Evolium Transcoder Hardware Description

7/29/2019 Evolium Transcoder Hardware Description

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Alcatel-Lucent GSM

G2 Transcoder Hardware

Description

BSC & TC Document

Sub-System Description

Release B10

3BK 21245 AAAA TQZZA Ed.04


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Status RELEASED

Short title TC Hardware Descr.

All rights reserved. Passing on and copying of this document, useand communication of its contents not permitted without writtenauthorization from Alcatel-Lucent.

BLANK PAGE BREAK

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Contents

Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1 Cabinets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141.2 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.2.1 Cabinet Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.2.2 Rack Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.2.3 TRU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.2.4 Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.2.5 Rack-top Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.2.6 Ventilation Grid Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.2.7 End Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.2.8 Cabinet Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.2.9 Minimum Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191.2.10 Extension Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201.2.11 Extension with MT120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1.3 Electrical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221.3.1 Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221.3.2 Power Supply and Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2 Subracks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.1 Subracks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262.1.1 Subrack Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262.1.2 Cooling of Subracks with ASMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262.1.3 Cooling of Subracks with MT120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262.1.4 Backpanel Assembly Fixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262.1.5 Subrack Fixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.2 Backpanel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272.3 Printed Board Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.3.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.3.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3 ASMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303.2 Onboard Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313.3 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.3.1 Ater Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323.3.2 Ater-mux Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333.3.3 Local Qmux Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343.3.4 Local Qmux Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343.3.5 Remote Qmux Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343.3.6 Qmux Extension Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.3.7 Qmux Address Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343.3.8 Man-Machine Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.4 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353.4.1 Sub-rate Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353.4.2 Time Space Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3.5 TS0 Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.6 Serial Communication Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.7 Clock Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.8 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.9 Remote Inventory EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403.10 Control and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.10.1 Onboard Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.10.2 TS0 Logic Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423.10.3 SCC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

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3.10.4 TSSW Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433.10.5 SRS Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

3.11 Watchdog Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433.12 Long Range Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443.13 DC/DC Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443.14 O&M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.14.1 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443.14.2 Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

3.15 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453.15.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453.15.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453.15.3 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

4 ATBX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484.2 Onboard Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494.3 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4.3.1 Ater Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494.3.2 A Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4.3.3 Local Qmux Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504.3.4 Qmux Address Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504.3.5 Man-Machine Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504.3.6 64 kbit/s Data Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504.3.7 TP16 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

4.4 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514.4.1 Sub-rate Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524.4.2 Time Space Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

4.5 Serial Communication Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534.6 Clock Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534.7 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544.8 Remote Inventory EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

4.9 Control and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544.9.1 Onboard Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544.9.2 SCC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 574.9.3 TSSW Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 574.9.4 SRS Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

4.10 Watchdog Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 584.11 Long Range Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 584.12 DC/DC Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 584.13 O&M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58


4.14 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594.14.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

4.14.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594.14.3 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

5 TP16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625.2 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

5.2.1 2 Mbit/s Links A and B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635.2.2 Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635.2.3 BDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635.2.4 MMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635.2.5 JTAG/OnCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 645.2.6 Trace/Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 645.2.7 RS-485 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

5.3 Transcoder Control Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

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5.4 Signaling Processor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655.5 Synchronization, Interrupt and Clock Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655.6 Power Supply Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655.7 O&M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66


5.8 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665.8.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665.8.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 665.8.3 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

6 MT120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

6.1 Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 706.2 O&M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 716.3 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

6.3.1 Board Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 716.3.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 716.3.3 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 726.3.4 Font Panel Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

7 JBFAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 747.2 Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

8 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

8.1 Cable Sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 768.1.1 Cable Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 768.1.2 Cables with 211 and 214 Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 778.1.3 Cables with 3BK Identifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

8.2 Multi-Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 798.3 Internal Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

8.3.1 Cable 211 27935 AXXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

8.3.2 Cable 211 27975 AARA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 808.3.3 Cable 211 27978 AAXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 808.3.4 Cable 211 03161 XXKA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 808.3.5 Shorting Bridge 211 03875 AAAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 818.3.6 Plug 3BK 07269 AXXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 828.3.7 Cable 3BK 07320 XXXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 838.3.8 Cable 3BK 07323 XXAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 838.3.9 Cable 3BK 07563 ARAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 848.3.10 Cable 3BK 07834 ANAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 848.3.11 Cable 3BK 07836 ANAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 848.3.12 Cable 3BK 07837 APAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 858.3.13 Cable 3BK 07838 ANAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 858.3.14 Cable 3BK 07839 ARAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

8.3.15 Cable 3BK 07843 ALAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 858.3.16 Cable 3BK 07844 APAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

8.4 External Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 868.4.1 Cable 3BK 07321 JAAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 868.4.2 Cable 3BK 07322 JAAX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 878.4.3 Cable 3BK 07744 XXAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 888.4.4 Cable 3BK 07834 ANAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 918.4.5 Multi-Cable 3BK 08759 XXAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 918.4.6 Multi-Cable 3BK 08760 XXAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 928.4.7 Multi-Cable 3BK 08761 XXAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 938.4.8 Multi-Cable 3BK 08762 XXAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

8.5 Front Panel Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

9 Wiring on Alcatel-Lucent DDF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

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9.1 PCM Wiring - 75 Ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 989.2 PCM Wiring - 120 Ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1019.3 Block Diagram for External Cables - 75 Ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1049.4 Block Diagram for External Cables - 120 Ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

10 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

10.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10810.2 Temperature and Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10810.3 Atmospheric Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10810.4 Solar Radiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10810.5 Dust and/or Sand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10910.6 Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10910.7 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

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Figures

Figure 1: Fully Equipped Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 2: Example of a G2 TC Equipped with MT120s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 3: 3-Wire Power Connection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 4: 2-Wire Power Connection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 5: TRCB16 BPA Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 6: Simplified Hardware Architecture of the ASMC PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Figure 7: Ater Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 8: Clock Synchronization Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Figure 9: TS0 Logic - Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Figure 10: ASMC Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Figure 11: Simplified Hardware Architecture of the ATBX PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Figure 12: Switch Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51Figure 13: Clock Synchronization Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Figure 14: ATBX Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Figure 15: Simplified Hardware Architecture of the TP16 PBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 16: TP16 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Figure 17: MT120 Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Figure 18: MT120 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 19: Cable 211 27935 AXXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Figure 20: Cable 211 27975 AARA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Figure 21: Cable 211 27978 AAXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Figure 22: Cable 211 03161 XXKA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Figure 23: Shorting Bridge 211 03875 AAAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Figure 24: Plug 3BK 07269 AXXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Figure 25: Cable 3BK 07320 XXXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Figure 26: Cable 3BK 07323 XXAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Figure 27: Cable 3BK 07563 ARAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Figure 28: Cable 3BK 07834 ANAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84


Figure 30: Cable 3BK 07837 APAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85


Figure 32: Cable 3BK 07839 ARAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 33: Cable 3BK 07843 ALAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 34: Cable 3BK 07844 APAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Figure 35: Cable 3BK 07321 JAAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Figure 36: Cable 3BK 07321 JAAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Figure 37: Cable 3BK 07322 JAAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Figure 38: Cable 3BK 07322 JAAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87


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Figures






Figure 45: Cable 3BK 07948 GLAA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Figure 46: PCM Wiring (RX or TX) for 75 Ohms on 1st DDF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Figure 47: PCM Wiring (RX or TX) for 75 Ohms on 2nd DDF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Figure 48: PCM Wiring (RX or TX) for 75 Ohms on 3rd DDF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Figure 49: PCM Wiring (RX or TX) for 120 Ohms on 1st DDF - Part 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Figure 50: PCM Wiring (RX or TX) for 120 Ohms on 1st DDF - Part 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Figure 51: PCM Wiring (RX or TX) for 120 Ohms on 2nd DDF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Figure 52: Block Diagram for External Cables (RX and TX) - 75 Ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104Figure 53: Block Diagram for External Cables (RX and TX) - 120 Ohms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

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Tables

Tables

Table 1: Minimum System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table 2: Extension Sequence - Cabinet Level - Configuration B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Table 3: PBA Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Table 4: TSO Logic - Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 5: Clock Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 6: ASMC Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table 7: GPR Bits (ASMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Table 8: RINVR Bits (ASMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 9: QAR Bits (ASMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Table 10: MBR Bits (ASMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Table 11: ASMC LED Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Table 12: Clock Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Table 13: ATBX Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Table 14: GPR Bits (ATBX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Table 15: RINVR Bits (ATBX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table 16: QAR Bits (ATBX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table 17: MBR Bits (ATBX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Table 18: ATBX LED Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Table 19: TP16 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Table 20: MT120 LEDs in Operational State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Table 21: MT120 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Table 22: MT120 Front Panel Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Table 23: Cable Code Suffix Designations (No Multiplier) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Table 24: Cable Code Suffix Designations (With Multiplier) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Table 25: X.25 ATBX PBA Connector Pin Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Table 26: X.25 Switch Connector Pin Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Table 27: RS-232 Connector Pin Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Table 28: Dust and/or Sand Particles and Concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

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Preface

Preface

Purpose This document describes the hardware of the Generation Two Transcoder(G2 TC).

The Alcatel-Lucent Radio Solutions includes the G2 TC described in thisdocument.

Whats New In Edition 04

Update with the new equipment naming.

In Edition 03

Overall document quality was improved following a quality review.

In Edition 02

Update of system title.

In Edition 01

First official release of document.

Audience This document is intended for:

Commissioning personnel

System support engineers

Any other personnel interested in the structure of the TC hardware.

This document is also intended to be used for training purposes.

Assumed Knowledge The reader must have general knowledge of telecommunications systems andterminology, electronics and the TC functions.

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1 Cabinets

1 Cabinets

This section provides an introduction to the cabinets of the TC, including:

Introduction

Physical Description

Electrical Description.

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1 Cabinets

1.1 Introduction

The G2 TC is part of the Base Station Subsystem (BSS) for the Global Systemfor Mobile Communications. It connects the BSS to the Mobile-servicesSwitching Center (MSC).

The G2 TC can be composed of one, two or three cabinets. A cabinetcomprises a rack with front and rear doors. A single cabinet also has two endpanels. Each cabinet is the same, although the quantities of the equipment ineach cabinet can be different. The number of cabinets depends on the Atercapability of the BSC to which the TC is connected. In general, there is aone-to-one relationship between the number of BSC cabinets and the numberof TC cabinets. However, the number of BSC cabinets and TC cabinets can bedifferent. For example, if more Abis Interfaces are required in the BSC, it canhave more cabinets than the TC.

If the TC is used with the G1 BSC, the one-to-one relationship does not apply.

Where two or three cabinets are used, they are bolted together to form a suite.The cabinet at each end of a suite has a suite-end panel. The cabinets are

designed for buildings with a minimum ceiling height of 2.7 meters.

A cabinet has a single four-tier subrack. The subrack holds BackpanelAssemblies (PBAs). The PBAs plug into a single type of Backpanel Assemblyfitted to the subrack.

The following types of PBA are used:

ASMC or MT120

ATBX

Dual Rate Transcoder (16 Channel).

The rack frame is transported fully equipped and pre-tested. Doors, end panels,etc., are transported separately and fitted onsite.

When required, a TC can be extended by the addition of:

PBAs to empty, or partly empty, subracks

An extra cabinet (with external cabling), and associated hardware/software

modules.

The DT16 PBA is based on the TP16 PBA. The TP16 provides a commonhardware platform. The functions it performs depends on the firmware withwhich the PBA is loaded.

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1 Cabinets

1.2 Physical Description

A cabinet consists of the following main parts:

A rigid rack frame of welded steel

A four-tier subrack

A Top Rack Unit

Four doors, two at the front and two at the rear

Two rack-top covers, front and rear

A ventilation grid cover

Two end panels.

1.2.1 Cabinet Dimensions

When complete with side panels, the cabinet is 2100 mm high, 1000 mm wideand 520 mm deep.

1.2.2 Rack Frame

The rack frame (2100 mm high, 900 mm wide, and 520 mm deep) is made frombox-section steel. The frame holds a single subrack (with four PBA shelves) andthe TRU. Spaces between the PBA shelves enhances the convection cooling.The subrack and TRU are fixed to the rack frame uprights from the front.

To aid lifting during installation, removable eye bolts are fitted to the top of theframe. If the floor is uneven, optional levelling plates with adjustable screws aremounted at the bottom of the frame. The uprights of the rack frame provide an

unrestricted horizontal cable run at the rear of a rack.

Note: The levelling plates and associated screws are a customer option.

1.2.3 TRU

The TRU is a shallow aluminium plate chassis. It is mounted directly above thetop PBA shelf and fitted to the rack frame uprights.

The TRU contains the following rack services:

Filters

Power distribution connectors

Circuit breakers.

Terminal blocks are fitted to the TRU in a configuration that complies withGerman standard Deutsche Industrie Norm. Connections to the terminal blocksare made by faston connectors. These are used for all the connectionswithin the cabinet.

All power supply, grounding, and signaling inputs and outputs are identifiedand numbered. Signaling input and output connectors are provided at therear of the TRU.

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1 Cabinets

1.2.4 Doors

Four steel doors, two front and two rear, allow access to the inside of thecabinet. The doors are made of steel which is partially perforated over the doorrecess areas. For safety reasons, the front doors are fitted with locks.

The doors are mounted on pivot latches at the top and bottom frames of therack. They are held closed by magnetic latches mounted in the top and bottomparts of the rack frame. Each door can pivot through 180 degrees. The doorscan be removed by disengaging the top pivot latches and lifting them clear.

1.2.5 Rack-top Covers

A front rack-top cover and rear rack-top cover are fitted to the top of the rackframe. The front rack-top cover carries the Alcatel-Lucent logo and name.It also carries the cabinet identity.

1.2.6 Ventilation Grid Cover

A perforated grid cover is fitted to the rack frame top. It has a cut-out for thefilter assembly. The grid cover permits adequate ventilation, while maintainingthe integrity of the Electromagnetic Compatibility cage.

1.2.7 End Panels

Suites are formed by bolting cabinets together side by side to provide a rigidstructure. The sides of a suite of cabinets, or a cabinet standing alone, arefitted with end panels. These are constructed from steel and can be easilyremoved to allow extensions

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1 Cabinets

1.2.8 Cabinet Layout

The following figure shows the maximum configuration of a cabinet.

The minimum system which can be installed and the extension steps aredescribed in this Section.

The legend used in the figure is:

BPA = Backpanel Assembly

MEQ = Minimum Equipment

POS = Position

MOD = Module

n (n=1 to 6) Ater Submultiplexer number

na, nb, nc, nd (n=1 to 6) Transcoder unit number

TRU = Top Rack Unit.

Transcoder units designated nd, e.g., 1d are for 1:4 mapping.

Each TC rack is supplied complete with cables. This means that extensionsdo not involve changing or adding internal cables, with the exception ofremoving loopback plugs where necessary. External cables, e.g., Ater-mux andA-interface cables must be added.

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1 Cabinets

Extensions involve only the insertion of ASMC and/or Transcoder Unit (ATBX +2 x DT16) PBAs or MT120. These are inserted in the PBA slots indicated inthe following figure.

01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63

Front View

ASMC

DT16

DT16

ATBX

DT16

DT16

ATBX

DT16

DT16

ATBX

6 6a 6b 6c 4d 5d 6d

4 4a 4b 4c 5 5a 5b 5c

3 3a 3b 3c 1d 2d 3d

1 1a 1b 1c 2 2a 2b 2c

MEQ for first cabinet =

MEQ for second and third cabinets =

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9

1 2

1 2

DT16

DT16

ATBX

DT16

DT16

ATBX

DT16

DT16

ATBX

ASMC

DT16

DT16

ATBX

DT16

DT16

ATBX

DT16

DT16

ATBX

ASMC

DT16

DT16

ATBX

DT16

DT16

ATBX

DT16

DT16

ATBX

ASMC

DT16

DT16

ATBX

DT16

DT16

ATBX

DT16

DT16

ATBX

DT16

DT16

ATBX

DT16

DT16

ATBX

DT16

DT16

ATBX

AS

MC

DT

16

DT

16

AT

BX

DT

16

DT

16

AT

BX

DT

16

DT

16

AT

BX

AS

MC

DT

16

DT

16

AT

BX

DT

16

DT

16

AT

BX

DT

16

DT

16

AT

BX

05

PO

S

04

03

02

01

01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63

01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63

01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63

TRU B16A00 3BK 06872 ABXX

Empty

BPA TRCB16 TRCB163BK 07346 AAAA 07346 AAAAMEQ

POS

MOD

Empty

Empty

Empty


POS

MOD


POS

MOD


POS

MOD

Figure 1: Fully Equipped Cabinet

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1 Cabinets

1.2.9 Minimum Configurations

The following table shows the minimum system configurations forConfiguration B.

Minimum System Number of ASMCs Number of TRCUs Number of A Interfaces

Configuration B (1:4) 2 8 8

Additional Rack 1 4 4

Table 1: Minimum System Configurations

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1 Cabinets

1.2.10 Extension Steps

The Minimum Extension Step for the G2 TC is 4 TRCUs (Configuration B). TheExtension Sequence is fixed as shown in Table 3 (Configuration B). The tableshows the extension sequence at the Cabinet Level. Each installation startswith a minimum system as defined above and extensions start at Step 1. Each

additional cabinet starts with the Minimum System, as previously explained.

Extension Steps 1:4 Configuration ASMC TRCU

First Cabinet Extension Cabinet

Minimum Equipment Minimum Equipment 1 1a

- - - 1b

- - - 1c

- - - 1d

- 1 2 2a

- - - 2b

- - - 2c

- - - 2d

1 2 3 3a

- - - 3b

- - - 3c

- - - 3d

2 3 4 4a

- - - 4b

- - - 4c

- - - 4d

3 4 5 5a

- - - 5b

- - - 5c

- - 5d

4 5 6 6a

- - - 6b

- - - 6c

- - - 6d

Table 2: Extension Sequence - Cabinet Level - Configuration B

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1 Cabinets

1.2.11 Extension with MT120

When the MT120 board is used to extend a G2 transcoder, the board is insertedin one of the free AMSC slots. The associated JBFAN board is inserted in thefirst ATBX slot next to the MT120.

Figure 2: Example of a G2 TC Equipped with MT120s

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1 Cabinets

1.3 Electrical Description

This section describes the electrical arrangements for TC installations.

1.3.1 Power Requirements

The TC equipment operates from a 48V or 60V nominal supply. This supplyfeeds the individual DC/DC Converter on each PBA. The DC/DC Convertergenerates the lower voltage supplies, e.g., + 5V required by the PBA.

1.3.2 Power Supply and Grounding

The power supply can be connected to a TC by either a 3-wire or 2-wire system.

Power is applied to the cabinets by switches (fuses) in the TRU. The 48V or60V supply is duplicated. This means that there are two switches for eachbackpanel (one for branch A and one for branch B).

1.3.2.1 3-Wire System

The battery connections and the battery return, enter the cabinet via threepower filters (see the following figure). These filters isolate the battery supplyfrom the metalwork of the cabinet.

Battery A

Battery B

DC/DCConverter

on PBA

Filter

Cabinet

BPA

PE

Battery Return

Figure 3: 3-Wire Power Connection System

The battery connections (via fuses) and the battery return, are routed viadistribution bars to the DC/DC Converters. There is no connection between theElectronic Ground connection (of the DC/DC Converter) and the battery return.

All the EG connections of all the BPAs in a cabinet are interconnected.

This ensures a good equipotential plane. Two vertical bus-bars and directconnections between BPAs make the interconnections. All these connectionsare made by short straps. The EG-plane formed by these connections isconnected in the TRU to the Protective Earth wire.

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1 Cabinets

1.3.2.2 2-Wire System

The battery connections enter the cabinet via two power filters These filtersisolate the battery supply from the metalwork of the cabinet.

In the TRU, the Functional and Protective Earth is connected direct to themetalwork.

At the BPAs, the FPE and the EG of the DC/DC Converters (on the PBAs)are connected together. Extra connections are provided between the EGconnections of the BPAs and the cabinet metalwork (vertical bus bars). Theseensure there is a good equipotential plane. In addition, direct connections aremade between the EG connections of adjacent BPAs. These connectionsare made by short straps.

Filter

Battery A

FPECabinet

BPADC/DCConverteron PBA

EG connections

Battery B

Figure 4: 2-Wire Power Connection System

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1 Cabinets

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2 Subracks

2 Subracks

This section describes the subracks of the TC Cabinets.

This section describes the subracks of the TC Cabinets, including the:

Subrack

Backpanel Assembly

Printed Board Assemblies.

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2 Subracks

2.1 Subracks

This section describes the subracks, including:

Subrack Structure

Cooling

Backpanel Assembly Fixing

Subrack Fixing.

2.1.1 Subrack Structure

The four-tier subrack is 874mm wide, 274mm deep, and 1605 mm high. Thesubrack comprises two aluminium side plates and eight aluminium horizontalrails. These are joined together to form a four-tier box frame. Metal guide matsare fitted at the top and the bottom of each tier of the subrack. These provideguidance and support for up to 4 x 32 PBAs.

2.1.2 Cooling of Subracks with ASMC

Ventilation slots in the guide mats, allow air to flow between the PBAs. Airalso flows in the space at the front and back of the subrack. This ensuressufficient cooling throughout the subracks. The PBA positions in all subracksare standardized at a spacing of 25.4 mm. All the PBAs are vertically aligned ina cabinet. This alignment gives clear passages through which air passes tocool the components on the PBAs.

Open spaces between the PBA shelves also assist cooling. The space betweenthe top two PBA shelves is larger to ensure that the top shelf does not overheat.

2.1.3 Cooling of Subracks with MT120

When the MT120 is used in the G2 transcoder rack, forced air cooling isneeded. A JBFAN board is inserted in the subrack, next to the MT120 board.

2.1.4 Backpanel Assembly Fixing

Threaded strips slid into the subrack rear horizontal rails fix the backpanelassembly in position.

2.1.5 Subrack Fixing

The subrack is fixed to the rack frame uprights by 12 screws and a flange oneach side of the unit. These allow a fully assembled and equipped subrack tobe transported in its rack frame without damage.

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2 Subracks

2.2 Backpanel Assembly

This section describes the BPA used in the TC.

Each subrack has two identical BPAs (TRCB16). A BPA has connectors toaccept female edge-connectors at the front, and cable connectors at the rear.

The following figure shows the layout of the TRCB16 BPA. The vertical linesand numbers shown at the top of the BPA identify the PBA slots.

AT

BX

01 03 05 07 09 11 13 15 17 19 21 23 25 27 29 31

DT

16

AS

MC

DT

16

DT

16

AT

BX

DT

16

DT

16

AT

BX

DT

16

Figure 5: TRCB16 BPA Layout

MT120 and JBFAN

When the MT120 and JBFAN are used, the MT120 is inserted in the free ASMCslot 01 and the JBFAN in the free ATBX slot 07. The other slots are not used.

2.3 Printed Board Assemblies

This section describes information which is common to all the PBAs.

Both two-layer and multilayer boards are used, each being 1.6 mm thick. ThePBAs are made from epoxy resin reinforced by fiberglass.

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2 Subracks

2.3.1 Dimensions

The following table gives the physical dimensions of the PBAs.

Dimensions Size (Units) Size (mm)

Height 6U 233

Width - 26

Depth - 280

Table 3: PBA Dimensions

Each PBA is fitted with an end stiffener board retainer. These also serve as anidentification label carrier. Light Emitting Diodes, connectors and push-buttonsare normally mounted next to the stiffener. Two board extractors fitted to

each PBA, secure the PBA in the subrack. They are also used to removethe PBA from the subrack.

2.3.2 Power Supply

All the PBAs operate from a duplicated - 38.4 to - 72 V DC supply. The TP16also requires a + 5V supply. This is provided by the ATBX PBA.

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3 ASMC

3 ASMC

This section describes the ASMC PBA.

This section describes the ASMC PBA, including:

Introduction

Onboard Controller

Interfaces

Switch

TS0 Logic

Serial Communication Controller

Clock Circuits

Memory

Remote Inventory EEPROM

Control and Status Registers

Watchdog Reset Circuit

Long Range Timer

DC/DC Converter

O&M

Physical Description.

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3 ASMC

3.1 Introduction

This section describes the hardware architecture of the ASMC PBA.

LocalQmux

Ater 1

RemoteQmux

Atermux

LEDs

RS232

Interface

Ater 2

Ater 3

Ater 4Time slot OLogic

Atermux

Interface

Ater

Interface

Time SpaceSwitch 1

Time SpaceSwitch 2

OnBoardController

SerialCommunicationController

SubRateSwitch 1

Ater

Interface

Ater

Interface

Ater

Interface

RemoteInventoryEEPROM

RemoteInventory

ClockCircuits

SubRate

Switch 2

RemoteQmuxInterface

LocalQmuxInterface

Man

MachineInterface

WatchdogReset

Switch

Memory

48v

Branch A

+ 5 VLocal QmuxTermination*

* The Local Qmux Termination is only used on one ASMC of a cabinet

48v

Branch B

QmuxExtensionInterfaceExtension

QmuxInterface

Controland StatusRegisters

DC/DCConverter

Figure 6: Simplified Hardware Architecture of the ASMC PBA

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3 ASMC

3.2 Onboard Controller

The OBC manages the local operations and maintenance of the ASMC PBA.The OBC:

Configures and re-configures the ASMC PBA

Monitors the alarms and status of the PBA

Sets up the mapping of the multiplex/demultiplex function

Monitors the performance of the Ater and Ater-mux Interfaces

Controls and monitors the insertion of the tributary (Ater Interface)

information

Controls the insertion and extraction of the embedded Qmux information

Runs self-tests

Controls the PBA alarm LEDs.

3.3 Interfaces

This section describes the main interfaces of the ASMC, which comprise:

Ater Interface

Ater-mux Interface

Local Qmux Interface

Local Qmux Termination

Remote Qmux Interface

Qmux Extension Interface

Qmux Address Interface

Man-Machine Interface.

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3 ASMC

3.3.1 Ater Interface

The ASMC has four Ater Interfaces. An Ater Interface link is a G.703 and G.704compatible 2048 kbit/s PCM link.

The input and output ports provide either 75 Ohms co-axial or 120 Ohmsbalanced pair termination. The type of termination depends on the PBA variant.

Each Ater Interface (see the following figure) comprises:

A G.703 Clock Extraction circuit

A Trunk Controller Chip.

These two circuits operate in conjunction to perform the Ater Interface functions:

Clock Extraction

High Density Bipolar of order 3 to Non-Return to Zero (NRZ) Conversion

Retiming

Frame Alignment Supervision

Cyclic Redundancy Check 4 Monitoring and Generation

Fault Detection

Fault Indications Sent to Remote End

TCC Configuration

Micro Breaks.

AterInterface

TCC

G.703

ClockExtraction

To/from Time SpaceSwitch

To/From SubRateSwitch

HDB3NRZ

Figure 7: Ater Interface

3.3.1.1 Clock Extraction

The G.703 Clock Extraction circuit extracts a 2.048 Mhz clock signal from thereceived PCM signal data marks for clock regeneration purposes. This localclock signal is used to retime the incoming PCM signals.

3.3.1.2 HDB3 to NRZ Conversion

The Ater Interface converts the received HDB3 signal to a binary Non-Return

to Zero signal. Conversely, the interface converts the NRZ signals from theSwitch to HDB3.

3.3.1.3 Retiming

The Ater Interface adapts the frequency and bit alignment of the incomingPCM data stream to the local clock signal. The G.703 Clock Extraction circuitgenerates the clock signal. The frame alignment circuit tolerates jitter andwander in the incoming data without loss of data, as specified in CCITT G.823.

3.3.1.4 Frame Alignment Supervision

Using the data received in Timeslot 0 (TS0), the Ater Interface checks the framealignment. It performs frame realignment if a loss of frame alignment occurs.

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3.3.1.5 CRC4 Monitoring and Generation

The Ater Interface checks for correct synchronization. It also counts the CRC4errors in the received signal (according to G.704 and G.706). The firmwareuses the CRC4 error count to calculate the performance parameters asspecified in G.821.

3.3.1.6 Fault Detection

he Ater Interface monitors the incoming 2048 kbit/s signal to detect faultsand generate error signals.

The following error signals can be detected or generated:

LFA

Remote Alarm Indication (RAI)

Bit Error Ratio (BER)

Loss of Incoming Signal (LIS)

2048 kbit/s AIS Detection

Loss of CRC4 Multiframe Alignment (LMFA)

Slip Detection.

3.3.1.7 Fault Indications Sent to Remote End

The Ater Interface sends AIS and RAI to the remote end according to G.732.

3.3.1.8 TCC Configuration

The TCCs do not have a direct interface with the OBC, therefore they areconfigured by Time Space Switch 2 of the Switch.

3.3.1.9 Micro Breaks

Micro breaks on the Ater Interface do not result in the release of calls.

Micro breaks are short disturbances which can result in the generation of:

LIS

LFA

AIS

LMFA (if CRC4 is active).

Micro break detection is initiated if there is no input. Micro break control isenabled and disabled by the OBC writing to the Micro Break Register.

3.3.2 Ater-mux Interface

The Ater-mux Interface is similar to the Ater Interface and performs similarfunctions. An Ater-mux Interface link is a G.703 and G.704 compatible 2048kbit/s PCM link. It provides the interface between the TC and the BSC.

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3.3.3 Local Qmux Interface

The local Qmux Interface provides communication with the local Qmuxbus in the TC cabinet. It comprises a number of buffers and drivers. Theinterface conforms to the requirements of RS-485. The local Qmux Interface isconnected to Channel A of the SCC.

3.3.4 Local Qmux Termination

The Local Qmux Termination terminates the receive side of the local Qmux bus.Only the master ASMC in the TC cabinet provides this termination.

3.3.5 Remote Qmux Interface

The remote Qmux Interface provides point-to-point communication between thefirst two ASMs in the TC cabinet. The interface conforms to the requirements ofRS-485. The maximum operating speed is 2400 bauds.

The remote Qmux information is inserted into, and extracted from, the Ater-mux

data stream. The Sub-rate Switch performs this function. This mechanismprovides communication with a remote submultiplexer at the BSC site forthe transfer of Qmux information.

3.3.6 Qmux Extension Interface

This interface is used by the master ASMC to drive the local Qmux bus. Itprovides point to multipoint communication. This bus connects the masterASMC to the other PBAs (ASMCs and ATBXs connected to the local Qmux bus.

3.3.7 Qmux Address Interface

This interface determines the address of the ASMC on the local Qmux busvia a plug on the BPA. The software can reprogram this address to match thenetwork configuration requirements.

3.3.8 Man-Machine Interface

The Man-Machine Interface (MMI) provides communication with a localmaintenance device such as a PC (TSC Terminal). The MMI is connected toone channel of the SCC.

The MMI provides serial asynchronous communication at a speed of up to19200 bauds. The baud rate is programmable from 50 to 19200 bauds. AnI/O port bit detects the presence of the TSC terminal. The interface conforms

to RS-232.

The MMI connects to a 9-pin female connector on the front of the PBA.

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3.4 Switch

The Switch performs the multiplexing and demultiplexing, and switchingfunctions. The Switch also sends and detects redundant AISs in the time slotwhich carries the information from the Ater Interfaces. This is done when 1:4mapping is performed. The OBC software controls this function.

The Switch comprises two SRSs and two TSSWs.

3.4.1 Sub-rate Switch

The Sub-rate Switches (SRSs) perform the multiplexing and demultiplexingof channels between the four Ater Interface links to/from the Ater-mux link.They also perform the insertion/extraction of the embedded Qmux channels.This switching function is performed at the bit level.

At the bit level, the SRSs provide:

A non-blocking cross-connection between the Ater Interface and the

A-InterfaceA synchronous sub-rate matrix

Software transparency for the hardware relationship of TS0 with respect

to the frame pulse

The addition and dropping of the Qmux channels (in 16 kbit/s by over

sampling) via a matrix function.

SRS2 also connects a number of serial links to each other. Each link output isthe sum of all the other inputs (excluding its own). These asynchronous 2400baud links operate according to a Qmux protocol.

There are three links which are used for the following interfaces:

Local Qmux Interface (connected to SRS2 via the SCC)

Extension Qmux Interface

Remote Qmux Interface.

In addition to connecting the Qmux links, SRS2:

Controls the enabling and disabling of the local Qmux Interface output

Extracts/inserts three embedded Qmux (16 kbit/s) channels in a 2 Mbit/s

link. It performs conversion to and from the 2400 baud signal

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SRS1 also performs some clock synchronization functions.

ClockSelectionand

Detection

Ater 1 Clock

Ater 2 Clock

Ater 3 Clock

Ater 4 Clock

OnboardOscillator

PhaseComparator

Filter

16 MHz

VoltageControlled1/2

DividerTimingGenerator

Timing toPBA circuits

8 MHz

SRS1 PLL

Figure 8: Clock Synchronization Circuits

All the extracted clocks are applied to the clock selection and detection circuit inSRS1. A clock signal generated by an Onboard Oscillator is also applied to theclock selection and detection circuit.

The clock selection and detection circuit selects one of the inputs on a prioritybasis as follows:

Ater 1 clock (highest priority)

Ater 2 clock

Ater 3 clock

Ater 4 clock

Onboard Oscillator clock (lowest priority).

The selected clock is applied to a phase comparator. The other input to thephase comparator is the output from the 16 MHz VCO applied via a DividerCircuit. The phase comparator output controls the VCO.

The output of the Divider Circuit is applied to the Timing Generator. Thisgenerates:

A 4.096 Mhz clock signal

A 2.048 Mhz clock signal

Frame timing signals, which synchronize the timing of the PBA.

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3.4.2 Time Space Switch

The Time Space Switches (TSSWs) perform 2 Mbit/s frame or time slot basedswitching. This provides simultaneous connections for up to 256 x 64 kbit/schannels.

The switch:

Routes the TSs between the Ater-mux Interface and SRS2

Provides the OBC with read and write access to the TSs

Scans the tributary information bits, AIS, and RAI

Configures the TCCs (part of the Ater and Ater-mux Interfaces) to perform

the required functions.

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3.5 TS0 Logic

The TS0 Logic inserts and extracts the Qmux information and the Far EndAlarm information. It does this by writing to, or reading from, the spare bitsof the TS0 Non Frame Alignment Signal of the Ater-mux Interface. The OBCwrites the FEA bit into a register which the TS0 Logic accesses.

On the transmit side, the TS0 Logic receives the Qmux information from SRS2.If necessary, it adapts the speed of the signal. Then the TS0 logic combinesthe Qmux information with the FEA bit. It sends the combined signal to TSSW1for onward transmission on the Ater-mux link.

On the receive side, the TS0 Logic receives the TS0 NFAS from the TCC of theAter-mux Interface. It extracts the Qmux information and sends it to SRS2.

The TS0 Logic ensures compatibility with Nokia Network Elements whichuse TS0 for the Qmux information.

Modes of Operation

The TS0 Logic operates in one of four modes (see the following table and

figure).

Mode Description

0 There is no insertion/extraction of the Qmux informationin TS0. The output of the TS0 logic is set to the tri-state(high impedance).

1 The Qmux sampling rate is 4 kHz. Bit 8 corresponds tothe Qmux data.

2 The Qmux sampling rate is 8 kHz. Bits 7 and 8 correspond

to the Qmux data.

3 The Qmux sampling rate is 16 kHz. Bits 5 to 8 correspondto the Qmux data.

Table 4: TSO Logic - Modes of Operation

Mode 0: No QmuxInsertion/Extraction in TS0

Mode 1: Qmux sampling rate = 4 kHz



TS0 NFAS

TS0 NFAS 1 1 A 1 1 1 1 Q0

1 1 1 1 1 1 1 1

TS0 NFAS 1 1 A 1 1 1 Q1 Q0

TS0 NFAS 1 1 A 1 Q3 Q2 Q1 Q0

1 2 3 4 5 6 7 8

Figure 9: TS0 Logic - Operating Modes

Bit 3 (A) is the RAI, which is set to 0 during error free operations. It is set to 1when an RAI is sent to the remote end. The unused national bits are set to 1.

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3.6 Serial Communication Controller

The SCC is a dual channel, multi-protocol communication controller. Itfunctions as a serial-to-parallel and as a parallel-to-serial converter/controller.Two independent full-duplex channels are programmed for asynchronousdata communication.

The two channels are:

Channel A, which provides the local Qmux Interface link.

Channel B, which provides the MMI link.

3.7 Clock Circuits

The clock circuits, together with the PLL of SRS1 generate the timing signalsfor the PBA. The following table describes the clock circuits.

Circuit Description

VCO Generates the 16.384 MHz clock signal which drives thePLL.

Out of RangeDetector

Sends an alarm to the OBC if the control voltage of theVCO exceeds a predefined high or low limit.

OnboardOscillator

Generates an 8.191 MHz clock signal. This signal isapplied to SRS1.

Table 5: Clock Circuits

3.8 Memory

The following table describes the three types of memory on the ASMC PBA.

Circuit Description

EPROM The 512 kbytes EPROM stores all the software required for operational and test tasks.

RAM The OBC stores volatile information in the RAM during normal operations. The staticRAM has 256 kbytes of memory.

EEPROM The EEPROM stores PBA settings such as system configuration and error counters. Itprovides 64 kbytes of non volatile memory. Write protection prevents the information inthe EEPROM being overwritten if an OBC malfunction occurs.

Table 6: ASMC Memories

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3.9 Remote Inventory EEPROM

The Remote Inventory EEPROM stores PBA inventory information. The PBAinventory information includes items such as PBA manufacturing information,PBA identification and PBA history. Access to the Remote Inventory EEPROMis via the Remote Inventory Register.

3.10 Control and Status Registers

The control and status registers comprise:

Onboard Registers

TS0 Logic Registers

SCC Registers

TSSW Registers

SRS Registers.

3.10.1 Onboard Registers

There are four onboard registers:

General Purpose Register

Remote Inventory Register

Qmux Address Register

MBR.

3.10.1.1 GPR

The GPR is an 8-bit register that allows software control of the local QmuxInterface and the LEDs. It also allows the software to reset the ASMC PBA.The following table describes the used bits of the GPR.

Bit Name Access Description

LED1 to 4 RW Each control one of the four LEDs mounted on the front ofthe PBA.

SW-Reset RW Allows the software to reset the PBA.

LQen RW Disables or enables the local Qmux Interface

Mux RW Selects the MMI

PITMSK RW The enable signal for the watchdog timer when it changesfrom logic 0 to logic 1. When the watchdog timer has beenenabled, it cannot be disabled.

Table 7: GPR Bits (ASMC)

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3.10.1.2 RINVR

The RINVR is an 8-bit register that controls access to the Remote InventoryEEPROM. The following table describes the used bits of the RINVR.


OBC-SK RW Drives the clock signal of the Remote Inventory EEPROM

OBC-CS RW Enables the Remote Inventory EEPROM when set (1).

OBC-DI RW Enables the serial data input to the Remote InventoryEEPROM.

OBC-PRE RW Enables the protected register when it is set (1).

OBC-DO RO Enables the Remote Inventory EEPROM data outputs.

OBC-IAE RO Indicates whether the Remote Inventory EEPROM can be

accessed by the OBC.

REEN RW Enables the remote and extended Qmux outputs when itis set (1).

TIMEN RW Enables the long range timer when set (1).

Table 8: RINVR Bits (ASMC)

3.10.1.3 QAR

The QAR is an 8-bit register that indicates the Qmux address and the statusof a number of alarms and signals. The following table describes the usedbits of the QAR.


QMA0 - 4 RO Indicate the local Qmux address.

MTPR RO Indicates the status of the PBA, i.e. test mode or operational.

OUTRNG RO Indicates that a PLL clock synchronization alarm (out ofrange detected) has occurred.

DSR RO Indicates the status of the Data Set Read signal of the MMI,i.e. terminal connected/not connected to the PBA.

Table 9: QAR Bits (ASMC)

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3.10.1.4 MBR

The MBR controls the micro break control for the Ater Interfaces and theAter-mux Interface. The following table describes the used bits of the MBR.


MB ATER 0- 4 WR Enable the micro break control for Ater Interfaces 1 to 4when set (1).

MB ATERM WR Enables the micro break control for the Ater-mux Interfacewhen set (1).

Table 10: MBR Bits (ASMC)

3.10.2 TS0 Logic Registers

The TS0 Logic Registers control the operations of the TS0 Logic. Theycomprise:

Link Register, which indicates the FEA bit corresponding to the Ater-mux

Interface to the TS0 Logic.

Mode Register, which indicates the rate at which the Qmux information is

sampled:

No sampling

4 kHz sampling

8 kHz sampling

16 kHz sampling.

The registers are part of the TS0 Logic function.

3.10.3 SCC Registers

There are four registers via which the OBC controls the SCC:

B Channel Control

A Channel Control

B Channel Data

A Channel Data.

Each register controls the associated channel or data. The registers arepart of the SCC.

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3.10.4 TSSW Registers

There are four registers via which the OBC controls the TSSWs:

TSSW1 Control Register

TSSW1 Channel Register

TSSW2 Control Register

TSSW2 Channel Register.

Each register controls the associated TSSW. The registers are part of theTSSW.

3.10.5 SRS Registers

There are two groups of registers via which the OBC controls the SRSs, SRS1registers and SRS2 registers. Each group of registers controls the operationof the associated SRS and the functions it performs. The registers are partof the related SRS.

3.11 Watchdog Reset Circuit

A reset signal is generated:

If the voltage decreases below +4.75V

At power-on

Whenever the watchdog timer expires

When a reset signal is applied to the reset pin on the BPA

By a reset command given by software.

The reset is a general PBA reset, including the OBC.

Timer 0 of a Programmable Internal Timer provides the Watchdog function.The Watchdog timeout can be programmed from 4.096 ms to approximately4.5 minutes in steps of 4.096 ms.

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3.12 Long Range Timer

Timers 1 and 2 of the timer circuit are connected in cascade to provide a longrange timer. When this timer expires, it generates an OBC interrupt.

3.13 DC/DC ConverterThe onboard DC/DC Converter provides the + 5V supply required by the ASMCPBA. It is driven by the -48 V/-60 V battery supply. A 250 mA fuse (mountedon the PBA) protects the converter.

3.14 O&M

This section describes the O&M facilities provided on the ASMC. These are:

LEDs

Replacement.

3.14.1 LEDs

The ASMC has five LEDs. LEDs 4 and 5 are front mounted close to thefront stiffener. LEDs 1 to 3 are side mounted close to the front stiffener. Thefollowing table describes the functions of the LEDs.

LED Description

5 Indicates that power is connected to the PBA

4 Indicates:

Off; PBA is operational (no alarms)

Flashing; an alarm is active on the PBA

1, 2 and 3 Off in normal operation

Table 11: ASMC LED Description

3.14.2 Replacement

The DC/DC Converters allow the PBA to be inserted into, or removed from, thebackpanel with the power still applied.

This ensures that:

The hardware of the PBA is not damaged

Power drops do not occur on the other PBAs.

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3.15 Physical Description

3.15.1 Dimensions

Refer to Printed Board Assemblies (Section 2.3).

3.15.2 Power Supply

Refer to Printed Board Assemblies (Section 2.3).

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3.15.3 Front Panel

The following figure shows the front panel layout.

Extractor

PBA

Front View

Extractor

PBA

Green (5)

Red (4)

Red (3)

Red (2)

Red (1)

Side mountedLEDs

Front mountedLEDs

MMIconnector

Figure 10: ASMC Front Panel

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4 ATBX

This section describes the ATBX PBA.

It comprises the following main parts:

Introduction

Onboard Controller

Interfaces

Switch

Serial Communication Controller

Clock Circuits

Memory

Remote Inventory EEPROM

Control and Status Registers

Watchdog Reset Circuit

Long Range Timer

DC/DC Converter

O&M

Physical Description.

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4.1 Introduction

This section describes the hardware architecture of the ATBX PBA.

LocalQmux

Ater 1 A Interface

RS232

Interface

64

kbit/s

2 Mbit

PCM

links

A InterfaceAter

Interface

64 kbit/sData

Interface

TP16

Interface

RemoteInventory

ClockCircuits

LocalQmuxInterface

Man

MachineInterface

WatchdogReset

Switch

+ 5 V48v

Branch B

48v

Branch A

SerialCommunicationController

RemoteInventoryEEPROM

Memory

LEDs

Controland StatusRegisters

Subrate

Switch

Time SpaceSwitch

OnBoardController

DC/DCConverter

Figure 11: Simplified Hardware Architecture of the ATBX PBA

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4.2 Onboard Controller

The OBC manages the local operations and maintenance of the ATBX PBA.

The OBC:

Configures and re-configures the ATBX PBA

Monitors the alarms and status of the PBA

Sets up the mapping of the multiplex/demultiplex function

Monitors the performance of the Ater Interface and the A Interface

Controls the insertion and extraction of the embedded Qmux information

Runs self-tests

Controls the PBA alarm LEDs.

4.3 InterfacesThis section describes the main interfaces of the ATBX, which comprise:

Ater Interface

Local Qmux Interface

Remote Qmux Interface

Qmux Extension Interface

Qmux Address Interface

Man-Machine Interface64 kbit/s Data Interface

TP16 Interface.

4.3.1 Ater Interface

The Ater Interface link is the same as that on the ASMC PBA (see AterInterface (Section 3.3.1)).

4.3.2 A Interface

The A Interface is similar to the Ater Interface. It performs similar functions forthe A Interface link.

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4.3.3 Local Qmux Interface

The local Qmux Interface provides communication with the local Qmuxbus in the TC cabinet. It comprises a number of buffers and drivers. Theinterface conforms to the requirements of RS-485. The local Qmux Interface isconnected to Channel A of the SCC.

4.3.4 Qmux Address Interface

This interface determines the address of the ATBX on the local Qmux bus via aplug on the BPA. The software can reprogram this address to match thenetwork configuration requirements.

4.3.5 Man-Machine Interface

The MMI provides communication with a local maintenance device such as aPC (TSC Terminal). The MMI is connected to Channel B of the SCC.

The MMI provides serial asynchronous communication at a speed of up to

19200 bauds. The baud rate is programmable from 50 to 19200 bauds. AnI/O port bit detects the presence of TSC terminal. The interface conformsto RS-232.

The MMI connects to a 9-pin female connector on the front of the PBA.

4.3.6 64 kbit/s Data Interface

The 64 kbit/s Data Interface allows a 64 kbit/s synchronous serial data link tobe connected to the ATBX. The data can be inserted into or extracted from anytime slot of the Ater Interface or A Interface. The SRS performs the insertionand extraction function. The interface is connected to the backpanel connector.

4.3.7 TP16 Interface

This is the interface with the TP16 PBAs. It comprises two 2.048 Mbit/s PCMlinks. One link carries the 16 kbit/s traffic channels and the 48 kbit/s O&Mchannels to the TP16 PBAs. The other link carries the 64 kbit/s channels toand from the TP16 PBASs.

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4.4 Switch

The Switch performs:

Switching of 16 kbit/s sub-rate channels from the Ater Interface to and from

the TP16 PBAs. These channels are transmitted in two bits of each time

slot to and from the TP16 PBAs.

Switching of 64 kbit/s channels from the A Interface to and from the TP16

PBAs

Connection of a Number 7 Comm

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Evolium Transcoder Hardware Description

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