Engineering for BSC

Engineering for BSC

DN9981715Issue 7-0 en

# Nokia Siemens Networks 1 (118)

BSC3153Nokia GSM/EDGE BSS, Rel. BSS13, BSC andTCSM, Rel. S13, Product Documentation, v.1

The information in this document is subject to change without notice and describes only theproduct defined in the introduction of this documentation. This documentation is intended for theuse of Nokia Siemens Networks customers only for the purposes of the agreement under whichthe document is submitted, and no part of it may be used, reproduced, modified or transmitted inany form or means without the prior written permission of Nokia Siemens Networks. Thedocumentation has been prepared to be used by professional and properly trained personnel,and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomescustomer comments as part of the process of continuous development and improvement of thedocumentation.

The information or statements given in this documentation concerning the suitability, capacity, orperformance of the mentioned hardware or software products are given as is and all liabilityarising in connection with such hardware or software products shall be defined conclusively andfinally in a separate agreement between Nokia Siemens Networks and the customer. However,Nokia Siemens Networks has made all reasonable efforts to ensure that the instructionscontained in the document are adequate and free of material errors and omissions. NokiaSiemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues whichmay not be covered by the document.

Nokia Siemens Networks will correct errors in this documentation as soon as possible. IN NOEVENT WILL NOKIA SIEMENS NETWORKS BE LIABLE FOR ERRORS IN THISDOCUMENTATION OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL,DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY LOSSES, SUCH AS BUTNOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESSOPPORTUNITY OR DATA, THAT MAYARISE FROM THE USE OF THIS DOCUMENT OR THEINFORMATION IN IT.

This documentation and the product it describes are considered protected by copyrights andother intellectual property rights according to the applicable laws.

The wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark ofNokia Corporation. Siemens is a registered trademark of Siemens AG.

Other product names mentioned in this document may be trademarks of their respective owners,and they are mentioned for identification purposes only.

Copyright Nokia Siemens Networks 2008. All rights reserved.

2 (118) # Nokia Siemens Networks DN9981715Issue 7-0 en

Engineering for BSC

Contents

Contents 3

List of tables 5

List of figures 6

Summary of changes 9

1 Overview of Engineering for BSC 11

2 BSC in the GSM network 15

3 Introduction to BSC 173.1 Functional units of the BSC 173.2 BSC upgrade options 19

4 Mechanical construction of the BSC 234.1 Racks 234.2 Cartridges, plug-in units and internal cables 264.3 CPLAN-S and internal LAN cables 27

5 BSC rack descriptions 295.1 BSCE and BSCi 305.2 BSC2 345.3 BSC2i 375.4 Items for raised floor installation 41

6 Releases S9, S10, S10.5, S11, and S11.5 436.1 S9 release 436.2 S10 release 486.3 S10.5 release 506.4 S11 release 516.5 S11.5 release 52

7 Functional unit and cartridge descriptions for BSC 537.1 BCSU, Base Station Controller Signalling Unit 537.1.1 BSCE application 547.1.2 BSCi application 577.1.3 BSC2A/E 597.1.4 BSC2i 627.2 CLS, Clock and Synchronisation Unit 687.3 ET, Exchange Terminal 707.4 GSWB, Group Switch 757.5 MCMU, Marker and Cellular Management Unit 797.5.1 MCMU in BSC2A/E applications (S9) 807.5.2 MCMU in BSCi and BSC2i applications 817.6 OMU, Operation and Maintenance Unit 837.6.1 OMU in BSC2A/E applications 83



Contents

7.6.2 OMU in BSCi and BSC2i applications 867.7 Power Supply 917.8 Storage Device Cartridges 92

8 Power distribution for BSC 998.1 Power distribution to the rack equipment 998.2 Power consumption 102

9 Alarm system for BSC 1059.1 Collection of alarms 1069.2 Alarms from the TCSM2 1079.3 BTS alarm handling in the BSC 1079.4 BSS transmission equipment handling 1089.5 Nokia NetAct network management system 1089.6 Lamp Panel 109

10 Synchronisation for BSC 113

11 Management network topology for BSC 117


Engineering for BSC

List of tables

Table 1. Nokia DX 200 BSC product family 12

Table 2. Nokia GSM/EDGE PCU product family 13

Table 3. Capacities of the DX 200 BSC applications 29

Table 4. BSCE to BSCi upgrade 43

Table 5. BSC2A/E to BSC2i upgrade 45

Table 6. BSC2i S9 45

Table 7. S9 release standard items and optional items 46

Table 8. GPRS option deliveries of the BSC S9 deliveries 47

Table 9. Second PCU for the GPRS/EDGE option 48

Table 10. SMLC option 49

Table 11. BSC2i S10 49

Table 12. BSC2A/E application: allowed AS7 and PCU plug-in unitconfigurations 61

Table 13. BS2Ci application: allowed AS7 and PCU plug-in unit configurations 66

Table 14. SD3C-S accessories 93

Table 15. BSC2i power consumption 102

Table 16. BSC2E/A power consumption 103

Table 17. BSCi power consumption 103

Table 18. BSCE power consumption 104



List of tables

List of figures

Figure 1. Overview of the GSM/1800/1900 network 16

Figure 2. Block diagram of the DX 200 BSC 18

Figure 3. Overview of the GPRS core network 21

Figure 4. BSC equipment rack 24

Figure 5. Rack equipment of the BSCE S11 upgrade 31

Figure 6. Rack equipment of the BSCi - S11 upgrade 33

Figure 7. Rack equipment of the BSC2A/E - S11 upgrade 35

Figure 8. Rack equipment of the BSC2i S9 38

Figure 9. Rack equipment of the BSC2i - S11 40

Figure 10. Panel for eight D25 connectors 44

Figure 11. BCSU in the BSCE application 55

Figure 12. BCSU in the BSCE application PCU optional 56

Figure 13. BCSU in the BSCi application 57

Figure 14. BCSU in BSCi application PCU optional 58

Figure 15. BCSU in BSC2A/E application 59

Figure 16. BCSU in BSC2A/E applications PCU optional 60

Figure 17. BCSU in BSC2A/E applications the second PCU optional 61

Figure 18. BCSU in the BSC2i application 63

Figure 19. BCSU in BSC2i application PCU optional 64

Figure 20. BCSU in BSC2i application 65

Figure 21. BCSU in BSC2i application second PCU optional 66

Figure 22. BCSU in BSC2i application with AS7Xs and PCU-Ts 67

Figure 23. CLOC cartridge housing CL1TG and CL3TG plug-in units 69

Figure 24. CLAC cartridge housing CLAB plug-in units 70

Figure 25. ET1C cartridge for BSCi 72

Figure 26. ET5C cartridge for BSCi 73

Figure 27. ET5C cartridge for BSC2A and BSC2i, ANSI version 74

Figure 28. ET5C cartridge for BSC2E and BS2Ci, ETSI version 75


Engineering for BSC

Figure 29. SW1C cartridge for GSWB functional unit in the deliveries which do notinclude the optional GPRS functionality. 77

Figure 30. SW1C cartridge for GSWB functional unit in the deliveries which includethe optional GPRS functionality. 78

Figure 31. SW1C cartridge for GSWB functional unit in the deliveries which includethe optional GPRS/EDGE functionality. 79

Figure 32. Implementation of the MCMU in BSC2A/E 81

Figure 33. Implementation of the MCMU in BSCi and BSC2i 82

Figure 34. Implementation of the MCMU in BSC2i 83

Figure 35. Implementation of OMU in BSC2A/E 85

Figure 36. Implementation of OMU in BSC2i 88

Figure 37. Implementation of OMU in BSCi 89

Figure 38. Implementation of OMU in BSC2i 91

Figure 39. SD3C-S cartridge in BSCi and BSC2i 94

Figure 40. SD3CS Storage Device Cartridge with Magneto Optical DeviceOption 95

Figure 41. WDDC cartridges in BSC2A/E 97

Figure 42. Power distribution diagram of the BSC 101

Figure 43. Implementation model of the alarm system 105

Figure 44. Mechanical dimensions of the Lamp Panel 110

Figure 45. Synchronisation of the BSC 114

Figure 46. Nokia NetAct system interfaces (BSS includes BSC, TCSM2, transmissionequipment and BTS) 117



List of figures


Engineering for BSC

Summary of changes

Changes between document issues are cumulative. Therefore, the latestdocument issue contains all changes made to previous issues.

Changes made between issues 70 and 61

Issue 70 (S11.5)

S11.5 minimum requirement for CPU memory added: 256 MB for OMUand MCMU; 128 MB for BCSU.

Information on the new Second Generation Packet Control Unit, PCU2-U,and new 73 GB Hard Disk WDW73 added.

Editorial corrections.


Issue 61 (S11).

Structural changes.


Issue 60 (S11).

Information on the CPLAN-S panel, LAN connection options, new ET plug-in variants, and the MO device added.

Minor editing.


Issue 51 (S10.5).



Summary of changes

In section BSC rack desriptions, in the table 'Capacities of the DX 200BSC applications', the number of the TRXs is changed to 512 in case of'BSC2A/E upgrade to BSC2i' application.

Minor language corrections made.

Changes made between issues 4-0 and 5-0

Issue 5-0 (S10.5).

Information added on basic upgrades of the BSCE, BSCi, BSC2A andBSC2E and on first deliveries of the BSC2i. The basic upgrades includemandatory memory increase to 128 Mbytes in the OMU and MCMUfunctional units. The first deliveries include reservation of future LANconnections (CPLAN-S panels and CNI cables - redundant at S10.5 level)and installation of PCU-T plug-in units in the BCSU functional units.

Minor errors (misprints) corrected.


The fourth edition (S10 release).

The structure of the document revised and online modifications made.

AS7-X, CP6MX and PCU-S plug-in units included as well as the followingoptions: second PCU for GPRS/EDGE, SMLC, two new ET5C cartridges.


Approved issue 3-1.

In Section BCSU, Base Station Controller Signalling Unit, the followingchanges have been made: figures depicting the BCSU in the BSC2A/Eand BSC2i applications corrected; subsection and figure depicting GPRSupgrade of the BCSU in the BSCE application added. In Section OMU,Operation and Maintenance Unit, the figure depicting implementation ofOMU in the BCS2A/E corrected.

Information concerning types of plug-in units checked. Contents ofdeliveries checked.

Minor errors (misprints) corrected.


Engineering for BSC

1 Overview of Engineering for BSCEngineering for BSC describes overall dimensioning rules that should beconsidered when purchasing and planning the installation of the BaseStation Controller, BSC. The subjects covered, however, do not include theinstallation planning instructions for the station power supply equipment orthe PCM and alarm distribution frames.

The following items are discussed:

. BSC in the GSM network

. Introduction to the BSC

. Mechanical construction

. Rack descriptions

. Releases S9, S10, S10.5, S11 and S11.5

. Functional unit and cartridge descriptions

. Power distribution

. Alarm system

. Synchronisation

. Management network topology

Note

For engineering information on BSC3i, see Engineering for BSC3i andfor TCSM2, Transcoder and Submultiplexer, see Engineering forTCSM2.

The site requirements for the BSC are presented in Installation SiteRequirements for BSC and TCSM2. It provides the following information:



Overview of Engineering for BSC

. network element room layout

. dimensioning the station power supply and power distribution

. environmental requirements

. air conditioning, ventilation, and AC supplies

. cabling.

Use of terms

BSC, Base Station Controller, is a general term for all Nokia GSM/EDGEBSC versions. The BSC products are listed in Table Nokia DX 200 BSCproduct family.

Table 1. Nokia DX 200 BSC product family

Generalname

Product name Explanation

BSCE BSCE First generation Nokia DX 200 BSC

BSCi BSCi High Capacity (upgraded and improved) version of the firstgeneration Nokia DX 200 BSC

BSC2 BSC2A American National Standards Institute (ANSI) version of the secondgeneration Nokia DX 200 BSC2

BSC2 BSC2E European Telecommunications Standards Institute (ETSI) version ofthe second generation Nokia DX 200 BSC2

BSC2i BSC2i, ANSIversion

American National Standards Institute (ANSI) High Capacity versionof the Nokia DX 200 BSC2

BSC2i BSC2i, ETSIversion

European Telecommunications Standards Institute (ETSI) HighCapacity version of the Nokia DX 200 BSC2

BSC3i BSC3i, ANSIversion

American National Standards Institute (ANSI) High Capacity versionof the Nokia DX 200 BSC3i

BSC3i BSC3i, ETSIversion

European Telecommunications Standards Institute (ETSI) HighCapacity version of the Nokia GSM/EDGE BSC3i

When the information in the text is only applicable to one of the versions orapplications, the name of that specific version or application is used; andwhen the text is applicable to all versions and applications, the generalterm BSC is used.

PCU, Packet Control Unit, is a general term for all Nokia GSM/EDGE PCUversions. The PCU variants are listed in the table below.


Engineering for BSC

Table 2. Nokia GSM/EDGE PCU product family

General nameProductvariant name Explanation

Nokia First GenerationPacket Control Unit -PCU1

PCUPCU-SPCU-T

First generation PCU for BSCE, BSC2E/A, BSCi andBSC2i

PCU-B First generation PCU for BSC3i, includes two logical PCUs

Nokia SecondGeneration PacketControl Unit - PCU2

PCU2-U Second generation PCU for BSCE, BSC2E/A, BSCi andBSC2i

PCU2-D Second generation PCU for BSC3i, includes two logicalPCUs

Use of product names

The product names in the equipment documentation may be written with orwithout the variant designation; for example, plain ET2 may be usedinstead of ET2E-C or ET2E-SC.



Overview of Engineering for BSC


Engineering for BSC

2 BSC in the GSM networkThe Nokia GSM/EDGE Base Station Controller is a modern fault tolerantsystem for GSM 800, GSM 900, GSM 1800, and GSM 1900 networks. Themain function of the BSC is to control and manage the Base StationSubsystem (BSS) and the radio channels. Based on Nokia's longexperience in cellular networks, the BSC is designed for efficient use ofradio resources and it is easy to operate and maintain. The Nokia BSC is astable, mature and highly reliable product. One major feature of the BSC isits field-proven multivendor functionality.

The BSC can be located flexibly in the GSM network. It can be installed asstand-alone, on the same site as the Base Transceiver Station (BTS) itcontrols, or at a remote location, which can be either co-located or non-co-located with the Mobile Services Switching Centre (MSC). The mostcommon solution is to locate the BSC remotely from the MSC near theBTSs it controls and install the TransCoder SubMultiplexer (TCSM2) at theMSC site. Submultiplexing can then be used between the BSC and TCSMto reduce transmission costs.

Figure Overview of the GSM900/1800/1900 network shows an overview ofthe GSM800/900/1800/1900 network and the position of the BSC and theassociated TCSM2 in the network.



BSC in the GSM network

Figure 1. Overview of the GSM/1800/1900 network

For a general introduction, see Overview of Engineering for BSC.

2G

BTS BSC

WCDMABTS

WCDMARNC

3G

Radio Access Network Core Network

LandlineNetwork

(PSTN/ISDN)

IP

MSC

IN

TranscoderSubmultiplexerSIM

card

MGW

GSM/WCDMAmobile

GSM mobile

Navigator

WCDMAmobile

HLR

3G SGSN

2G SGSN

Internet

Intranet

3G SGSN

3G SGSN

abc def

mnojklghi

pqrs tuv wxyz

+

dn03524007


Engineering for BSC

3 Introduction to BSCBSC applications are based on a modular software (SW) and hardware(HW) structure. The distributed architecture of the BSC is implemented bya multi-processor system. In a multiprocessor system, the data processingcapacity is divided among several computer units (that is, functional units,FU), each of which has its own microcomputer.

As the call handling capacity of the BSC depends on the number of callcontrol computer units, the system can be flexibly dimensioned accordingto the capacity demand of the operator. And when there is need forexpanding the capacity, the system can be easily extended simply byadding new units to the existing configuration.


3.1 Functional units of the BSC

The functional units are composed of individual hardware and softwaremodules. The functional units of the BSC are the following:

. Group Switch (GSWB), used for switching speech and data, andconnecting signalling circuits

. Base Station Controller Signalling Unit (BCSU), which handles theBSC signalling functions an optional Packet Control Unit (PCU)handles, in turn, packet control functions in the BSC and is includedin every BCSU when GPRS service is implemented

. Marker and Cellular Management Unit (MCMU), which controls andsupervises the GSWB

. Operation and Maintenance Unit (OMU), which serves as aninterface between the user and the BSC, but also automaticallysupervises the BSC



Introduction to BSC

. The high-speed Message Bus (MB), which interconnects the callcontrol computers and the OMU

. Exchange Terminals (ET), which connect transmission systems tothe GSWB

. Clock and Synchronization Unit (CLS), which generates the clocksignals for the BSC

. Transcoder (TCSM2) which, though a separate network elementusually installed on the MSC site, is normally viewed as a functionalunit of the BSC (for further information, refer to the TCSM2 userdocumentation).

Figure 2. Block diagram of the DX 200 BSC

ET

SGSN

OMU

CLS

BCSU

ET

GSWB

BTS

ETMSC

MB

TCSM 2

X.25

PCU

A ter

Hard DiskDrive

MO Drive

External LAN Switchor

Router

IP

MCMU

ExternalLANSwitchorRouter

LAN

SGSN

LAN panel(EMC & NEinterface)

A

DN03511335


Engineering for BSC

3.2 BSC upgrade options

S11.5 upgrade options

There are no new deliveries for the M92 mechanics BSC applications inrelease S11.5, only upgrades. The S11.5 release offers, in addition to themandatory memory upgrade in OMU and MCMU (256 MB), and BCSU(128 MB), the following optional hardware upgrades:. PCU2-U, Second Generation Packet Control Unit. WDW73, 73 GB Hard Disk

S11 upgrade options

The following optional functionalities were introduced in the S11 release:

. Integrated LAN connection option

. Magneto Optical Disk Drive option

. SD3C-S upgrade option

Integrated LAN connections to BSCE, BSCi, BSC2A, BSC2E, andBSC2i

The hardware of Integrated LAN connections to BSCE, BSCi, BSC2A,BSC2E, and BSC2i consists of the following:

. integrated 24 port LAN-panel CPLAN-S and CNI type LAN cablesbetween the LAN ports of 2*PCUs/BCSU and all CPUs and the LAN-panel CPLAN-S (concerning BSC2i, not S10.5 first delivery-basedBSC2is, only prior to S10.5 first delivery-based BSC2is and BSC2iupgraded from BSC2E or BSC2A)

Magneto-Optical Disk Drive to BSCi and BSC2i

The hardware of Magneto-Optical Disk Drive to BSCi and BSC2i consistsof the following:

. 9,1 Gigabyte MO device MO91 to SD3C-S cartridge with ODAD-Adisk adapter and with SCSI bus connector SCBC

. 3,5'' cover adapters CA350 to the equipping slots of floppy disk andDAT drive



Introduction to BSC

Upgrading WDDC to SD3C-S for equipping Magneto-Optical DiskDrive to BSC2i upgraded from BSC2E or BSC2A

The hardware of upgrading WDDC to SD3C-S for equipping Magneto-Optical Disk Drive to BSC2i upgraded from BSC2E or BSC2A consists ofthe following:

. SD3C-S mass memory cartridge

. CJE type SCSI cable

. CFB type alarm cable

. hard disk adapter HDAD2-A (for WDW4, WDW9-S, WDW18,WDW18-S, and WDW36) or HDAD1-A (for thick WD3C1G orprevious) or HDAD-A (for WD3C4G and thin WD3C1G)

. power supply plug-in unit PSC4-S

. 9,1 Gigabyte MO device MO91 to SD3C-S cartridge with ODAD-Adisk adapter and with SCSI bus connector SCBC

. 3,5'' cover adapters CA350 to the former equipping slots of floppydisk and DAT drive

GPRS option

GPRS (General Packet Radio Service) was first introduced in S9 as anoptional feature. The GPRS core network is accessed from the host GSMnetwork via the BSCs: new plug-in units, Packet Control Units (PCUs) forpacket switching, are added in each BCSU functional unit in the BSCsconnected to the GPRS to provide a GSM with a packet radio access tothe GPRS core network. In the GPRS core network, the radio resourcesare shared by all mobiles in the cell: each mobile uses resources onlywhen data is sent or received. The sharing of resources and a very fastmethod of reserving radio channels make the use of the air interface moreefficient than before.

The Nokia GPRS solution features three main network elements, theServing GPRS Support Node (SGSN), the Gateway GPRS Support Node(GGSN), and the Charging Gateway. These network elements alone canhandle all the functionalities needed in the GPRS, as defined in the ITU-Trecommendations. Some optional external devices may be added to thenetwork when needed, for example, additional routers, which help to buildredundancy into the physical connections. Figure Overview of the GPRScore network shows an overview of the network.


Engineering for BSC

Figure 3. Overview of the GPRS core network

To function properly, the PCU plug-in units require the extended GSWB(with the 3rd SW64 plug-in unit), two DMCT2-Ss and the extra ET2s. Noother hardware changes, however, are required in the BSCs.

The PCUs are used for handling the GPRS functions in the BSC. Theseinclude channel allocation and management functions and protocolsneeded in the Abis and Gb interface. In other words, the PCUs are neededfor converting the data coming from the BTSs from TRAU frame format(Abis) to Frame Relay packets (Gb) prior to transmission to the GPRSnetwork, and vice versa.

BTS

BSC

MSC/VLR

PSTN

SS7NETWORK

HLR

CHARGINGGATEWAY

IP-SS7 GW

ROUTER

SERVER

CORPORATE 1

LOCALAREANETWORK

ROUTER

SERVER

CORPORATE 2

LOCALAREANETWORK

DATANETWORK(INTERNET)

GPRSINFRASTRUCTURE

DATANETWORK(X.25)

GPRSBACKBONENETWORK(IP BASED)

GATEWAY GPRSSUPPORT NODE(GGSN)

SERVINGGPRS

SUPPORTNODE

(SGSN)

DATANETWORK(OSI)

DN99253365



Introduction to BSC

The GPRS communicates on one hand with other network elements in theGSM900/1800/1900 system and on the other hand with equipment in thePacket Data Network using standard interfaces. The interface usedbetween the SGSN and GGSN depends on the type of the data networkaccessed.

Second PCU for GPRS/EDGE option

The second PCU for GPRS/EDGE option for the BSC2i and BSC2 wasfirst introduced in the S10 release.

Enhanced Data Rates for Global Evolution (EDGE) provides a newEnhanced GPRS (EGPRS) feature. EGPRS is used for higher data ratesthan the current GPRS configuration offers to further increase the packetprocessing capacity. The new hardware configuration can be implementedin a BSC which already has the S9 level GPRS PCUs by adding secondPCU (or PCU-S) plug-in unit to every BCSU unit. The implementation ofthe second PCU requires a GSWB extension from 192 to 256 PCMs.

SMLC option

The SMLC option was first introduced in S10.

Serving Mobile Location Center (SMLC) implements location calculationfor the BSC. This allows a GSM subscriber and/or valid mobile equipmentto be positioned with MS Location Services.

Two types of SMLC options are available, the integrated SMLC andstandalone SMLC. The standalone SMLC is supported with an Lbinterface in the BSC. The Lb interface is a software option with hardwarerequirements. The Lb interface is offered with the S11 release. Bothrequire CP6MX plug-in units.

Note

The CP6MX is standard in the BSC2i first deliveries. CP6 units requireMBIF-UA units, not the SMLC.

Optional ET5C cartridges

The maximum number of ETs can be extended from 112 to 144 in theBSC2i by adding two new ET5C cartridges on the bottom shelf of theBCEE rack.


Engineering for BSC

4 Mechanical construction of the BSCThe basic mechanical design of the BSC product family follows a standardhierarchy: racks, cartridges, plug-in units, and internal cables.


4.1 Racks

A rack is a standard frame into which the equipment of the BSC aremounted. The frame consists of side plates, doors, and top and bottomplates, which are made of sheet steel. Adjustable legs are fitted to thebottom.



Mechanical construction of the BSC

Figure 4. BSC equipment rack

Several racks can be joined together so that they form rack rows. Thesystem is easy to install, maintain and operate. Special attention has beenpaid to thermal factors and protection against interference. When the rackdoors are closed, each rack row constitutes an EMC-protected area. Theracks can be equipped with inclined air flow guides for cooling theequipment. Perforations in the doors also aid cooling.

BSCE and BSCi

Two basic types of racks are used in the BSCE and BSCi:

. BCBE and BCEE equipment racks (high rack)

. R2A1-S/-T cable rack (optional).

In addition, the optional CC22V vertical cable conduit can be used forrouting the external cables.

The dimensions of the high racks of the BSCE and BSCi and the verticalcable conduit are the following (H x W x D):

Perforationsin doors forcooling

DN9834315


Engineering for BSC

. the equipment racks 2200 mm x 600 mm x 450 mm (7.21 ft. x 23.6 inx 17.7 in)

. R2A1-S/-Tcable rack 2200 mm x 200 mm x 450 mm (7.21 ft. x 7.9 inx 17.7 in)

. CC22V cable conduit 2200 mm x 140 mm x 450 mm (7.21 ft. x 5.5 inx 17.7 in).

The depth of the racks is 450 mm (17.7 in) plus 50 mm (2 in) for the frontand rear doors (25 mm + 25 mm, or 1 in + 1 in). The total depth of a rackwith the doors installed is then 500 mm (19.7 in).

The length of the rack row increases by 80 mm (40 + 40 mm) or 3.2 in (1.6in + 1.6 in) when the side panels are installed.

The racks of the BSCE and BSCi stand on approximately 50 mm high (2in) adjustable legs. As there is a 150 mm (5.9 in) cable conduit or upperstructure (for routing cables) on top of a rack row, its maximum total heightis 2400 mm (7.87 ft.). Above the rack row, a space of at least 500 mm (19.7in) is required to ensure efficient ventilation.BSC2 and BSC2i

There are two basic types of racks used in the BSC2 and BSC2i:

. BCBE and BCEE equipment racks (low rack)

. R2A1-S/-T cable rack (optional).

In addition, the optional CC19V/-S vertical cable conduit can be used forrouting the external cables.

The dimensions of the low racks of the BSC2 and BSC2i and the verticalcable conduit are the following (H x W x D):. the equipment racks 1880 mm x 600 mm x 450 mm (6.17 ft. x 23.6 in

x 17.7 in). R2A1-S/-Tcable rack 1880 mm x 200 mm x 450 mm (6.17 ft. x 7.9 in

x 17.7 in). CC19V/-S cable conduit 1880 mm x 140 mm x 450 mm (6.17 ft. x 5.5

in x 17.7 in).

The depth of the racks is 450 mm (17.7 in) plus 50 mm (2 in) for the frontand rear doors (25 mm + 25 mm, or 1 in + 1 in). The total depth of a rackwith the doors installed is then 500 mm (19.7 in).




The length of the rack row increases by 80 mm (40 + 40 mm) or 3.2 in (1.6in + 1.6 in) when the side panels are installed.

The racks of the BSC2 and BSC2i stand on approximately 50 mm high (2in) adjustable legs. As there is a 90 mm (3.54 in) upper structure (forrouting cables) on top of a rack row, its maximum total height is 2020 mm(6.63 ft). Above the rack row, a space of at least 500 mm (19.7 in) isrequired to ensure efficient ventilation.

4.2 Cartridges, plug-in units and internal cables

Cartridges

The racks are delivered from Nokia with all the cartridges already installed.The cartridges are made of stainless steel. The dimensioning of thecartridges is based on IEC recommendations and the dimensions of thecartridges are the following:

. 1/2-shelf cartridges: 262 mm x 240 mm x 240 mm (10.3 in x 9.45 in x9.45 in)

. 1/3-shelf cartridges: 262 mm x 180 mm x 300 mm (10.3 in 7.1 in 11.5 in)

. 1/4-shelf cartridges: 262 mm x 120 mm x 300 mm (10.3 in x 4.72 in x11.5 in).

Plug-in units

The printed circuit boards of the plug-in units used in the BSC applicationsare multi-layered. They are covered with a protective coating, whichmakes them easier to handle and protects the foils against scratches.

The dimensions of the plug-in units used in the BSCi, BSC2, and BSC2iare as follows:

. 100 mm x 220 mm (3.94 in x 8.66 in)

. 110 mm x 220 mm (4.33 in x 8.66 in)

. 233.4 mm x 160 mm (9.19 in x 6.3 in)

. 233.4 mm x 220 mm (9.19 in x 8.66 in).

High quality SMB, RJ45, D- and Euroconnectors are used as connectors.Both surface-mounted and hole-mounted components are used.


Engineering for BSC

Internal cables

In their internal cabling, the DX 200 network elements use cut-to-lengthcables equipped with connectors. BSC racks are delivered from the factorywith all the internal cables already installed. In the two-rack configuration,the cables connecting the BCBE rack to the BCEE rack are connected tothe BCEE rack.

If the network element room has a raised floor under which the cables areplaced, there are vertical cable conduits and a cable rack.

4.3 CPLAN-S and internal LAN cables

CPLAN-S panels

Integrated 24port CPLAN-S panels for Ethernet interfaces were introducedin release S11. Two panels are mounted in place of the top plate on top ofthe BCBE and BCEE racks in the existing BSCE and BSCi networkelements.

CPLAN-S is identical to the CPLAN24, with changes only in the width ofthe panel and the layout of the connector-adapters. Two CPLAN-S panels(24 + 24 = 48 LAN ports) can be equipped to one 600 mm wide cabinet.CNI type LAN cables

CNI type LAN cables are routed between the LAN ports of PCUs / BCSUand all CPUs and the LAN-panel CPLAN-S.

The LAN cable is also used for external LAN cabling between the CPLAN-S LAN panel and external LAN switch or router.





Engineering for BSC

5 BSC rack descriptionsThe standard configuration of DX 200 BSC applications is a two-rackconfiguration consisting of one Base Station Controller Basic Equipmentrack (BCBE) and one Base Station Controller Extension Equipment rack(BCEE).

The maximum capacities of the DX 200 BSC applications mounted into theBCBE and BCEE racks are presented in Table Capacities of the DX 200BSC applications.

Table 3. Capacities of the DX 200 BSC applications

Application Maximumconfiguration

BSCE 256 TRX / 56 PCM

BSCi 512 TRX / 88 PCM

BSC2A/E 256 TRX / 80 PCM(upgradeable to 144PCM)

BSC2A/Eupgrade toBSC2i

512 TRX / 112 PCM

BSC2i ET2,ANSi

512 TRX / 144 PCM

BSC2i ET2,ETSI

512 TRX / 144 PCM


For more information on BSC products, see High Capacity Base StationController, BSC2i, BSCi and Product Description for TCSM2A andTCSM2E.



BSC rack descriptions

5.1 BSCE and BSCi

Basic configuration of BSCE

The basic configuration of the BCBE rack of the original BSCE applicationconsists of the following units:

. two Power Distribution Units

. two Switching Unit Cartridges (SW1C)

. Connector Bracket (CBD2)

. one Clock and Synchronization Cartridge (CLAC - in the olderdeliveries)

. one Clock and Synchronization Cartridge (CLOC - in the newerdeliveries)

. two Marker and Cellular Management Units (MCMU)

. two Winchester Disk Drive Cartridges (WDDC0, WDDC1)

. one Operation and Maintenance Unit (OMU)

. two Exchange Terminal Cartridges (ET1C)

. three Base Station Controller Signalling Units (BCSU)

. LAN connector panels CPLAN-S (2 pcs/BCBE; 2 pcs/BCEE) inplace of the top plates in the M92 rack.

The basic configuration of the BCEE rack of the original BSCE applicationconsists of the following units:

. two Power Distribution Units

. one Clock and Alarm Cartridge (CLAC)

. five Exchange Terminal Cartridges (ET1C)

. six Base Station Controller Signalling Unit cartridges (BCSU).


Engineering for BSC

Figure 5. Rack equipment of the BSCE S11 upgrade

151

177

123

089

061

027

0

DN03492354

BSC

MCMU 0MC1C

MCMU 1MC1C

SW1C1

OMUMC1C

BCSU 1MC1C

BCSU 2MC1C

ET1C 0 ET1C 1

01 27

2701

01

BCBE

01

27

27

BCSU 0MC1C

WD

DC

0

CLOC

01

25

13

SW1C0

01

CBD 2

WD

DC

1

37

CC22V

ET1C 4 ET1C 5

ET1C 2 ET1C 3

CLAC ET1C 6

BCSU 3MC1C

BCSU 4MC1C

BCSU 7MC1C

01

01

BCSU 5MC1C

BCSU 6MC1C

01 27

01

BCEE

01

27

01 25

25

BCSU 8MC1C

27

25

R2A1-S

PSA20_0PSFP0

PSA20_1PSFP1

PSA20_2PSFP2

PSA20_3PSFP3

CPLAN-S 0 CPLAN-S 1 CPLAN-S 2 CPLAN-S 3

WD

DC

1

BCSU 6MC1C

BCSU 7MC1C




BSCE upgrade to BSCi delivery

The basic configuration of the BCBE rack of the BSCi consists of thefollowing units:

. two Power Distribution Units (PSA20 and PSFP)

. two Switching Unit Cartridges (SW1C) for GSWB

. Connector Bracket for D Connectors (CBD8)

. one Clock and Synchronization Cartridge (CLOC)


. two Storage Device cartridges (WDDC)



. three Base Station Controller Signalling Units (BCSU)

. LAN connector panels CPLAN-S (2 pcs/BCBE; 2 pcs/BCEE) inplace of the top plates in the M92 rack.

The following items are optional: the third SW64B plug-in unit in the GSWBunit, one Storage Device Cartridge (SD3C-S) and, Exchange TerminalCartridge (ET5C, housing ET2 plug-in units), and the integrated LANconnections option.

The basic configuration of the BCEE rack of the BSCi consists of thefollowing units:





The following items are optional: one Exchange Terminal Cartridge (ET5C,housing ET2 plug-in units) and the integrated LAN connections option.

Note

In S11.5 the minimum memory capacity requirement for CPUs is 256MB in OMU and MCMU, 128 MB in BCSU.


Engineering for BSC

Figure 6. Rack equipment of the BSCi - S11 upgrade

DN03492366

ET1C 4 ET1C 5

ET1C 2 ET1C 3

CLAC ET1C 6

BCSU 4MC1C

BCSU 6MC1C

27

01

01

27

01 25

25

BCSU 8MC1C

27

25

BCEE

ET

5C

1

13

MCMU 0MC1C

MCMU 1MC1C

GSWB 1SW1C1

ET1C 0 ET1C 1

BCSU 2MC1C

27

2701

01

27

27

BCSU 0MC1C

ET

5C

0

CLOC

01

25

13

GSWB 0SW1C0

01

CBD 8

SD3C-S

PSA20_2PSFP2

PSA20_3PSFP3

PSA20_0PSFP0

PSA20_1PSFP1

BCBE

27

BSCi

CC22VR2A1-S

177

01151

123

089

061

027

0


BCSU 1MC1C

01

OMUMC1C

01

BCSU 7MC1C

01

BCSU 5MC1C

01

BCSU 3MC1C

01




5.2 BSC2

BSC2A/E

The basic configuration of the BCBE rack of the BSC2A/E consists of thefollowing units:


. two Switching Unit Cartridges (SW1C) for GSWB

. Connector Bracket (CBD2)

. one Clock and Synchronization Cartridge (CLOC)


. two Winchester Disk Drive Cartridges (WDDC)



. three Base Station Controller Signalling Units (BCSU).

The basic configuration of the BCEE rack of the BSC2A/E consists of thefollowing units:





The CP4HL plug-in unit is used as the central processing unit (CPU) of themicrocomputer units of the BSC2A/E. The plug-in unit contains a 32-bit80486 processor circuit. The processor circuit operates in protectedoperating mode where the size of its address space is 4 Gbytes (4.295Mbytes). The plug-in unit has up to 256 Mbytes of DRAM and a 100 MHzIntel 80486 processor.

The bottom shelf in the BCEE rack and the two extra ET5C cartridges onthe shelf are optional in the BSC2A/E.


Engineering for BSC

Note


Figure 7. Rack equipment of the BSC2A/E - S11 upgrade

BCSU 8MC1C

PSA20_0PSFP0

PSA20_1PSFP1

PSA20_2PSFP2

PSA20_3PSFP3

DN03492381

GSWB 0SW1C0

01

GSWB 1SW1C1

19

CLSCLOC

37

MCMU 0MC1C

01

MCMU 1MC1C

27

BCSU 3MC1C

01

BCSU 4MC1C

27

BCSU 5MC1C

01

BCSU 6MC1C

27

BCSU 7MC1C

01

BCSU 1MC1C

01

ET

5C

0

01

ET

5C

1

13

CLABCLAC

ET

5C

2

ET

5C

3

ET

5C

4

01 13 3725

BCBE BCEE

WD

DC

1

01

WD

DC

0

13 27

OMUMC1C

CBD 2

27

BCSU 0MC1C

27

BCSU 2MC1C

27

BSC2

CC19V R2A1-S

152

01120

088

058

030

002





Note

GPRS upgrade requires a third SW64B.

Note

The BSC2 also includes the integrated LAN connections option.

BSC2A/E upgrade to BSC2i delivery

The basic configuration of the BSC2A/E upgrade to BSC2i consists of tworacks: the BCBE and BCEE. The BCBE rack consists of the following units(also shown in figures illustrating the rack equipment of the BSC2i):. two Power Distribution Units (PSA20 and PSFP). two Switching Unit Cartridges (SW1C) for GSWB. one Clock and Synchronization Cartridge (CLOC). one Connector panel for additional MML interfaces (CBD8). two Marker and Cellular Management Units (MCMU). two Winchester Disk Drive Cartridges (WDDC). one Operation and Maintenance Unit (OMU). two Exchange Terminal Cartridges (ET5C). three Base Station Controller Signalling Units (BCSU).

The BCEE rack consists of the following units (see Figure 8 Rackequipment of the BSC2i):. two Power Distribution Units (PSA20 and PSFP). one Clock and Alarm Cartridge (CLAC). five Exchange Terminal Cartridges (ET5C). six Base Station Controller Signalling Unit cartridges (BCSU).


Engineering for BSC

Note

The BSC2A/E upgrade to BSC2i deliveries include CP6LX plug-in unitsas central processing units and the new ET2, AS7-V, AS7-VA, MBIF-UAand SERO-T plug-in units. The third SW64B plug-in unit in the GSWBunits in the BCBE rack, the bottom shelf in the BCEE rack and the twoextra ET5C cartridges on the shelf are optional (see Figure 8 Rackequipment of the BSC2i).

5.3 BSC2i

S9

The basic configuration of the BSC2i consists of two racks: the BCBE andBCEE. The BCBE rack consists of the following units (see Figure Rackequipment of the BSC2i S9):. two Power Distribution Units (PSA20 and PSFP). two Switching Unit Cartridges (SW1C) for GSWB. one Clock and Synchronization Cartridge (CLOC). one Connector panel for additional MML interfaces (CBD8). two Marker and Cellular Management Units (MCMU). one Storage Device Cartridge (SD3C-S). one Operation and Maintenance Unit (OMU). two Exchange Terminal Cartridges (ET5C). three Base Station Controller Signalling Units (BCSU).

The BCEE rack consists of the following units (see Figure Rack equipmentof the BSC2i S9):. two Power Distribution Units (PSA20 and PSFP). one Clock and Alarm Cartridge (CLAC). five Exchange Terminal Cartridges (ET5C). six Base Station Controller Signalling Unit cartridges (BCSU).




The CP6LX plug-in unit is used as the central processing unit (CPU) of themicrocomputer units of the BSC2i. The plug-in unit incorporates an IntelMobile Pentium II 266 MHz Microprocessor with SDRAM memory, utilizingthe Intel B440 chipset. It is a single board computer, with an onboard PCIbus and an interface to DMC bus.

Figure 8. Rack equipment of the BSC2i S9

PSA20_0PSFP0

PSA20_1PSFP1

PSA20_2PSFP2

PSA20_3PSFP3

GSWB 0SW1C0

01

GSWB 1SW1C1

19

MCMU 0MC1C

01

MCMU 1MC1C

27

BCSU 3MC1C

01

BCSU 4MC1C

27

BCSU 5MC1C

01

BCSU 6MC1C

27

BCSU 7MC1C

01

BCSU 1MC1C

01

ET

5C

0

01

ET

5C

1

13

CLABCLAC

ET

5C

2

ET

5C

3

ET

5C

4

01 13 3725

27

OMUMC1C

27

ET

5C

5

01

ET

5C

6

13

27

BCSU 8MC1C

BCSU 0MC1C

27

BCSU 2MC1C

27

CBD 8

27

SD3C-S

01

DN9834639

CLSCLOC

37

BCBE BCEE

27

BSC2i

CC19V R2A1-S

152

01120

088

058

030

002


Engineering for BSC

S10

The following new items were included in the basic S10 hardware delivery:

. fourth SW64B plug-in unit and a SWBUS4 for both GSWBs

. CP6MX (in the MCMU, OMU and BCSU)

. two new ET5C cartridges and the cabling needed (PDFU, CLS andPCM)

. AS7-X in all computer units.

Note

CP6MX is equipped with a 128 Mbytes memory.

S10.5

S10.5 includes the following items for the reservation of LAN connections:

. two 24-port LAN panels in both rack types (BCBE and BCEE) on thetop of the rack

. CNI-type LAN cable.

S11

In S11, the upgrade is similar to that of S10.5, but in S11, LAN connectionsare attached to the connectors of the CPU. The ET plug-in unit variants aredifferent in S11.




Figure 9. Rack equipment of the BSC2i - S11

PSA20_0PSFP0

PSA20_1PSFP1

PSA20_2PSFP2

PSA20_3PSFP3

GSWB 0SW1C0

01

GSWB 1SW1C1

19

01

MCMU 1MC1C

27 01 27

01 27

01

01

ET

5C

0

01

ET

5C

1

13

CLABCLAC

ET

5C

2

ET

5C

3

ET

5C

4

01 13 3725

27

OMUMC1C

27

ET

5C

5

01

ET

5C

6

13

2727

27

CBD 8

27

SD3C-S

01

CLSCLOC

37

BCBE BCEE

27

BSC2i

R2A1-S

152

01120

088

058

030

002

ET

5C

7

25

ET

5C

8

37


MCMU 0MC1C

BCSU 0MC1C

BCSU 1MC1C

BCSU 2MC1C

BCSU 7MC1C

BCSU 8MC1C

BCSU 3MC1C

BCSU 4MC1C

BCSU 5MC1C

BCSU 6MC1C

CC19V

DN03485525


Engineering for BSC

Note


5.4 Items for raised floor installation

If there is a raised floor in the equipment room, the incoming and outgoingcables can be placed under the floor and entered to the equipment racksthrough a vertical cable conduit CC22V (BSCE and BSCi) or CC19V/-S(BSC2, BSC2i) and a cable rack (R2A1-S/-T).

The R2A1-S/-T is used for all other types of cables, except for the powersupply cables. It can be placed at either end of the rack row, or betweentwo equipment racks. The power supply cables must be brought in throughthe conduit CC22V or CC19V/-S, which is always placed at either end ofthe rack row.

The height and depth of the cable conduit and the cable rack are the sameas those of the TC2E rack. The width measures for each item are:

. 140 mm / 5.5 in for the Cable Conduit assembly CC19V/-S orCC22V

. 200 mm / 7.9 in for the Cabling Rack assembly R2A1-S/-T, completewith the Door Set DS192 (BSC2) and Door Set DS222 (BSCE).





Engineering for BSC

6 Releases S9, S10, S10.5, S11, and S11.5The following sections provide information on the implementation ofupgrades, first deliveries and options for the BSC releases S9, S10, S10.5,S11, and S11.5.

For general introduction, see Overview of Engineering for BSC.

6.1 S9 release

The S9 release consists of basic upgrade deliveries, first deliveries, andoptional GPRS deliveries of all BSCs.

The S9 release requires the GWSB unit in the SW1C cartridge as did theS8 release.

Even if the basic S9 software release does not require any changes in thehardware, first deliveries and upgrade deliveries include new ET2, AS7-V,AS7-VA (High Capacity deliveries only) plug-in units. The current AS7 andET2 plug-in units need not be replaced by new variants.

BSCE to BSCi upgrade delivery

The current BSCE can be upgraded to BSCi by integrating the hardwareitems listed in Table BSCE to BSCi upgrade into the microcomputer unitsaccording to the Equipment List in the Site Documentation.

Table 4. BSCE to BSCi upgrade

Status Name Item Note

Standard CP6LX Plug-in unit

MBIF-UA Plug-in unit

AS7-V Plug-in unit



Releases S9, S10, S10.5, S11, and S11.5

Table 4. BSCE to BSCi upgrade (cont.)

Status Name Item Note

SERO-T Plug-in unit

DMCT2-S Terminator for DMCbus

Optional ET5C Cartridge

ET2E-S, ET2E-SC Plug-in unit With ET5C andSD3C-S upgrade

GSWB cables forET2s

Cable With ET5C andSD3C-S upgrade

SW64B (third) Plug-in unitSD3C-S Cartridge

Alarm cables forStorage Devicecartridges

SCSI cabling

CBD8 Panel for 4 LPT and 4MML interfaces(SERO-T)

PCMCO05 Cross-connectionmodule to OMU

The CP6LX plug-in unit is used as the central processing unit (CPU) of themicrocomputer units of the BSCi and BSC2i. The plug-in unit incorporatesan Intel Mobile Pentium II 266 MHz Microprocessor with SDRAM memory,using the Intel B440 chipset. It is a single board computer, with an onboardPCI bus and an interface to DMC bus. In the S9 release, the ET2E-S andET2E-SC plug-in units are delivered instead of the ET2E and ET2E-Cplug-in units.

In the BSCi applications, BCBE rack houses a Connector panel (CBD8;Connector Bracket for D connectors). This eight-slot connector panel isneeded for the interfaces provided by SERO-T. All slots are in use (fourVDUs and four LPTs; see Figure Panel for eight D25 connectors).

Figure 10. Panel for eight D25 connectors

:::::::::::::::::: :::::::::::::::::: :::::::::::::::::: :::::::::::::::::: :::::::::::::::::: :::::::::::::::::: :::::::::::::::::: ::::::::::::::::::

DN9834533

VDU 0 VDU 3VDU 2VDU 1 LPT 0 LPT 1 LPT 2 LPT 3


Engineering for BSC

BSC2A/E first delivery

The S9 first delivery BSC2A/E, ET2E-S and ET2E-SC plug-in units aredelivered instead of ET2E and ET2E-C plug-in units in earlier deliveries.

BSC2A/E to BSC2i upgrade delivery

The existing BSC2A/E can be upgraded to BSC2i by integrating thefollowing cartridges and plug-in units into the microcomputer unitsaccording to the Equipment list in the Site Documentation. (See TableBSC2A/E to BSC2i upgrade.)

Table 5. BSC2A/E to BSC2i upgrade

Status Name Note

Standard CP6LX Plug-in unit


AS7-V, AS7-VA Plug-in unit

SERO-T Plug-in unit

DMCT2-S DCM bus terminator

Optional ET5C Cartridge

ET2E-S, ET2E-SC Plug-in unit

BSC2i first delivery

The following new hardware listed in Table BSC2i S9 is included in the firstdeliveries of the BSC2i).

Table 6. BSC2i S9

Name Item

Two extra ET5C cartridges Cartridge

SD3C-S Cartridg

CP6LX with 64 Mbytes of RAM Plug-in unit




SERO-T Plug-in unit




Table 6. BSC2i S9 (cont.)

Name Item

Additional SW64B plug-in units in theSW1C cartridges (192 PCMs) andnew panel connectors (SWBUS3) forthem

Plug-in unit

Bottom shelf in the BCEE rack for theextra ET5C cartridges

Other hardwareequipment

DMCT2-S DMC bus terminator

CBD8 Connector panel for fourLPT and four MMLinterfaces (SERO-T)

SCSI cabling Cables

Alarm cables for Storage Devidecartridges

Cables

GSWB cables for the extra ET2s Cables


Note

In the BSC2i application, the High Capacity BCBE rack houses aConnector panel (CBD8; Connector Bracket for D connectors). Thiseight-slot connector panel is needed for the interfaces provided bySERO-T. All slots are in use (four VDUs and four LPTs).

The S9 release first hardware deliveries of the BSC2i differ from the S8deliveries mainly on plug-in unit level: In ANSI environment, the AS7-VAplug-in units are delivered instead of the AS7-US plug-in units but theET2A plug-in units remain as they are. In ETSI environment, the ET2E-Sand ET2E-SC are delivered instead of ET2E and ET2E-C plug-in unitsrespectively. Because the GPRS is optional, the PCU plug-in unit and theaccompanying CFN PCM cable are optional in both environments (seeTable S9 release standard items and optional items).

Table 7. S9 release standard items and optional items

ANSI ETSI

Standard AS7-VA plug-in unit AS7-V plug-in unit


Engineering for BSC

Table 7. S9 release standard items and optional items (cont.)

ANSI ETSI

ET2A plug-in unit ET2E-S, ET2E-SC plug-inunit

Optional PCU plug-in unit PCU plug-in unit

3rd SW64; required by thePCU

3rd SW64; required by thePCU

CFN PCM- cable CFN PCM cable*)

*) The PCM cable is of type CFN and the PCM interface is on the frontpanel of the PCU.

GPRS option

The S9 deliveries can also include the GPRS option. The GPRS featurerequires one PCU plug-in unit in slot 09 in every BCSU (and otherhardware depending on the application). The contents of the GPRSupgrade delivery are presented in Table GPRS option deliveries of theBSC S9 deliveries.

Table 8. GPRS option deliveries of the BSC S9 deliveries

Item BSCE BSCi BSC2 BSC2i

PCU x x x x

CFN PCMcable

x x x x

SW64B (3rd) x x x xET5C x x x

ET2E-S,ET2E-SC

x x x

DMCT2-S(two)

x x

SD3C-S x x

AS7-VA x




6.2 S10 release

The S10 release consists of basic upgade deliveries, second PCU forGPRS/EDGE option deliveries, SMLC option deliveries and first deliveries(the BSC2i only).Basic upgrade

The memory of the CPU plug-in unit must be at least 64 Mbytes.Therefore, with the BSCE, and BSC3A/E, the CP4C32 must be replacedwith a more powerful CPU unless it has been replaced earlier. With theBSC2i and BSCi, no hardware changes are necessary.

Second PCU for GPRS/EDGE option delivery

With the BSC2A/E and BSC2i, the second PCU for GPRS/EDGE optiondelivery includes the items listed in Table Second PCU for the GPRS/EDGE option.

Table 9. Second PCU for the GPRS/EDGE option

BSC2A/E BSC2i

AS7-X First deliveries: allpositions

SW64B, fourth Yes Yes

PCU(-S), first 09 *) 09 *)PCU(-S), second 07 08CFN type PCM Yes Yes

DMCT2-S *)ET5C Yes Yes

PDFU, CLS, PCMcables

Yes Yes

*) if not installed earlierSMLC option

With the BSCE, BSCi, BSC2A/E and BSC2i, the SMLC option deliveryincludes the following new items, see Table SMLC option.


Engineering for BSC

Table 10. SMLC option

BSCE BSCi BSC2A/E BSC2i

CP6MX *) Yes Yes Yes YesMBIF-UA **) Yes YesDMCT2-S Yes Yes Yes Yes

*) in both MCMUs

**) in all computer units, if not installed earlierFirst delivery

The S10 first delivery of the BSC2i is as follows, see Table BSC2i S10:

Table 11. BSC2i S10

Name Item

Two extra ET5C cartridges Cartridge

SD3C-S Cartridg

CP6LX with 64 Mbytes of RAM Plug-in unit

CP6MX (with 128 Mbytes of RAM) Plug-in unitMBIF-UA Plug-in unit



AS7-X Plug-in unit

SERO-T Plug-in unit

Additional SW64B plug-in units in theSW1C cartridges (256 PCMs) andnew panel connectors (SWBUS4) forthem

Plug-in unit

Bottom shelf in the BCEE rack for theextra ET5C cartridges

Other hardwareequipment

DMCT2-S DMC bus terminator

CBD8 Connector panel for fourLPT and four MMLinterfaces (SERO-T)




Table 11. BSC2i S10 (cont.)

Name Item

SCSI cabling Cables

Alarm cables for Storage Devidecartridges

Cables

GSWB cables for the extra ET2s Cables


The CA525 replaces the earlier CDAD-A.

S10 first deliveries of the BSC2i consist also of the following optionaldeliveries: (S9) GPRS option delivery, second PCU for GPRS/EDGEoption delivery and SMLC option delivery:

. The (S9) GPRS option delivery includes one PCU-S plug-in unit inslot 09 and the CFN cables needed in all BCSUs.

. The Second PCU for GPRS/EDGE option delivery includes secondPCU-S plug-in unit in slot 08 and the CFN cables needed in allBCSUs.

. The SMLC option delivery (that is, the CP6MX plug-in unit) isincluded in the basic delivery.

6.3 S10.5 release

S10.5 basic upgrade

Due to new functionalities, memory requirement is increased to 128Mbytes in OMU and MCMU functional units in all BSCs. The OMU andMCMU units are therefore equipped with additional memory modules -unless the CP6MX CPU has been installed earlier (at S10 level).S10.5 first delivery

The S10.5 release first deliveries include the BSC2i only and the mostimportant new hardware feature in the release is the reservation of LANconnections which includes the following items:


Engineering for BSC

. two 24-port LAN panels in both rack types (BCBE and BCEE)instead of the top plate

. CNI-type LAN cables to be used as internal cables between CPLAN-S panel and the LAN port in the front panel of the CPU or PCU plug-in unit (and later also as external cables between the CPLAN-S andan external LAN switch or router).

In addition, the CP6MX CPU and PCU-T plug-in units are standard in theS10.5 release first deliveries. The PCU-Ts are equipped in the BCSUfunctional units instead of the earlier PCU and PCU-S plug-in units.

6.4 S11 release

S11 basic upgrade

The S11 minimum requirement for the CPU memory of all the computerunits (OMU, MCMU, and BCSU) is 128 Mbytes.S11 upgrade options

The S11 release offers the following optional functionalities:

. the integrated LAN connection option for the BSCE; BSCi, BSC2Aand BCS2E; BSC2i upgraded from the BSC2A or the BCS2E, priorto the BSC2i first delivery as delivered before release S10.5. Theoption can be configured to all older BSC network element types.

. Magneto Optical Disk Drive option to the BSCi upgraded from theBSCE (with WDDC cartridge and with SD3C-S cartridge), the BSC2iupgraded from the BSC2A or BSC2E, and BSC2i first delivery asdelivered before S10.5

. the SD3C-S upgrade option for upgrading the old Mass Memorycartridge WDDC to the SD3C-S cartridge, which must be installedfor the MO device option.

. new ET plug-in units option for the BSCi, the BSC2A and BSC2E;the BSC2i upgraded from the BSC2A or the BCS2E, the BSC2i firstdelivery as delivered before S10.5

The following optional hardware features offered in the previous releasesare still available:

. the SMLC option (starting from S11, a Standalone SMLC over the Lbinterface).




S11 upgrade

In S11, the upgrade is similar to that of S10.5, but in S11 LAN connectionsare attached to the connectors of the CPU. ET plug-in unit variants aredifferent.

6.5 S11.5 release

There are no first deliveries in the S11.5 release, only upgrades.

S11.5 basic upgrade

S11.5 minimum requirement for the CPU memory is 256 MB for OMU andMCMU, and 128 MB for BCSU.

S11.5 optional upgrade

The S11.5 release offers the following optional upgrades:

. PCU2-U, Second Generation Packet Control Unit

. WDW73, 73 GB Hard Disk


Engineering for BSC

7 Functional unit and cartridgedescriptions for BSC

All BSC variants consist of functional units such as BCSU, OMU, andMCMU. The BSCE and BSCi only differ from the BSC2 and BSC2i for thepart of ET plug-in units and AFS-T which controls ET1E plug-in units.

S9, S10, S11, and S11.5 releases cause changes in some or all of thefollowing functional units:

. Base Station Controller Signalling Unit (BCSU)

. Exchange Terminal (ET)

. Marker and Cellular Management Unit (MCMU)

. Operation and Maintenance Unit (OMU).

Note

Redundant functional units should be identical in the BSC.


7.1 BCSU, Base Station Controller Signalling Unit

The hardware of the BCSU is housed in a MC1C cartridge. The basicconfiguration of the BCSU is shown in the figures illustrating the BCSU inthe different applications. The dimensions of a MC1C cartridge are (heightx width x depth): 262 mm x 240 mm x 240 mm; or 10.3 in x 9.45 in x 9.45in.

The dimensions of the plug-in units are (height x depth): 233.4 mm x 160mm; or 9.19 in x 6.3 in.



Functional unit and cartridge descriptions for BSC

Purpose: The BCSU handles the functions of the BSC which are highlydependent on the amount of traffic. It controls the signalling and trafficon both A-interface and Abis-interface and provides access to the GPRScore network - optional feature.

Redundancy: n+1

Plug-in units: (CP4C32 (S9), CP4HX, CP4HL,)CP6LX, CP6MX

Central Processing Unit

(MBIF-T,) MBIF-UA Message Bus InterfaceAS7-U, AS7-US, AS7-V, AS7-VA,AS7-X

Preprocessor (CCS7/LAPD)

PSC3 Power Supply

PCUPCU-SPCU-TPCU2-U

Packet control unit

Interfaces: Message Bus InterfaceCCS7 signalling interfaceLAPD signalling interfaceGb interface

7.1.1 BSCE application

Standard configuration of BCSU

In the BSCE, the standard configuration of the BCSU is the following:

. one MC1C cartridge

. one processor with memory (CP4C32 (S9); CP4HX, CP4HL)

. two Message Bus Interfaces (MBIF-T

. three signalling terminals (AS7-U/-US)

. one Adapter for Frame Aligner (AFS-T)

. one power supply for the cartridge (PSC3).


Engineering for BSC

Figure 11. BCSU in the BSCE application

GPRS option with BCSU (S9)

The implementation of the GPRS option is possible in all BSCs when thefollowing prerequisites for the upgrade are met: the 3rd SW64 plug-in unitis in the GWSB units and the extra ET5C cartridges and ET2 plug-in unitsare in them.

The GPRS option consists of the PCU plug-in unit included in the BCSUunit. In the BSCE application, the configuration of the BCSU with theGPRS upgrade is shown in Figure BCSU in the BSCE application thePCU optional.

DN0173325

MBIF

MBIF

AS7

AS7

AFS

PSC3

::::::::::::::::::::::::::::::::::

CPU

::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::

CPU

00 03 04 05 06 08 100201 07 09




Figure 12. BCSU in the BSCE application PCU optional

PCU variants in releases S10 S11.5

. S10: PCU-S / PCU

. S10.5: PCU-T / PCU-S / PCU

. S11: PCU-T / PCU-S / PCU

. S11.5: PCU2-U / PCU-T / PCU-S / PCU

The new PCU variant in S11.5 release is Second Generation PacketControl Unit PCU2-U.

SMLC option (S10)

The MBIF-UA is required in all computer units (MCMU, BCSU, OMU).BCSU 128 MB (S11.5)

The memory requirement for BCSU is 128 MB in the S11.5 release.

DN00273563

MBIF

MBIF

AS7

AS7

AFS

PSC3

::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::

CPU

::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::

CPU

00 03 04 05 06 08 100201 07 09

PCU


Engineering for BSC

7.1.2 BSCi application

Standard configuration of BCSU

In the BSCi, the configuration of the BCSU is the following:


. one processor with memory (CP6LX)

. two Message Bus Interfaces (MBIF-UA)

. three signalling terminals (AS7-V)

. one Adapter for Frame Aligner (AFS-T)


Figure 13. BCSU in the BSCi application

Note

The AS7-V plug-in units support 16 CCS7 links and 64 LAPD channels.

DN00273548

::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::

MBIF

MBIF

AS7

AS7

PSC3

CPU

AS7

AFS

02 03 04 05 06 08 100100 07 09





In the BSCi application, the configuration of the BCSU with the GPRSoption (one PCU plug-in unit) is shown in figure BCSU in the BSCiapplication PCU optional.

Figure 14. BCSU in BSCi application PCU optional


. S10: PCU-S / PCU





BCSU 128 MB (S11.5)


DN00273575

MBIF

MBIF

AS7

AS7

AFS

PSC3

::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::

CPU

AS7

00 03 04 05 06 08 100201 07 09

PCU


Engineering for BSC

7.1.3 BSC2A/E

Standard delivery of BCSU (S9)

The configuration of the BCSU in BSC2A/E applications is the following:


. one processor with memory (CP4C32 (S9); CP4HX or CP4HL)

. two Message Bus Interfaces (MBIF-T)

. three Signalling Terminals (AS7-U or AS7-US; see notes)

. one Power Supply for the Cartridge (PSC3).

Figure 15. BCSU in BSC2A/E application

::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::

DN9834187

PSC3

CPU

MBIF

MBIF

AS7

AS7

AS7

02 03 04 05 06 08 100100 07 09




Note

Each BCSU can be equipped with three AS7 plug-in units. The AS7-USis compulsory in the ANSI environment (BSC2A) when the 7-bitsignalling system CCS7 is used in the A interface (towards MSC). In thedefault setting, the slot for the unit handling the CCS7 channels isdefined as F05. Slots F06 and F08 accept only AS7-U.

Note

The AS7-U and AS7-US plug-in units support 4 CCS7 links or 32 LAPDchannels.


In the BSC2A/E application, the configuration of the BCSU with the GPRSoption (one PCU plug-in unit) is shown in Figure BCSU in the BSC2A/Eapplications PCU optional.

Figure 16. BCSU in BSC2A/E applications PCU optional

02 03 04 05 06 08 100100 07 09

DN00273587

AS7

MBIF

MBIF

AS7

AS7

PSC3

CPU

PCU


Engineering for BSC

Second PCU for GPRS/EDGE option with BCSU (S10)

In the BSC2A/E application, the configuration of the BCSU with the GPRSupgrade is shown in Figure BCSU in the BSC2A/E applications thesecond PCU optional.

Figure 17. BCSU in BSC2A/E applications the second PCU optional

Table BSC2A/E application: allowed AS7 and PCU plug-in unitconfigurations presents the allowed AS7 and PCU plug-in unitconfigurations in BCSU with GPRS/EDGE use.

Table 12. BSC2A/E application: allowed AS7 and PCU plug-in unitconfigurations

Plug-inunit

Slot No

5 6 7 8 9

AS7-V(ETSI)

X

AS7-VA(ANSI)

X

DN0195039

MBIF

MBIF

PSC3

AS7

AS7

AS7

AS7

AS7

PCU

::::::::::::::::::::::::::::::::::

CPU

::::::::::::::::::::::::::::::::::

PCU

02 03 04 05 06 08 100100 07 09




Table 12. BSC2A/E application: allowed AS7 and PCU plug-in unitconfigurations (cont.)

Plug-inunit

Slot No

5 6 7 8 9

AS7-X X

AS7-U(ETSI)

X X

AS7-US(ANSI)

X X

PCU X X

PCU-S X X


. S10: PCU-S / PCU





SMLC option (S10)

The MBIF-UA is required in all computer units (MCMU, BCSU, OMU).BCSU 128 MB (S11.5)


7.1.4 BSC2i


The configuration of the BCSU in the BSC2i application is the following:


. one processor with memory (CP6LX)


Engineering for BSC


. three Signalling Terminals (AS7-V, AS7-VA; see note)


The configuration of the BCSU in BSC2i is the following:

Figure 18. BCSU in the BSC2i application

Note

Each BCSU can be equipped with three AS7 plug-in units. The slot F05accepts either an AS7-VA plug-in unit (ANSI version) or a AS7-V plug-inunit (ETSI version); the slots F06 and F07 accept only AS7-V plug-inunit.

Note

The AS7-V and AS7-VA plug-in units support 16 CCS7 links and 64LAPD channels.

DN00273551

::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::

MBIF

MBIF

AS7

AS7

PSC3CPU

AS7

02 03 04 05 06 08 100100 07 09





The configuration of the BCSU in the BSC2i is shown in Figure BCSU inBSC2i application PCU optional.

Figure 19. BCSU in BSC2i application PCU optional


The configuration of the BCSU in the BSC2i application is the following:


. one processor with memory (CP6MX)


. three Signalling Terminals (AS7-X)


MBIF

MBIF

CPU

00 03 04 05 06 08 100201 07 09

DN00273599

AS7

AS7

AS7

PSC3

PCU


Engineering for BSC

Figure 20. BCSU in BSC2i application

Second PCU for GPRS/EDGE option with BCSU (S10)

The configuration of the BCSU in the BSC2i is shown in Figure BCSU inthe BSC2i application the second PCU optional.

DN00273551

::::::::::::::::::::::::::::::::::

::::::::::::::::::::::::::::::::::

MBIF

MBIF

AS7

AS7

PSC3CPU

AS7

02 03 04 05 06 08 100100 07 09




Figure 21. BCSU in BSC2i application second PCU optional

Table BS2Ci application: allowed AS7 and PCU plug-in unit configurationspresents the allowed AS7 and PCU plug-in unit configurations in BCSUwith GPRS/EDGE use.

Table 13. BS2Ci application: allowed AS7 and PCU plug-in unit configurations

Plug-inunit

Slot No

5 6 7 8 9

AS7-V(ETSI)

X X X

AS7-VA(ANSI)

X X X

AS7-X *) X X XAS7-U(ETSI)

X

AS7-US(ANSI)

X

DN0195027

MBIF

MBIF

PSC3

AS7

AS7

AS7

:::::::::::::::::::::::::::::

:::::::::::::::::::::::::::::

CPU

AS7

AS7

PCU

PCU

02 03 04 05 06 08 100100 07 09


Engineering for BSC

Table 13. BS2Ci application: allowed AS7 and PCU plug-in unit configurations(cont.)

Plug-inunit

Slot No

5 6 7 8 9

PCU X X

PCU-S X X

*) First deliveriesFirst delivery (S10.5/S11)

In S10.5/S11 first delivery, the AS7-X plug-in unit is standard and the PCU-T plug-in unit replaces the PCU plug-in units delivered with the earlierGPRS/EDGE options (S9, S10). See Figure BCSU in BSC2i applicationwith AS7Xs and PCU-Ts.

Figure 22. BCSU in BSC2i application with AS7Xs and PCU-Ts

DN0251467

00 0201 03 04 05 06 07 08 09 10

MBIF

MBIF

AS7

AS7

AS7 PSC3

CP6MX

PCU

PCU





. S10: PCU-S / PCU





BCSU 128 MB (S11.5)


7.2 CLS, Clock and Synchronisation Unit

Purpose: The CLS generates the clock signals necessary for the BSC. Theoscillator of the CLS is normally synchronised to an external source,usually an MSC, through a PCM line. Up to two additional PCMinputs are provided for redundancy.

Redundancy: 2n

Plug-in units: CL1TG Clock and Tone Generator (for BCBE rack)CL3TG Clock and Tone Generator (for BCBE rack)CLAB Clock and Alarm Buffer (for BCEE extension rack)

Interfaces: Synchronisation input from Transcoder (for three PCMs) externalsynchronisation inputWired alarm interface

Lb interface

The basic equipment of the CLS consist of two Clock and Tone Generatorplug-in units (CL1TG or CL3TG) housed in the CLOC cartridge (CLOC, asshown in figures CLOC cartridge housing CL1TG plug-in units and CLOCcartridge housing CL3TG plug-in units). The CLOC cartridge is installedinto the BCBE rack.

The dimensions of CLOC and CLAC cartridges are (height x width xdepth):

262 mm x 120 mm x 300 mm; or 10.3 in x 4.72 in x 11.5 in.


Engineering for BSC

The dimensions of the CL1TG, CL3TG and CLAB plug-in units are (heightx depth): 233.4 mm x 220 mm; or 9.19 in x 8.66 in.

Figure 23. CLOC cartridge housing CL1TG and CL3TG plug-in units

The equipment in the BCEE extension rack, if used, are synchronized tothe BCBE rack equipment by means of two Clock and Alarm Buffer(CLAB) plug-in units housed in a Clock and Alarm cartridge (CLAC; seeFigure CLAC cartridge housing CLAB plug-in units. The CLAB unitsreceive the clock signal from the CLOC cartridge of the BCBE rack andtransmit it on to the BCEE rack equipment.

In addition to the synchronization functions, the CLAB plug-in units alsocollect the wired alarms from the BCEE rack and transmit them on to theOMU.

DN9834199

CLxTG

CLxTG

0 05040201 0300




Figure 24. CLAC cartridge housing CLAB plug-in units

7.3 ET, Exchange Terminal

Purpose: The ET performs the electrical synchronisation and adaptation ofexternal PCM lines. It performs the AMI or B8ZS (ET2A), or HDB3(other ET2 plug-in units) coding and decoding, inserts the alarm bitsin the outgoing direction and produces PCM frame structure. All ET2plug-in units contain two separate ETs but the ET1E plug-in units ofthe first generation BSC contain only one ET.

Redundancy: None

Plug-in units: ET1E Exchange Terminal

ET1E-C Exchange Terminal

ET2A Exchange Terminal

ET2A-T Exchange Terminal

ET2E Exchange Terminal

ET2E-C Exchange Terminal

ET2E-S Exchange Terminal

ET2E-SC Exchange Terminal

DN9834206

05040201 0300

CLAB

CLAB


Engineering for BSC

ET2E-T Exchange Terminal

ET2E-TC Exchange Terminal

Interfaces: PCM Interface to T1/E1 trunksSynchronization interface to the CLOC cartridge

The Exchange Terminal plug-in units (ET1) of the BSCi/BSCE are housedin an ET1C cartridge. The maximum configuration is up to eight ET1 plug-in units.

The dimensions of a ET1C cartridge are (height x width x depth): 262 mmx 240 mm x 240 mm; or 10.3 in x 9.45 in x 9.45 in.


The Exchange Terminal plug-in units (ET2) of the BSC2, BSC2i and BSCiare housed in an ET5C cartridge (see Figures ET1C cartridge for BSCiand ET5C cartridge for BSCi). The maximum configuration is up to eightET2 plug-in units in a cartridge.

The dimensions of a ET5C cartridge are (height x width x depth): 262 mmx 120 mm x 300 mm; or 10.3 in x 4.72 in x 11.5 in

The dimensions of the ET2 plug-in units are (height x depth): 100 mm x220 mm; or 3.94 x 8.66 in.

ET in the BSCi application

The BSCi application houses seven ET1C cartridges. These cartridgeshouse Exchange Terminal plug-in units (ET1E). The BCBE rack containstwo ET1C cartridges and the BCEE rack five ET1C cartridges. Each ET1Ccartridge contains eight ET1E plug-in units and two PSC3 plug-in units(see Figure ET1C cartridge for BSCi.)




Figure 25. ET1C cartridge for BSCi

As an option, the BSCi application can also contain two ET5C cartridges:one in the BCBE rack and the other in the BCEE rack (see Figure ET5Ccartridge for BSCi.)

DN9834506

PSC3

PSC3

ET1E

ET1E

ET1E

ET1E

ET1E

ET1E

ET1E

ET1E

00 01 02 03 04 06 080705 09


Engineering for BSC

Figure 26. ET5C cartridge for BSCi

ET in the BSC2A application and BSC2i application, ANSI version

The BCBE rack of the BSC2A can contain up to two ET5C cartridges andthe BCEE rack up to three ET5C cartridges. The BCBE rack of the BSC2ican contain up to two ET5C cartridges and the BCEE rack up to sevenET5C cartridges. See Figures ET5C cartridge for BSC2A and BSC2i,ANSI version and ET5C cartridge for BSC2E and BS2Ci, ETSI version.

Note

The ET2 plug-in units are installed in the order presented in theEquipment List in the Site documents.

DN99576254

4 x ET2E 0 1 2 3

4 5 6 74 x ET2E

Euroconnector SMB connector




Figure 27. ET5C cartridge for BSC2A and BSC2i, ANSI version

ET in the BSC2E application and BSC2i application, ETSI version

In the BSC2i application, the BCBE rack can contain up to two ET5Ccartridges (see Figure ET5C cartridge for BSC2E and BS2Ci, ETSIversion) and the BCEE rack up five (S9) or up to seven (S10) ET5Ccartridges.

DN9834284

4 x ET2A

4 x ET2A

0 1 2 3

4 5 6 7


Engineering for BSC

Figure 28. ET5C cartridge for BSC2E and BS2Ci, ETSI version

7.4 GSWB, Group Switch

Purpose: The Group Switch (GSWB) conveys the traffic passing through theBSC and switches the tones to the subscribers of the exchange andto the trunk circuits. The GSWB also establishes the neededconnections to the signalling units and the internal data transmissionchannels, and is responsible for the submultiplexing functions of theBSC2. The operation of the GSWB is controlled and supervised bythe Marker and Cellular Management Unit (MCMU; SWCOP-S).

Redundancy: 2n

Plug-in units: SW64B 8 kbit/s Switching Unit

PSC1 or PSC1-S Power Supply

SWBUS2 Bus extender (for two SW64 plug-in units)SWBUS3 Bus extender (for three SW64 plug-in units)SWBUS4 Bus extender (for four SW64 plug-in units)

DN99576254

4 x ET2E 0 1 2 3

4 5 6 74 x ET2E

Euroconnector SMB connector




Interfaces: LAPD (towards the OMU and BCSU)Control interfaces from the MCMU,4 Mbit/s towards the ET

The equipment of the GSWB functional unit is housed in an SW1Ccartridge. The basic configuration of a GSWB is:

. 8 kbit/s Switching units (SW64B): two (S9: BSCE, BSCi, BSC2A/E),three (S9: BSC2i; optional in BSCi and BSC2 upgrade to BSC2i) orfour (from S10 onwards: optional in all applications if the secondPCU for GPRS/EDGE option is chosen)

. one power supply for the cartridge (PSC1 or PSC1-S).

See also Figures 29 SW1C cartridge for GSWB functional unit in thedeliveries which do not include the optional GPRS functionality, 30 SW1Ccartridge for GSWB functional unit in the deliveries which include theoptional GPRS functionality and 31 SW1C cartridge for GSWB functionalunit in the deliveries which include the optional GPRS/EDGE functionality.

In the BSC2A/E application, the basic configuration has a capacity of 128internal 2 Mbit/s PCM lines, sufficient to handle the external PCM lines ofup to 80 Exchange Terminals (ETs). In the BSC2i application and BSC2A/E to BSC2i upgrade, however, the capacity is 192 internal 2 Mbit/s PCMlines, sufficient to handle up to 112 ETs.

The dimensions of an SW1C cartridge are (height x width x depth): 262mm x 180 mm x 300 mm; or 10.3 in x 7.1 in x 11.5 in.



Engineering for BSC

Figure 29. SW1C cartridge for GSWB functional unit in the deliveries which donot include the optional GPRS functionality.

DN9834245

SW64B

SW64B

PSC1

02 03 04 05 060100 07




Figure 30. SW1C cartridge for GSWB functional unit in the deliveries whichinclude the optional GPRS functionality.

DN00273657

PSC1

SW64B

SW64B

SW64B

02 03 04 05 060100 07


Engineering for BSC

Figure 31. SW1C cartridge for GSWB functional unit in the deliveries whichinclude the optional GPRS/EDGE functionality.

7.5 MCMU, Marker and Cellular Management Unit

Purpose: The MCMU controls and supervises the GSWB and performs thehunting, connecting and releasing of the switching network circuits.The range of the tasks it handles makes up a combination ofgeneral marker functions and radio resource management functions.

The MCMU is connected to the other computer units of theexchange, OMU and BCSU, through the message bus.

Redundancy: 2n

Plug-in units: CP4HX, CP4HL, CP6LX;CP6MX

Central Processing Unit

(MBIF-T,) MBIF-UA Message Bus InterfaceSWCOP-S Switching Control Processor

PSC3 Power Supply

DN0195042

SW64B

SW64B

PSC1

SW64B

02 03 04 05 060100 07

SW64B




Interfaces: Message BusControl interface towards the switching networkWired alarm interface with the Operation and Maintenance Unit

The dimensions of the MC1C cartridge are (height x width x depth): 262mm x 240 mm x 240 mm; or 10.3 in x 9.45 in x 9.45 in.


7.5.1 MCMU in BSC2A/E applications (S9)

Standard configuration

The MCMU equipment is housed in an MC1C cartridge. The basicconfiguration of the MCMU is (see the figure Implementation of the MCMUin BSC2A/E):. one MC1C cartridge. one processor with memory (CP4HX or CP4HL). two Message Bus Interfaces (MBIF-T). one Switch Control Processor (SWCOP-S). one Power Supply for the Cartridge (PSC3).


Engineering for BSC

Figure 32. Implementation of the MCMU in BSC2A/E

SMLC option (from S10 onwards)

The SMLC option requires a new CPU, for example, the CP6MX, and theMBIF-UA.

MCMU 256 MB (S11.5)

In S11.5 release the minimum memory capacity requirement for MCMU is256 MB.

7.5.2 MCMU in BSCi and BSC2i applications

Standard configuration (from S9 onwards)

The MCMU equipment is housed in a MC1C cartridge. The basicconfiguration of the MCMU is (see the figure Implementation of the MCMUin BSCi and BSC2i):. one MC1C cartridge. one processor with memory (CP6LX)

DN0273618

00 0201 03 04 05 06 07 08 09 10

CPU

MBIF

MBIF

PSC3

SWCOP




. two Message Bus interfaces (MBIF-UA)

. one Switch Control Processor (SWCOP-S)

. one Power Supply for the Cartridge (PSC3).

Figure 33. Implementation of the MCMU in BSCi and BSC2i

SMLC option (from S10 onwards)

The SMLC option requires a new CPU, that is, the CP6MX.

First delivery (S10.5)

S10.5 first deliveries include BSC2is only. The implementation of MCMU inthe S10.5 deliveries is presented in Figure MCMU with redundant LANconnections from the CP6MX.

DN00273606

00 0201 03 04 05 06 07 08 09 10

MBIF

MBIF

PSC3CPU

SWCOP


Engineering for BSC

Figure 34. Implementation of the MCMU in BSC2i

MCMU 256 MB (S11.5)

In S11.5 release the minimum memory capacity requirement for MCMU is256 MB.

7.6 OMU, Operation and Maintenance Unit

7.6.1 OMU in BSC2A/E applications

Purpose: The OMU acts as an interface between the user and the BSC2

Engineering for BSC

Documents

nokiasiemens networks

bsc andtcsm

product documentation

s10 release

whichthe document

bsc rack descriptions

bsc upgrade options

s9 release