15

SLM

14

SLM

9

SLM

10

SLM

8

SLM

14

SLM

11

SLM

15

DCCDF

2-1

DCCDF

3-1

DCCDF

3-2

DCCDF

3-3

Fig. 26 CONF and STAT command for DLUD


SN2012E5A0248

2.4.32.4.32.4.32.4.3 Examples for Printouts of STAT CommandExamples for Printouts of STAT CommandExamples for Printouts of STAT CommandExamples for Printouts of STAT Command

� STATDLU:DLU= [,OST=];

Example printout:STATDLU: DLU=10; EXEC’D

DLU SIDE - 0 SIDE - 1ACCESS- ACCESS-

DLUC-OST DEGRADING LTG PER-OST DLUC-OST DEGRADING LTG PER-OST------------------------------------------------------------------------10 ACT NON 0-10 ACT ACT NON 0-11 ACT

� STATDLUEQ:DLU= ,DCC=[,OST=];

Example printout:STATDLUEQ: DLU=10, DCC=0-0&&3-3; EXEC’D

DLU DCC OST ACCESS DEGRADINGSIDE0 SIDE1

------------------------------------------------------------------------10 0-0 ACT NON NON10 0-2 ACT NON NON10 1-0 ACT NON NON10 1-1 ACT NON NON10 1-2 ACT NON NON10 1-3 ACT NON NON10 2-0 ACT NON NON10 2-1 ACT NON NON10 2-2 ACT NON NON10 2-3 ACT NON NON10 3-0 ACT NON NON10 3-1 ACT NON NON10 3-2 ACT NON NON10 3-3 ACT NON NON

Fig. 27

0-0, 0-2, (in Shelf 0)1-0, 1-1, 1-2, 1-3 (in Shelf 1)

2-0, 2-1, 2-2, 2-3 (in Shelf 2)3-0, 3-1, 3-2, 3-3 (in Shelf 3)

The physically non-existent DCC 0-1 and 0-3 cannot be (logically) configured andtherefore do not appear in the status display. The physically non-existent DCClocated in the extension shelves must be configured and therefore appear in thestatus display.

Before it is possible to configure the first module in the appropriate half-shelf orquarter-shelf, the corresponding DCC must be configured from PLA to ACT via MBL.Reconfiguration from ACT to MBL of the DCC will not be possible before all modulesin the half-shelf or quarter-shelf are in the PLA state.


SN2012E5A0249

� STATDLUEQ:DLU= ,RGB=[,OST=];

Example printout:

STATDLUEQ: DLU=10, RGB=X; EXEC’DDLU RGB/ OST ACCESS DEGRADING

RGMG SIDE0 SIDE1------------------------------------------------------------------------10 0 ACT NON NON10 1 ACT NON NON

� STATDLUMOD:DLU= ,MOD=[,OST=];

Example printout:

STATDLUEQ: DLU=10, MOD=X-X; EXEC’DDLU MOD TYPE OST ACCESS-DEGRADING PACC

SIDE0 SIDE1 SIDE0 SIDE1----------------------------------------------------------------------10 0- 0 TO 0- 2 SLMAFPE ACT NON NON NO NO10 0- 3 FMTU ACT NON NON NO NO10 0- 4 LCMM ACT NON NON NO NO10 0- 7 BDCG/GCG ACT NON NON NO NO10 0- 8 BDCG/GCG ACT NON NON NO NO10 0-11 TO 0-12 SLMAFPE ACT NON NON NO NO10 0-13 EMSP ACT NON NON NO NO10 0-14 SLMAFPE ACT NON NON NO NO

� STATDLUPORT:DLU= ,LC=[,OST=];

Example printout:

STATDLUPORT: DLU=10, LC=0-14-0&&0-14-15; EXEC’DDLU LC MOD-TYPE OST ACCESS-DEGRADING

SIDE0 SIDE1------------------------------------------------------------------------10 0-14-0 TO 0-14-15 SLMAFPE ACT NON NON

Fig. 28


SN2012E5A0250

2.4.42.4.42.4.42.4.4 Remarks for CONF CommandRemarks for CONF CommandRemarks for CONF CommandRemarks for CONF Command

Configuration of the DLU System

An active DLU system may be configured to MBL for maintenance only by way ofCBL. As long as the DLU is CBL, no new calls are accepted, but existing calls areretained. If the state of the DLU system is DST or the LTG has an operating stateother than ACT/CBL, the system can be configured directly to MBL. In these casesno STARTED message is issued and no warning is given. There is no such warningon configuration to ACT either.

Example:

Configure DLU system 0 from ACT to CBL and then to MBL (LTG=ACT/CBL).

Input:

CONF DLU: DLU=dlu, DLUC0=Y, OST=CBL;

Display on screen: STARTED

After configuration to CBL wait approx. 6 minutes, so that calls that are currently inprogress can be terminated. In 6 minutes approximately 90 % of the existing callswill be cleared down. Then configure to MBL. However, if the response EXEC’D isissued before the 6 minutes have expired, all calls are cleared down andconfiguration to MBL can take place immediately.

Enter the following MML command:

CONF DLU: DLU=dlu, DLUC0=Y, OST=MBL;

If an attempt was made to configure the system to MBL before the EXEC’Dmessage for the configuration to CBL had appeared.

CAUTION: THIS SWITCHOVER-REQUEST RESULTIN LOST CALLS!DO YOU WANT IT TO BE EXECUTED? (YES: +/NO: -)<

Warning on configuring to MBL

Enter plus sign for YES:

+

Output on screen EXEC’D


SN2012E5A0251

CONF DLU: DLU=dlu, DLUC0=Y, OST=CBL;

Display on screen: STARTED

After configuration to CBL wait approx. 6 minutes

CONF DLU: DLU=dlu, DLUC0=Y, OST=MBL;

If an attempt was made to configure the system to MBL before the EXEC’D messagefor the configuration to CBL had appeared.CAUTION: THIS SWITCHOVER-REQUEST RESULTIN LOST CALLS!DO YOU WANT IT TO BE EXECUTED? (YES: +/NO: -)<

Enter plus sign for YES:

+

Output on screen EXEC’D

Fig. 29


SN2012E5A0252

Configuring the DLU Equipment

The DLU equipment comprises the direct current converter modules DCC and theringing generator modules RGB. In the operating state MBL the RGB still permitsringing, but it is no longer supervised by the routine test.

Enter one of the following MML commands:

for RGB:

CONF DLUEQ: DLU=dlu,RGB=rgb,OST=ost;

for DCC:

The DCC is only configured at the time of installation.

This configuration command is not required for maintenance.

CONF DLUEQ: DLU=dlu,DCC=dcc,OST=ost;


SN2012E5A0253

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

for RGB:

CONF DLUEQ: DLU=dlu,RGB=rgb,OST=ost;

for DCC:

CONF DLUEQ: DLU=dlu,DCC=dcc,OST=ost;

Fig. 30


SN2012E5A0254

Configuration the DLU Modules

Configuring a module is different form configuring a module range. A module rangeconsists of at least 2 module addresses.

Example:

Enter MML command in order to configure from ACT to CBL and then to MBL:

CONF DLUMOD: DLU=dlu,MOD=shf-mod,OST=CBL;

Output on screen: STARTED


CONF DLUMOD: DLU=dlu,MOD=shf-mod&shf-mod,OST=MBL;

This result in the following output:


Warning on configuring DLU modules to MBL

Enter plus sign for YES:+Output on screen EXEC’D

If a module or a module range has the state ACCESS DEGRADATION=DST for bothsides, it is possible to configure directly to MBL. No warning is issued with thisconfiguration.

Modules are not used for switching operations (e.g. ALEX, TU or MTA modules), canbe configured directly form ACT to MBL.

For most of the DLU modules it is also necessary to configure the ports:

CONF DLUPORT: DLU=dlu, LC=shf-mod-port, OST=ost;

It is possible to configure with one command a range of ports.


SN2012E5A0255

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CONF DLUMOD: DLU=dlu,MOD=shf-mod,OST=CBL;

Output on screen: STARTED


CONF DLUMOD: DLU=dlu,MOD=shf-mod&shf-mod,OST=MBL;

This result in the following output:


Enter plus sign for YES:+Output on screen EXEC’D

CONF DLUPORT: DLU=dlu, LC=shf-mod-port, OST=ost;

Fig. 31


SN2012E5A0256

2.4.52.4.52.4.52.4.5 Remarks for DIAG-CMD and TEST-CMDRemarks for DIAG-CMD and TEST-CMDRemarks for DIAG-CMD and TEST-CMDRemarks for DIAG-CMD and TEST-CMD

Requirements for starting DLUD diagnosis

Diagnosis can only be performed if the peripheral units involved have the followingoperating state:

LTG: ACT or CBL

MB: ACT

SN: ACT or STB

CP: basic functions must be possible

The following diagnostic areas are used in the maintenance manual:

Diagnosis of the DLUD system

Diagnosis of the DLUD equipment

Diagnosis of the DLUD modules

Diagnosis of the DLUD System

Prerequisite: The DLUD system under diagnosis must be MBL.

Enter one of the following MML commands:

For system side 0:

DIAG DLU:DLU=dlu,DLUC0=Y

or

for system side 1:


For explanations of the command parameters see interrogating Operating State.

Diagnosis of the DLUD Equipment

Prerequisite: Both DLUD systems must be ACT or CBL. The equipment to be testedmust be MBL.

Diagnosis can be performed for a single module or a range of RGB modules.


DIAG DLUEQ:DLU=dlu, RGB=rgb


SN2012E5A0257

Diagnosis of the DLUD Modules

Prerequisites: Both DLUD systems must be ACT or CBL. The modules to be testedmust be MBL.

Diagnosis can be performed for a single module or a module range.


DIAG DLUMOD:DLU=dlu,MOD=shf-mod;

Testing of Subscriber Line Circuits

TEST SUBSCRIBER LINE CIRCUIT

This command tests analog subscriber line circuits in the DLUD designated by thedirectory number.

TEST SLC: [LAC= ,] DN= [,TTYPE=] [,SCHED=] [,PERM=] [,STEP=][,OPMOD=] [,LNO=] ;

TEST DLU LINE CIRCUIT

This command tests analog subscriber line circuits in the DLUD designated by theequipment number.

TEST DLULC: DLU= ,LC= [,TTYPE=] [,SCHED=] [,PERM=] [,STEP=] ;

For system side 0:


for system side 1:


DIAG DLUEQ:DLU=dlu, RGB=rgb

DIAG DLUMOD:DLU=dlu,MOD=shf-mod;

TEST SLC: [LAC= ,] DN= [,TTYPE=] [,SCHED=] [,PERM=] [,STEP=][,OPMOD=] [,LNO=] ;

TEST DLULC: DLU= ,LC= [,TTYPE=] [,SCHED=] [,PERM=] [,STEP=] ;

Fig. 32


SN2012E5A0258

2.52.52.52.5 CONF and STAT-CMD for RCUCONF and STAT-CMD for RCUCONF and STAT-CMD for RCUCONF and STAT-CMD for RCUTo enable the SASC of a DLU to take over the call processing in case of stand aloneservice it has to be configured to ACT by the command CONF DLUMOD (CONFDLUPORT is not required).

The operational state of the RCU equipment may be displayed by STAT RCU. (Thiscommand is only displaying the states as long as the DLU is not running in standalone service. In the stand alone service you can check the operation state of theSASC and the inter DLU links only by interpreting the LED of SASC.)


SN2012E5A0259

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

STATRCU:RCU=CLUST1; EXEC’DRCU:CLUST1

SIDE - 0 SIDE - 1ACCESS- ACCESS- ACCESS-

RCUMBR DLUC0_OST DEGRADING DLUC1_OST DEGRADING SASC_OST DEGRADING-------+----------+----------+-----------+----------+---------+---------+10-1 ACT NON ACT NON ACT NON20-2 ACT NON ACT NON ACT NONRCULNKRCUMBR<->RCUMBR STATUS-------+---------+-------+10-1 20-2 ACT

Fig. 33


SN2012E5A0260


SN2012E5A0261

3333 ExerciseExerciseExerciseExercise


SN2012E5A0262


SN2012E5A0263

Exercise 1Exercise 1Exercise 1Exercise 1

Title:Title:Title:Title: Status of DLU functional units

Objectives:Objectives:Objectives:Objectives: The participant is able to

� display the status of the functional units of the DLUB orDLUD

� interpret the status of the functional units of the DLUB orDLUD

Pre-requisite:Pre-requisite:Pre-requisite:Pre-requisite: DLUB or DLUD in operation

TaskTaskTaskTask

Write down all MML commands to get a display of the operational status of thefollowing units:

� PCM links DLU - LTG

� DLU systems

� DLU equipment

� DLU modules

� DLU Subscriber line circuits


SN2012E5A0264


SN2012E5A0265


Title:Title:Title:Title: DLUD LED Interpretation


� interpret the LEDs of the DLU in different situations

Pre-requisite:Pre-requisite:Pre-requisite:Pre-requisite: MMN:DLUD is available

TaskTaskTaskTask

Complete the following table by using the MMN:DLUD!

Situation LED

DLUS0

Indication

of LED

LED

DLUS1

Indication

of LED

LED

SASC

Indication

of LED

No access degrading(normal operation)

N/S

CCS

N/S

CCS

AL0

AL1

FLT

LCM

DCM

M/S

N/S

CCS

N/S

CCS

AL0

AL1

FLT

LCM

DCM

M/S

IN

L2

L1

L0

Emergency service N/S

CCS

N/S

CCS

AL0

AL1

FLT

LCM

DCM

M/S

N/S

CCS

N/S

CCS

AL0

AL1

FLT

LCM

DCM

M/S

IN

L2

L1

L0


SN2012E5A0266


SN2012E5A0267


Title:Title:Title:Title: Standard HW Fault Clearance DLU: Hands On Training


� perform the DLU fault clearance tasks of a network elementmanager

Pre-requisite:Pre-requisite:Pre-requisite:Pre-requisite: � Training exchange or Computer Based Simulator is available

� MMN, CML and ECD is available

TaskTaskTaskTask

Perform fault clearance for a given example!

QueryQueryQueryQuery

List the MMN procedure(s) which have to be performed!


SN2012E5A0268


SN2012E5A0269

4444 SolutionSolutionSolutionSolution


SN2012E5A0270


SN2012E5A0271

Solution 1Solution 1Solution 1Solution 1

Title:Title:Title:Title: Status of DLU functional units


� display the status of the functional units of the DLUB orDLUD

� interpret the status of the functional units of the DLUB orDLUD

Pre-requisite:Pre-requisite:Pre-requisite:Pre-requisite: DLUB or DLUD in operation

TaskTaskTaskTask

Write down all MML commands to get a display of the operational status of thefollowing units:

� PCM links DLU - LTG

� DLU systems

� DLU equipment

� DLU modules

� DLU Subscriber line circuits


SN2012E5A0272

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:25

6514 CA EWSD0 3102/01272

DISPDLU:DLU=10;

DLU SHELF DLUC0 DLUC1-----+-------+---------+--------

10 B 0-10-0-2 0-11-0-2

END JOB 6514

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:29

6515 CA EWSD0 3081/00045

STATDIU:LTG=0-10; ACCEPTED

END TEXT 6515

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:31

6515 CA EWSD0 3080/04515

STATDIU:LTG=0-10; EXEC'D

LTG DIU LTU TYPE APPLIC OST LTG OST DIU OST PCM-------+------+-----------+----------+-----------+----------+---------0-10 0 D30 CCSDLU ACT ACT ACT0-10 2 D30 EXTDLU ACT ACT ACT

END JOB 6515

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:35

6516 CA EWSD0 3081/00045

STATDIU:LTG=0-11; ACCEPTED

END TEXT 6516

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:37

6516 CA EWSD0 3080/04515

STATDIU:LTG=0-11; EXEC'D

LTG DIU LTU TYPE APPLIC OST LTG OST DIU OST PCM-------+------+-----------+----------+-----------+----------+---------0-11 0 D30 CCSDLU ACT ACT ACT0-11 2 D30 EXTDLU ACT ACT ACT

END JOB 6516


SN2012E5A0273

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:42

6517 CA EWSD0 3080/04127 HF.ARCHIVE-03246

STATDLU:DLU=10; EXEC'D

+ SIDE - 0: + SIDE - 1:+ ACCESS- + ACCESS-

DLU + DLUC-OST DEGRADING LTG LTG-OST + DLUC-OST DEGRADING LTG LTG-OST-----+---------+---------+----+--------+---------+---------+----+-------

10 ACT NON 0-10 ACT ACT NON 0-11 ACT

END JOB 6517

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:46


STATDLUEQ:DLU=10,RGMG=X; EXEC'D

DLU RGMG/ OST ACCESS-DEGRADINGRGB SIDE0 SIDE1

---------------------------------10 0 ACT NON NON10 1 ACT NON NON

END JOB 6518

X544/CTYCPZ1V1150/P21/010 98-05-19 14:35:24

1876 CA LOLO1 3080/01211 HF.ARCHIVE-03511

STATDLUEQ:DLU=10,RGB=X; EXEC'D

DLU RGMG/ OST ACCESS-DEGRADINGRGB SIDE0 SIDE1

---------------------------------10 0 ACT NON NON10 1 ACT NON NON

END JOB 1876

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:50


STATDLUMOD:DLU=10,MOD=0-8; EXEC'D

ACCESS-DEGRADATION PACCDLU MOD TYPE OST SIDE0 SIDE1 SIDE0 SIDE1-----+------------+----------+----+---------+---------+-------+------

10 0- 8 BDCG/GCG ACT NON NON NO NO

END JOB 6519


SN2012E5A0274

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:54


STATDLUEQ:DLU=10,DCC=X-X; EXEC'D

DLU DCC OST ACCESS-DEGRADINGSIDE0 SIDE1

--------------------------------10 0-0 ACT10 0-2 ACT10 1-0 ACT10 1-1 ACT10 1-2 ACT10 1-3 ACT10 2-0 ACT10 2-1 ACT10 2-2 ACT10 2-3 ACT10 3-0 ACT10 3-1 ACT10 3-2 ACT10 3-3 ACT

END JOB 6520

X544/CTYCPZ1V1150/P21/110 98-05-14 15:05:59


STATDLUMOD:DLU=10,MOD=X-X; EXEC'D

ACCESS-DEGRADATION PACCDLU MOD TYPE OST SIDE0 SIDE1 SIDE0 SIDE1-----+------------+----------+----+---------+---------+-------+------

10 0- 0 SLMAFPB ACT NON NON NO NO10 0- 1 TO 0- 2 SLMAFPE ACT NON NON NO NO10 0- 3 LCMM ACT NON NON NO NO10 0- 4 FMTU ACT NON NON NO NO10 0- 7 TO 0- 8 BDCG/GCG ACT NON NON NO NO10 1- 0 SLMX ACT NON NON NO NO10 2- 0 SLMAFPB ACT DST DST NO NO

END JOB 6521


SN2012E5A0275

X544/CTYCPZ1V1150/P21/110 98-05-14 15:06:03

6522 CA EWSD0 3080/04104

STATDLUPORT:DLU=10,LC=2-0-0&&2-0-7;

DLU LC MOD-TYPE OST ACCESS-DEGRADING NUC-STATUSSIDE0 SIDE1

-----+------------------+-----------+----+-----------------+------------10 2- 0- 0 TO 2- 0- 7 SLMAFPB ACT NAC NAC

END JOB 6522


SN2012E5A0276


SN2012E5A0277

Solution 2Solution 2Solution 2Solution 2

Title:Title:Title:Title: DLUD LED Interpretation


� interpret the LEDs of the DLU in different situations

Pre-requisite:Pre-requisite:Pre-requisite:Pre-requisite: MMN:DLUD is available

TaskTaskTaskTask

Complete the following table by using the MMN:DLUD!

Situation LED

DLUS0

Indication

of LED

LED

DLUS1

Indication

of LED

LED

SASC

Indication

of LED

No access degrading(normal operation)

N/S

CCS

N/S

CCS

AL0

AL1

FLT

LCM

DCM

M/S

1.2s

10s

1.2s

10s

off

off

off

on

on

on

N/S

CCS

N/S

CCS

AL0

AL1

FLT

LCM

DCM

M/S

1.2s

10s

1.2s

10s

off

off

off

off

off

off

IN

L2

L1

L0

off

off

off

off

Emergency service N/S

CCS

N/S

CCS

AL0

AL1

FLT

LCM

DCM

M/S

0.7s

480ms

0.7s

480ms

on

on

off

off

on

on

N/S

CCS

N/S

CCS

AL0

AL1

FLT

LCM

DCM

M/S

0.7s

480ms

0.7s

480ms

on

on

off

off

on

on

IN

L2

L1

L0

off

on

off

off


SN2012E5A0278

02_2012e5_dlu

Documents

dlu interface

local dlu

subscriber line module

creation of dlu modules

digital concentrator

analog subscriber lines

dlu hw types

analog subscribers modules