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Title page
Nortel Networks Communication Server 1000
Nortel Networks Communication Server 1000 Release 4.0
Circuit Card
Description and Installation
Document Number: 553-3001-211
Document Release: Standard 2.00
Date: September 2004
Year Publish FCC TM
Copyright © 2003—2004 Nortel Networks
All Rights Reserved
Produced in Canada
Information is subject to change without notice. Nortel Networks reserves the right to make changes in design
or components as progress in engineering and manufacturing may warrant.
SL-1, Meridian 1, and Succession are trademarks of Nortel Networks.
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4
Page 3 of 894
Revision history
September 2004
Standard 2.00. This document is up-issued for Communication Server 1000
Release 4.0.
October 2003
Standard 1.00. This document is a new NTP for Succession 3.0. It was created
to support a restructuring of the Documentation Library, which resulted in the
merging of multiple legacy NTPs. This new document consolidates
information previously contained in the following legacy documents, now
retired:
• Line Cards: Description (553-3001-105)
• Trunk Cards: Description (553-3001-106)
• Serial Data Interface Cards: Description (553-3001-107)
• NT7D16 Data Access Card: Description and operation (553-3001-191)
• Multi-purpose Serial Data Link: Description (553-3001-195)
• Circuit Cards: Installation and Testing (553-3001-211)
• Option 11C and 11C mini Technical Reference Guide (553-3011-100)
(Content from Option 11C and 11C mini Technical Reference Guide
(553-3011-100) also appears in Telephones and Consoles: Description,
Installation, and Operation (553-3001-367).)
• Circuit Card Reference (553-3023-211)
Circuit Card Description and Installation
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Page 4 of 894 Revision history
553-3001-211 Standard 2.00 September 2004
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18
Page 5 of 894
Contents
About this document . . . . . . . . . . . . . . . . . . . . . . . 19
Subject .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Applicable systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Conventions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Related information .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Installation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Serial Data Interface (SDI) cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Circuit card installation . . . . . . . . . . . . . . . . . . . . . 77
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Card slots — Large System .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Circuit card installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Installing a circuit card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Acceptance tests . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Circuit Card Description and Installation
Page 6
Page 6 of 894 Contents
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Conference cards .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Digitone receiver cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Multifrequency sender cards .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Multifrequency signaling cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Network cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Tone and digit switch cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Option settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Circuit card grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
NT1R20 Off-Premise Station card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
NT5D12AA Dual DTI/PRI (DDP) card . . . . . . . . . . . . . . . . . . . . . . . . 105
NT6D42 Ringing Generator DC .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
NT5D2101/NT9D1102 Core/Network module backplane .. . . . . . . . . 115
NT6D68 Core module backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
NT6D80 Multi-purpose Serial Data Link card . . . . . . . . . . . . . . . . . . . 116
NT8D14 Universal Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
NT8D15 E&M Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
NT8D17 Conference/TDS card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
NT8D21 Ringing Generator AC .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
NT8D22 System Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
NT8D41BA Quad Serial Data Interface Paddle Board . . . . . . . . . . . . 130
NT8D72 Primary Rate Interface card .. . . . . . . . . . . . . . . . . . . . . . . . . 132
QPC43 Peripheral Signaling card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
QPC71 E&M/DX Signaling and Paging Trunk cards . . . . . . . . . . . . . 134
QPC414 Network card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
QPC441 3-Port Extender cards .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
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Contents Page 7 of 894
QPC559, QPC560 Loop Signaling Trunk cards . . . . . . . . . . . . . . . . . 139
QPC528 CO/FX/WATS Trunk cards .. . . . . . . . . . . . . . . . . . . . . . . . . 141
QPC471 Clock Controller card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
QPC525, QPC526, QPC527, QPC777 CO Trunk card .. . . . . . . . . . . . 143
QPC550 Direct Inward Dial Trunk card . . . . . . . . . . . . . . . . . . . . . . . . 144
QPC551 Radio Paging Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
QPC595 Digitone Receiver cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
QPC577, QPC596 Digitone Receiver daughterboards . . . . . . . . . . . . . 148
QPC720 Primary Rate Interface card . . . . . . . . . . . . . . . . . . . . . . . . . . 148
QPC775 Clock Controller card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
QPC841 4-Port Serial Data Interface card . . . . . . . . . . . . . . . . . . . . . . 151
NT1R20 Off-Premise Station
Analog Line card . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Electrical specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Configuring the OPS analog line card .. . . . . . . . . . . . . . . . . . . . . . . . . 172
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
NT5D11 and NT5D14 Lineside T1
Interface cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Electrical specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Circuit Card Description and Installation
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Installation and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Man-Machine T1 maintenance interface software . . . . . . . . . . . . . . . . 213
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
NT5D33 and NT5D34 Lineside E1
Interface cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Man-Machine E1 maintenance interface software . . . . . . . . . . . . . . . . 272
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
NT5D60/80 CLASS Modem card (XCMC) . . . . . . . 301
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
NT5D97 Dual-port DTI2/PRI2 card . . . . . . . . . . . . . 307
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
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NT5K02 Flexible Analog Line card . . . . . . . . . . . . 355
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
NT5K21 XMFC/MFE card . . . . . . . . . . . . . . . . . . . . . 357
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
MFC signaling .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
MFE signaling .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
Sender and receiver mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
NT6D70 SILC Line card . . . . . . . . . . . . . . . . . . . . . . 367
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
NT6D71 UILC Line card . . . . . . . . . . . . . . . . . . . . . . 373
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
NT6D80 MSDL card . . . . . . . . . . . . . . . . . . . . . . . . . 377
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380
Engineering guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385
Installation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392
Circuit Card Description and Installation
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Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
Replacing MSDL cards .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Symptoms and actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 410
System disabled actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
NT7D16 Data Access card . . . . . . . . . . . . . . . . . . . 415
Content list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 415
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
Features .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
Controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Dialing operations .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423
Keyboard dialing .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
Hayes dialing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 473
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485
System database requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488
Power supply .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 492
Installing the Data Access card .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493
Port configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 495
Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497
Backplane pinout and signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502
Configuring the Data Access card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 505
Connecting Apple Macintosh to the DAC . . . . . . . . . . . . . . . . . . . . . . 510
Upgrading systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 510
NT8D02 and NTDK16 Digital Line cards . . . . . . . . 515
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 515
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 516
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 518
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524
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Digital line interface specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . 525
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 529
NT8D03 Analog Line card . . . . . . . . . . . . . . . . . . . . 533
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533
NT8D09 Analog Message Waiting
Line card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549
NT8D14 Universal Trunk card . . . . . . . . . . . . . . . . 553
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 555
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 558
Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561
Electrical specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 597
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 602
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 603
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 612
NT8D15 E&M Trunk card . . . . . . . . . . . . . . . . . . . . 615
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 615
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 615
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 617
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 619
Circuit Card Description and Installation
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Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 629
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 642
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 646
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 652
NT8D41AA Serial Data Interface
Paddle Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 656
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 658
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 659
Configuring the SDI paddle board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 660
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 666
NT8D41BA Quad Serial Data Interface
Paddle Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 673
Configuring the QSDI paddle board . . . . . . . . . . . . . . . . . . . . . . . . . . . 675
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 680
NTAG26 XMFR card . . . . . . . . . . . . . . . . . . . . . . . . 683
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 683
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 683
Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 688
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Contents Page 13 of 894
NTAK02 SDI/DCH card . . . . . . . . . . . . . . . . . . . . . . 689
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 689
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 689
NTAK02 SDI/DCH card .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 689
NTAK09 1.5 Mb DTI/PRI card . . . . . . . . . . . . . . . . . 697
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 697
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 697
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 698
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 702
Architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 703
NTAK10 2.0 Mb DTI card . . . . . . . . . . . . . . . . . . . . . 709
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 710
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 711
Architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 712
NTAK20 Clock Controller daughterboard . . . . . . . 723
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 723
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 723
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 726
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 727
NTAK79 2.0 Mb PRI card . . . . . . . . . . . . . . . . . . . . . 733
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 733
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 733
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 734
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 739
Architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 740
Circuit Card Description and Installation
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NTAK93 D-channel Handler
Interface daughterboard . . . . . . . . . . . . . . . . . . . . 751
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 751
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 751
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 752
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753
NTBK22 MISP card . . . . . . . . . . . . . . . . . . . . . . . . . 757
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 757
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 757
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 757
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 758
NTBK50 2.0 Mb PRI card . . . . . . . . . . . . . . . . . . . . 761
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 761
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 761
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 762
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 765
Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 766
NTBK51 Downloadable D-channel Handler
daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 774
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 775
Download operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 777
NTCK16 Generic Central Office
Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 779
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 779
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 779
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Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 781
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 781
Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 782
Electrical specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 784
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 785
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 785
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 795
NTDK20 Small System
Controller card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 799
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 799
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 799
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 802
100BaseT IP daughterboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 803
PC card interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 806
Security device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 807
SDI ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 808
Conferencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 808
MG 1000S/Expansion card slot assignment . . . . . . . . . . . . . . . . . . . . . 809
NTRB21 DTI/PRI/DCH TMDI card . . . . . . . . . . . . . . 813
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 813
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 813
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 814
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 818
Software description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 819
Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 819
Architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 819
NTVQ01xx Media Card . . . . . . . . . . . . . . . . . . . . . . 827
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 827
Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 827
Circuit Card Description and Installation
Page 16
Page 16 of 894 Contents
Hardware architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 829
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 831
Survivability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 831
NTVQ55AA ITG Pentium card . . . . . . . . . . . . . . . . 833
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 833
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 833
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 834
QPC513 Enhanced Serial Data
Interface card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 839
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 839
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 839
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 840
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 842
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 847
Configuring the ESDI card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 850
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 855
QPC841 Quad Serial Data Interface card . . . . . . . 857
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 857
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 857
Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 858
Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 860
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 862
Configuring the QSDI card .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 864
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 870
The TDS/DTR card . . . . . . . . . . . . . . . . . . . . . . . . . 873
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 873
Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 873
Features .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 874
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Appendix A: LAPB Data Link Control
protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 889
Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 889
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 889
Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 889
Frame structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 890
LAPB balanced class of procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 891
Commands and responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 892
Description of procedure .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 893
Circuit Card Description and Installation
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About this document
This document is a global document. Contact your system supplier or your
Nortel Networks representative to verify that the hardware and software
described are supported in your area.
Subject
This document outlines the functions, specifications, applications, and
operation of the various circuit cards.
Note 1: Line cards – This information is intended to be used as a guide
when connecting the line cards to customer-provided station equipment.
Note 2: Trunk cards – This information is intended to be used as a guide
when connecting the trunk cards to customer-provided equipment and
central office trunk facilities.
Note 3: MSDL card – This card provides multiple interface types with
four full-duplex serial I/O ports that can be independently configured for
various operations. Peripheral software downloaded to the MSDL
controls functionality for each port.
Note 4: Synchronous operation is permitted on all MSDL ports. Port 0
can be configured as an asynchronous Serial Data Interface (SDI).
For detailed procedures for removing a specific circuit card and installing a
replacement, see Communication Server 1000M and Meridian 1:
Large System Maintenance (553-3021-500).
For a description of all administration programs and maintenance programs,
see the Software Input/Output: Administration (553-3001-311). For
Circuit Card Description and Installation
Page 20
Page 20 of 894 About this document
information about system messages, see the Software Input/Output: System
Messages (553-3001-411).
Note on legacy products and releases
This NTP contains information about systems, components, and features that
are compatible with Nortel Networks Communication Server 1000
Release 4.0 software. For more information on legacy products and releases,
click the Technical Documentation link under Support on the Nortel
Networks home page:
http://www.nortelnetworks.com/
Applicable systems
This document applies to the following systems:
• Communication Server 1000S (CS 1000S)
• Communication Server 1000M Chassis (CS 1000M Chassis)
• Communication Server 1000M Cabinet (CS 1000M Cabinet)
• Communication Server 1000M Half Group (CS 1000M HG)
• Communication Server 1000M Single Group (CS 1000M SG)
• Communication Server 1000M Multi Group (CS 1000M MG)
• Communication Server 1000E (CS 1000E)
• Meridian 1 PBX 11C Chassis (Meridian 1 PBX 11C Chassis)
• Meridian 1 PBX 11C Cabinet (Meridian 1 PBX 11C Cabinet)
• Meridian 1 PBX 51C
• Meridian 1 PBX 61C
• Meridian 1 PBX 61C CP PII
•Meridian1 PBX81
• Meridian 1 PBX 81C
• Meridian 1 PBX 81C CP PII
553-3001-211 Standard 2.00 September 2004
Page 21
Note: When upgrading software, memory upgrades may be required on
the Signaling Server, the Call Server, or both.
Intended audience
This document is intended for individuals responsible for maintaining
Internet Enabled systems.
Conventions
Terminology
In this document, the following systems are referred to generically as
“system”:
• Communication Server 1000S (CS 1000S)
• Communication Server 1000M (CS 1000M)
• Communication Server 1000E (CS 1000E)
•Meridian1
The following systems are referred to generically as “Small System”:
About this document Page 21 of 894
• Communication Server 1000M Chassis (CS 1000M Chassis)
• Communication Server 1000M Cabinet (CS 1000M Cabinet)
• Meridian 1 PBX 11C Chassis (Meridian 1 PBX 11C Chassis)
• Meridian 1 PBX 11C Cabinet (Meridian 1 PBX 11C Cabinet)
The following systems are referred to generically as “Large System”:
• Communication Server 1000M Half Group (CS 1000M HG)
• Communication Server 1000M Single Group (CS 1000M SG)
• Communication Server 1000M Multi Group (CS 1000M MG)
• Meridian 1 PBX 51C
• Meridian 1 PBX 61C
• Meridian 1 PBX 61C CP PII
Circuit Card Description and Installation
Page 22
Page 22 of 894 About this document
•Meridian1 PBX81
• Meridian 1 PBX 81C
• Meridian 1 PBX 81C CP PII
Related information
This section lists information sources that relate to this document.
NTPs
The following NTPs are referenced in this document:
• Meridian Link ISDN/AP General Guide (553-2901-100)
• Spares Planning (553-3001-153)
• Equipment Identification (553-3001-154)
• Transmission Parameters (553-3001-182)
• System Management (553-3001-300)
• Features and Services (553-3001-306)
• Software Input/Output: Administration (553-3001-311)
• Telephones and Consoles: Description, Installation, and Operation
(553-3001-367)
• Software Input/Output: System Messages (553-3001-411)
• Software Input/Output: Maintenance (553-3001-511)
• Communication Server 1000M and Meridian 1: Large System Planning
and Engineering (553-3021-120)
• Communication Server 1000M and Meridian 1: Large System
Installation and Configuration (553-3021-210)
• Communication Server 1000M and Meridian 1: Large System
Maintenance (553-3021-500)
• Communication Server 1000S: Installation and Configuration
(553-3031-210)
• Meridian Link description (553-3201-110)
553-3001-211 Standard 2.00 September 2004
Page 23
About this document Page 23 of 894
Online
To access Nortel Networks documentation online, click the
Technical Documentation link under Support on the Nortel Networks
home page:
http://www.nortelnetworks.com/
CD-ROM
To obtain Nortel Networks documentation on CD-ROM, contact your
Nortel Networks customer representative.
Circuit Card Description and Installation
Page 24
Page 24 of 894 About this document
553-3001-211 Standard 2.00 September 2004
Page 25
76
Page 25 of 894
Overview
Contents
This section contains information on the following topics:
Line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Analog line interface units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Digital line interface units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Analog line call operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Digital line call operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Lineside T1 call operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Voice frequency audio level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Off-premise line protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Line protectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Line protection grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Line and telephone components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Host interface bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Trunk interface unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Serial Data Interface (SDI) cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Circuit Card Description and Installation
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Line cards
The following line cards are designed using the Intelligent Peripheral
Equipment (IPE) architecture and are recommended for use in all new system
designs.
Each of the line cards was designed to fit a specific system need. Table 1 lists
the line card characteristics.
Table 1
Line card characteristics
Part
Number
Description Lines
Line
Typ e
Message
Waiting
Supervised
Analog
Lines
Architecture
NT1R20 Off-premise station
analog line card
NT5D11 Lineside T1 Interface
card
NT5D33/34 Lineside E1 Interface
card
NT8D02 Digital Line card
(16 voice/16 data)
NT8D09 Analog Message
Waiting Line card
8 Analog Interrupted dial
tone
24 T1 None Ye s IPE
30 E1 None Yes IPE
16 Digital Message waiting
signal forwarded
to digital phone
for display
16 Analog Lamp No IPE
Ye s IPE
No IPE
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Overview Page 27 of 894
NT1R20 Off-Premise Station Analog Line card
The NT1R20 Off-Premise Station (OPS) Analog Line card is an intelligent
eight-channel analog line card designed to be used with 2-wire analog
terminal equipment such as analog (500/2500-type) telephones and analog
modems. Each line has integral hazardous and surge voltage protection to
protect the system from damage due to lightning strikes and accidental power
line connections. This card is normally used whenever the phone lines have
to leave the building in which the switch is installed. The OPS line card
supports message waiting notification by interrupting the dial tone when the
receiver is first picked up. It also provides battery reversal answer and
disconnect analog line supervision and hook flash disconnect analog line
supervision features.
NT5D11 lineside T1 interface card
The NT5D11 lineside T1 Interface card is an intelligent 24-channel digital
line card that is used to connect the switch to T1 compatible terminal
equipment on the lineside. T1 compatible terminal equipment includes voice
mail systems, channel banks containing FXS cards, and key systems such as
the Nortel Networks Norstar. The lineside T1 card differs from trunk T1 cards
in that it supports terminal equipment features such as hook-flash, transfer,
hold, and conference. It emulates an analog line card to the system software.
NT5D33 and NT5D34 Lineside E1 Interface card
The NT5D33/34 Lineside E1 Interface card is an intelligent 30-channel
digital line card that is used to connect the switch to E1 compatible terminal
equipment on the lineside. E1 compatible terminal equipment includes voice
mail systems. The lineside E1 card emulates an analog line card to the system
software.
NT8D02 digital line card
The NT8D02 Digital Line card is an intelligent 16-channel digital line card
that provides voice and data communication links between a CS 1000S,
CS 1000M, and Meridian 1 switch and modular digital telephones. Each of
the 16 channels support voice-only or simultaneous voice and data service
over a single twisted pair of standard telephone wire.
Circuit Card Description and Installation
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NT8D09 analog message waiting line card
The NT8D09 Analog Message Waiting Line card is an intelligent 16-channel
analog line card designed to be used with 2-wire terminal equipment such as
analog (500/2500-type) telephones, modems, and key systems. This card can
also provide a high-voltage, low-current signal on the Tip and Ring pair of
each line to light the message waiting lamp on phones equipped with that
feature.
Installation
This section provides a high-level description of how to install and test line
cards.
IPE line cards can be installed in any slot of the NT8D37 IPE module.
Figure 1 shows where an IPE line card can be installed in an NT8D37 IPE
module.
Figure 1
IPE line cards shown installed in an NT8D37 IPE module
IPEPE Module
Intelligent line cards
Intelligent trunk cards
BRSC
PE Pwr Sup Rng Gen
0 2 3 4 5 6 7 Cont 9 11 12 13 15181410
553-3001-211 Standard 2.00 September 2004
Intelligent line cards
Intelligent trunk cards
BRSC
NT8D01 Controller Card
Intelligent
Peripheral Equipment
Superloop
Shelf
553-3092
Page 29
When installing line cards, follow these general procedures:
• Configure the jumpers and switches on the line card (if any) to meet
• Install the line card into the selected slot.
• Install the cable that connects the backplane connector on the IPE
• Connect a 25-pair cable from the module I/O panel connector to the Main
• Connect the line card output to the selected terminal equipment at the
• Configure the individual line interface unit using the Analog (500/
Once these steps have been completed, the terminal equipment is ready
for use.
Operation
Overview Page 29 of 894
system needs.
module to the module I/O panel.
Distribution Frame (MDF).
MDF.
2500-type) Telephone Administration program LD 10 for analog line
interface units and Multi-line Telephone Administration program LD 11
for digital line interface units.
This section describes how line cards fit into the CS 1000S, CS 1000M, and
Meridian 1 architecture, the busses that carry signals to and from the line
cards, and how they connect to terminal equipment. These differences are
summarized in Table 2 on page 30.
Host interface bus
Cards based on the IPE bus have a built-in microcontroller. The IPE
microcontroller is used to do the following:
• perform local diagnostics (self-test)
Circuit Card Description and Installation
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• configure the card according to instructions issued by the system
• report back to the system information such as card identification (type,
vintage, and serial number), firmware version, and programmed
configuration status)
Table 2
IPE module architecture
Parameter IPE
Card Dimensions 31.75 x 25.4 x 2.2 cm.
Network Interface DS-30X Loops
Communication Interface card LAN Link
Microcontroller 8031 / 8051 Family
(12.5 x10.0 x 0.875 in.)
Peripheral
Interface card
Network Interface card NT8D04 Superloop Network card
Modules NT8D37 IPE module
NT8D01 Controller card
Intelligent Peripheral Equipment
IPE line cards all have a similar architecture. Figure 2 on page 32 shows a
typical IPE line card architecture. The various line cards differ only in the
number and types of line interface units.
The switch communicates with IPE modules over two separate interfaces.
Voice and signaling data are sent and received over DS-30X loops, and
maintenance data is sent over a separate asynchronous communication link
called the card LAN link.
Signaling data is information directly related to the operation of the telephone
line. Some examples of signaling commands include:
• off-hook/on-hook
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Overview Page 31 of 894
• ringing signal on/off
• message waiting lamp on/off
Maintenance data is data relating to the setup and operation of the IPE card,
and is carried on the card LAN link. Some examples of maintenance data
include:
• polling
• reporting of self-test status
• CP initiated card reset
• reporting of card ID (card type and hardware vintage)
• reporting of firmware version
• downloading line interface unit parameters
• reporting of line interface unit configuration
• enabling/disabling of the DS-30X network loop bus
• reporting of card status or T1 link status
Circuit Card Description and Installation
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Figure 2
Typical IPE analog line card architecture
Back-
plane
Con-
troller
card
Front
panel
LED
Card slot
address
Async card
frame sync
LAN link
Tx PCM
Rx PCM
5.12 MHz
clock
1 kHz
Input/output
interface
control
Micro-
controller
Card LAN
interface
DS-30X
interface
and status
Control
Control
logic
PCM
Address/
data bus
PCM
Signaling
Codec
Codec
signaling
interface
Line
Line
Interface
Unit
Line
Interface
Unit
Line interface unit power
Tip
Ring
Analog or digital telephone linesAnalog or digital telephone lines
Tip
Ring
Power supplies
553-3001-211 Standard 2.00 September 2004
553-6150
Page 33
Overview Page 33 of 894
DS-30X loops
The line interfaces provided by the line cards connect to conventional 2-wire
(tip and ring) line facilities. IPE analog line cards convert the incoming
analog voice and signaling information to digital form and route it to the Call
Server over DS-30X network loops. Conversely, digital voice and signaling
information from the Call Server is sent over DS-30X network loops to the
analog line cards where it is converted to analog form and applied to the line
facility.
IPE digital line cards receive the data from the digital phone terminal as
512 kHz Time Compressed Multiplexed (TCM) data. The digital line card
converts that data to a format compatible with the DS-30X loop and transmits
it in the next available timeslot. When a word is received from the DS-30X
loop, the digital line card converts it to the TCM format and transmits it to the
digital phone terminal over the digital line facility.
A separate dedicated DS-30X network loop is extended between each IPE
line/trunk card and the controller cards within an IPE module. A DS-30X
network loop is composed of two synchronous serial data buses. One bus
transports in the Transmit (Tx) direction towards the line facility and the other
in the Receive (Rx) direction towards the CS 1000S, CS 1000M, and
Meridian 1.
Each bus has 32 channels for Pulse Code Modulated (PCM) voice data. Each
channel consists of a 10-bit word. See Figure 3 on page 34. Eight of the 10
bits are for PCM data, one bit is the call signaling bit, and the last bit is a data
valid bit. The eight-bit PCM portion of a channel is called a timeslot. The
DS-30X loop is clocked at 2.56 Mbps (one-half the 5.12 MHz clock
frequency supplied by the controller card). Thus, the timeslot repetition rate
for a single channel is 8 kHz. The controller card also supplies a locally
generated 1 kHz frame sync signal for channel synchronization.
Signaling data is transmitted to and from the line cards using the call signaling
bit within the 10-bit channel. When the line card detects a condition that the
switch needs to know about, it creates a 24-bit signaling word. This word is
shifted out on the signaling bit for the associated channel one bit at a time
during 24 successive DS-30X frames. Conversely, when the switch sends
signaling data to the line card, it is sent as a 24-bit word divided among 24
successive DS-30X frames.
Circuit Card Description and Installation
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Figure 3
DS-30X loop data format
DS-30X loop
data words
Frame
sync
5.12 MHz
2.56 MHz
Frame sync
DS-30X loop
data bits
29
W0B7W31DV
SB = SIGNALING BIT DV = DATA VALID
30 31 0 1 2 3 4
W0B6 W0B5 W0B4 W0B3 W0B2 W0B1 W0B0 W0SB W0DV W1B7
553-6151
DS-30Y network loops extend between controller cards and superloop
network cards in the Common Equipment (CE). They function in a manner
similar to DS-30X loops. See Figure 5 on page 39.
A DS-30Y loop carries the PCM timeslot traffic of a DS-30X loop. Four
DS-30Y network loops form a superloop with a capacity of 128 channels (120
usable timeslots). See Communication Server 1000M and Meridian 1:
Large System Planning and Engineering (553-3021-120) for more
information on superloops.
Card LAN link
Maintenance communication is the exchange of control and status data
between IPE line or trunk cards and the Call Server by way of the NT8D01
Controller card. Maintenance data is transported through the card LAN link.
This link is composed of two asynchronous serial buses (called the Async
card LAN link in Figure 2 on page 32). The output bus is used by the system
controller for output of control data to the line card. The input bus is used by
the system controller for input of line card status data.
553-3001-211 Standard 2.00 September 2004
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Overview Page 35 of 894
A card LAN link bus is common to all of the line/trunk card slots within an
IPE module. This bus is arranged in a master/slave configuration where the
controller card is the master and all other cards are slaves. The module
backplane provides each line/trunk card slot with a unique hardwired slot
address. This slot address enables a slave card to respond when addressed by
the controller card. The controller card communicates with only one slave at
a time.
In normal operation, the controller card continually scans (polls) all of the
slave cards connected to the card LAN to monitor their presence and
operational status. The slave card sends replies to the controller on the input
bus along with its card slot address for identification. In its reply, the slave
informs the controller if any change in card status has taken place. The
controller can then prompt the slave for specific information. Slaves only
respond when prompted by the controller; they do not initiate exchange of
control or status data on their own.
When an IPE line card is first plugged into the backplane, it runs a self-test.
When the self-test is completed, a properly functioning card responds to the
next controller card poll with the self-test status. The controller then queries
for card identification and other status information. The controller then
downloads all applicable configuration data to the line card, initializes it, and
puts it into an operational mode.
Analog line interface units
Once the 8-bit digital voice signal has been received by the analog line card,
it must be converted back into an analog signal, filtered, converted from a
4-wire transmission path to a 2-wire transmission path, and driven onto the
analog telephone line.
Figure 4 on page 36 shows a typical example of the logic that performs these
functions. Each part of the analog line interface unit is discussed in the
following section.
Circuit Card Description and Installation
Page 36
Page 36 of 894 Overview
Figure 4
Typical analog line interface unit block diagram
DS-30X or
SL-1 network
loop
Tx PCM
Rx PCM
CODEC
Variable gain
filters
2-wire
4-wire
conversion
Balancing Network
Impedance
matching
transformer
to
Tip
Line
interface
and
protection
Ring
Off-hook
Ringing
Message
Message
waiting
waiting
Off-hook
detector
Ring voltage
Ringing
circuit
Message
waiting
circuit
–150V dc
553-6153
553-3001-211 Standard 2.00 September 2004
Page 37
Overview Page 37 of 894
Coder/Decoder circuit
The Coder/Decoder (CODEC) performs Analog to Digital (A/D) and Digital
to Analog (D/A) conversion of the line analog voiceband signal to and from
a digital PCM signal. This signal can be coded and decoded using either the
A-Law or the µ-Law companding algorithm.
On some analog line cards, the decoding algorithm depends of the type of
CODEC installed when the board is built. On others, it is an option selected
using a software overlay.
Variable gain filters
Audio signals received from the analog phone line are passed through a
low-pass A/D monolithic filter that limits the frequency spread of the input
signal to a nominal 200 to 3400 Hz bandwidth. The audio signal is then
applied to the input of the CODEC. Audio signals coming from the CODEC
are passed through a low-pass A/D monolithic filter that integrates the
amplitude modulated pulses coming from the CODEC, and then filters and
amplifies the result. On some of the line cards, the gain of these filters can be
programmed by the system controller. This allows the system to make up for
line losses according to the loss plan.
Balancing network
Depending on the card type, the balancing network provides a 600 ¾, 900 ¾,
3COM or 3CM2 impedance matching network. It also converts the 2-wire
transmission path (tip and ring) to a 4-wire transmission path (Rx/ground and
Tx/ground). The balancing network is usually a transformer/analog (hybrid)
circuit combination, but can also be a monolithic Subscriber Line Interface
Circuit (SLIC) on the newer line cards.
Line interface and foreign voltage protection
The line interface unit connects the balancing network to the telephone tip
and ring pairs. The off-premise line card (NT1R20) has circuitry that protects
the line card from foreign voltage surges caused by accidental power line
connections and lightning surges. This protection is necessary if the
telephone line leaves the building where the switch is installed.
The line interface unit has a relay that applies the ringing voltage onto the
phone line. See Figure 4 on page 36. The RSYNC signal from the 20 Hz
Circuit Card Description and Installation
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(nominal) ringing voltage power supply is used to prevent switching of the
relay during the current peak. This eliminates switching glitches and extends
the life of the switching relay.
The off-hook detection circuit monitors the current draw on the phone line.
When the current draw exceeds a preset value, the circuit generates an
off-hook signal that is transmitted back to the system controller.
The message waiting circuit on message waiting line cards monitors the status
of the message waiting signal and applies –150 V dc power to the tip lead
when activated. This voltage is used to light the message waiting lamps on
phones that are equipped with that feature. The high voltage supply is
automatically disconnected when the phone goes off-hook. Newer line cards
can sense when the message waiting lamp is not working and can report that
information back to the system controller.
Digital line interface units
The NT8D02 digital line card provides voice and data communication links
between a switch and modular digital telephones. These lines carry
multiplexed PCM voice, data and signaling information as Time
Compression Multiplexed (TCM) loops. Each TCM loop can be connected to
a Nortel Networks “Meridian Modular Digital” telephone.
The digital line interface card contains one or more digital line interface units.
See Figure 5 on page 39. Each digital line interface unit contains a Digital
Line Interface Circuit (DLIC). The purpose of each DLIC is to demultiplex
data from the DS-30X Tx channel into integrated voice and data bitstreams
and transmit those bitstreams as Bi-Polar Return to Zero, Alternate Mark
Inversion (BPRZ-AMI) data to the TCM loop. It also does the opposite:
receives BPRZ-AMI bitstreams from the TCM loop and multiplexes the
integrated voice and data bitstream onto the DS-30X Rx channel.
The 4-wire to 2-wire conversion circuit converts the 2-wire tip and ring leads
into a 4-wire (Tx and ground and RX and ground) signal that is compatible
with the digital line interface circuit.
TCM loop interfaces
Each digital phone line terminates on the digital line card at a TCM loop
interface circuit. The circuit provides transformer coupling and foreign
553-3001-211 Standard 2.00 September 2004
Page 39
Figure 5
Digital line interface unit block diagram
DS-30X loop
Tx PCM
Rx PCM
1 kHz frame
sync
±15 V dc power supply
Digital
line
interface
circuit
voltage protection between the TCM loop and the digital line interface circuit.
It also provides power for the digital telephone.
4-wire
to
2-wire
conversion
Overview Page 39 of 894
Tip
TCM loop
interface
and
protection
Ring
553-6154
To prevent undesirable side effects from occurring when the TCM loop
interface cannot provide the proper signals on the digital phone line, the
system controller can remove the ±15 V dc power supply from the TCM loop
interface. This happens when either the card gets a command from the
NT8D01 Controller card to shut down the channel, or when the digital line
card detects a loss of the 1 KHz frame synchronization signal.
Each TCM loop interface circuit can service loops up to 3500 ft. in length
when using 24 gauge wire. The circuit allows for a maximum ac signal loss
of 15.5 dB at 256 KHz and a maximum DC loop resistance of 210 ohms.
Signaling
The digital line interface units also contain signaling and control circuits that
establish, monitor, and take down call connections. These circuits work with
Circuit Card Description and Installation
Page 40
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the system controller to operate the digital line interface circuits during calls.
The circuits receive outgoing call signaling messages from the controller and
return incoming call status information to the controller over the DS-30X
network loop.
Analog line call operation
The applications, features, and signalling arrangements for each line interface
unit are configured in software and implemented on the card through software
download messages. When an analog line interface unit is idle, it provides a
voltage near ground on the tip lead and a voltage near –48 V dc on the ring
lead to the near-end station. (The near-end station is the telephone or device
that is connected to the analog line card by the tip and ring leads.) An on-hook
telephone presents a high impedance toward the line interface unit on the
card.
Incoming calls
Incoming calls to a telephone that is connected to an analog line card can
originate either from stations that are local (served by the PBX), or remote
(served through the Public Switched Telephone Network (PSTN)). The
alerting signal to a telephone is 20 Hz (nominal) ringing. When an incoming
call is answered by the near-end station going off-hook, a low-resistance dc
loop is placed across the tip and ring leads (towards the analog line card) and
ringing is tripped. See Figure 6 on page 41.
Outgoing calls
For outgoing calls from the near-end station, a line interface unit is seized
when the station goes off-hook, placing a low-resistance loop across the tip
and ring leads towards the analog line card. See Figure 7 on page 42. When
the card detects the low-resistance loop, it prepares to receive digits. When
the system is ready to receive digits, it returns dial tone. Outward address
signaling is then applied from the near-end station in the form of loop
(interrupting) dial pulses or DTMF tones.
553-3001-211 Standard 2.00 September 2004
Page 41
Figure 6
Call connection sequence – near-end station receiving call
Near-end
Far-end
station
through
PSTN
System
station
Overview Page 41 of 894
Line card unit idle
Alert
Near-end station
off hook
(2-way voice
connection)
Near-end station
on hook
Line card unit idle
Far-end station
on hook
Line card unit idle
Signal/directionState
Ground on tip/
battery on ring
Ringing
Low-resistance loop
High-resistance loop
Ground on tip/
battery on ring
High-resistance loop
Ground on tip/
battery on ring
High-
resistance
loop
High-
resistance
loop
High-
resistance
loop
Remarks
No battery current drawn.
Far-end station goes off hook and
addresses (dials up) near-end station.
The system receives the incoming
call on a trunk and determines that the
call is for a specific unit terminal number
(TN) and assigns message timeslots.
The system applies 20 Hz ringing to
ring lead.
Near-end station goes off hook.
The system detects increase in loop
current, trips ringing, and cuts call
through to near-end station.
If near-end station hangs up first, the
following occurs: Line card detects drop
in loop current. CPU removes timeslot
assignments.
Line card unit is ready for the next call.
If far-end station hangs up first, the
following occurs: The system detects
disconnect signaling from trunk. CPU
removes timeslot assignments. Person
at near-end station recognizes end of
call and hangs up.
Line card unit is ready for the next call.
553-AAA1113
Circuit Card Description and Installation
Page 42
Page 42 of 894 Overview
Figure 7
Call connection sequence – near-end originating call
Near-end
Far-end
station
through
PSTN
System
station
Signal/directionState
High-
Ground on tip/
Line card unit idle
Call request
Outpulsing Near-end station dials number (loop pulsing or
(2-way voice
connection)
Near-end station
on hook
Line card unit idle
battery on ring
Low-resistance loop
Dial tone
Dial tone
Ringback (or busy)
High-resistance loop
Ground on tip/
battery on ring
resistance
loop
Addressing signals
High-
resistance
loop
No battery current drawn.
Near-end station goes off hook. Battery current
is drawn causing detection of off-hook state.
CPU determines unit terminal number (TN) and
assigns message timeslots.
Dial tone is applied to the near-end station from
the system.
DTMF tones).
The system detects start of dialing and
removes dial tone.
The system decodes addressing, routes call, and
supplies ringback tone to near-end station if farend station is on hook. (Busy tone supplied if
far-end station is busy.)
When call is answered, ringback tone is
removed , and call is cut through to far-end
station.
If near-end station hangs up first, the following
occurs: Line card detects drop in loop current.
CPU removes timeslot assignments.
Line card unit is ready for the next call.
Remarks
Far-end station
on hook
Line card unit idle
High-resistance loop
Ground on tip/
battery on ring
High-
resistance
loop
553-3001-211 Standard 2.00 September 2004
If far-end station hangs up first, the following
occurs: The system detects disconnect signaling
from trunk. CPU removes timeslot assignments.
Person at near-end station recognizes end of
call and hangs up.
Line card unit is ready for the next call.
553-AAA1114
Page 43
Overview Page 43 of 894
Message waiting
Line cards that are equipped with the message waiting feature receive
notification that a message is waiting across the Card LAN link (IPE cards).
On cards that drive a message waiting light, the light is turned on by
connecting the ring side of the telephone line to the –150 V dc power supply.
When the line card senses that the telephone has gone off-hook, it removes
the –150 V dc voltage until the telephone goes back on-hook. Line cards that
use an interrupted dial tone to indicate message waiting do nothing until the
receiver is picked up. The line card then interrupts the dial tone at a regular
interval to indicate that a message is waiting.
In both cases, the message waiting indication will continue until the user
checks his or her messages. At that time, the system will cancel the message
waiting indication by sending another message across the Card LAN link or
network loop.
Analog line supervision
Analog line supervision features are used to extend the answer supervision
and disconnect supervision signals when the line card is connected to an
intelligent terminal device (Key system or intelligent pay phone). Two types
of analog line supervision are provided:
• battery reversal answer and disconnect supervision
• hook flash disconnect supervision
Battery reversal answer and disconnect supervision
Battery reversal answer and disconnect supervision is only used for calls that
originate from the terminal device. It provides both far-end answer
supervision and far-end disconnect supervision signals to the terminal device.
In an intelligent pay phone application, these signals provide the information
necessary to accurately compute toll charges.
In the idle state, and during dialing and ringing at the far end, the line card
provides a ground signal on the tip lead and battery on the ring lead. See
Figure 8 on page 45. When the far-end answers, these polarities are reversed.
The reversed battery connection is maintained as long as the call is
established. When the far-end disconnects, the system sends a message that
Circuit Card Description and Installation
Page 44
Page 44 of 894 Overview
causes the line card to revert the battery and ground signals to the normal state
to signal that the call is complete.
Hook Flash disconnect supervision
Hook flash disconnect supervision is only used for incoming calls that
terminate at the terminal device (typically a Key system). See Figure 9 on
page 46. The disconnect signal is indicated by the removal of the ground
connection to the tip lead for a specific length of time. The length of time is
programmed in LD10, and ranges from a minimum of 10 milliseconds to a
maximum of 2.55 seconds. See Software Input/Output: Administration
(553-3001-311) for more information.
Digital line call operation
Digital line call operation is controlled entirely by use of messages between
the digital telephone and the system. These messages are carried across the
TCM loop interface. There is no call connection sequence similar to the one
used for analog telephone line operation.
Lineside T1 call operation
The lineside T1 card’s call operation is performed differently depending on
whether the T1 link is configured to process calls in loop start mode or ground
start mode. Configuration is performed through dip switch settings on the
lineside T1 card.
The lineside T1 card performs calls processing separately on each of its 24
channels. Signaling is performed using the “A/B robbed bit” signaling
standard for T1 communication.
A/B robbed bit signaling simulates standard analog signaling by sending a
meaningful combination of ones and zeros across the line that correlates to
the electrical impulses that standard analog signaling sends. For example, to
represent that an analog line interface unit is idle, the analog line card
provides a ground on the tip lead and –48Vdc on the ring lead. The lineside
T1 card accomplishes the same result by sending its A bit as 0 (translated as
ground on the tip lead) and its B bit as 1 (translated as –48V dc on the ring
lead). However, measuring the voltage of the ring lead on the T1 line would
not return –48V dc, since actual electrical impulses are not being sent.
553-3001-211 Standard 2.00 September 2004
Page 45
Figure 8
Battery reversal answer and disconnect supervision sequence
Overview Page 45 of 894
Far-end
station
Line card unit idle
Call request
Outpulsing Near-end station dials number (loop pulsing or DTMF
(2-way voice
connection)
Near-end station
Line card unit idle
Far-end station
Line card unit idle
Note 1:
System
on hook
on hook
Battery reversal signalling is a supervisory feature that is only used when the near-end station
originates the call.
Line
card
Signal/directionState
Ground on tip/
battery on ring
Low-resistance loop
Dial tone
Addressing signals
Dial tone removed
Ringback (or busy)
Battery on tip/
ground on ring
Battery on tip/
ground on ring
Ground on tip/
battery on ring
Ground on tip/
battery on ring
Ground on tip/
battery on ring
Near-end
station
High-
resistance
loop
Low-
resistance
loop
High-
resistance
loop
High-
resistance
loop
Low-
resistance
loop
High-
resistance
loop
Remarks
No battery current drawn.
Near-end station goes off hook. Battery current is drawn
causing detection of off-hook state. The system
determines unit terminal number (TN) and assigns
message timeslots.
Dial tone is applied to the near-end station from the
system.
tones).
The system detects start of dialing and removes dial tone.
The system decodes addressing, routes call, and supplies
ringback tone to near-end station if far-end station is on
hook. (Busy tone supplied if far-end station is busy.)
When call is answered (either absolute or assumed
answer, as programmed), ringback tone is removed, call
is cut through to far-end station, and battery is reversed
to near-end station for duration of call.
If near-end station hangs up first, a high-resistance loop is
presented to the system.
The system detects drop in loop current, removes timeslot
assignments, sends disconnect signal to far-end station,
and restores normal ground/battery polarity to the nearend station. Line card unit is then ready for the next call.
If far-end station hangs up first, the system detects
disconnect signalling from the far end, removes timeslot
assignments, and restores normal ground/battery polarity
to the near-end station.
Near-end station detects battery reversal and goes on
hook. Line card unit is then ready for the next call.
553-AAA1115
Circuit Card Description and Installation
Page 46
Page 46 of 894 Overview
Figure 9
Hook flash disconnect supervision sequence
Line
Far-end
station
System
card
Near-end
station
Line card unit idle
Call request
Alert
Near-end station
off hook
(2-way voice
connection)
Far-end station
on hook
Near-end
station on hook
Line card unit idle
Signal/directionState
Ground on tip/
battery on ring
Ringing
Low-resistance loop
Ground on tip/
battery on ring
Tip open/
battery on ring
Tip open/
battery on ring
Ground on tip/
battery on ring
High-
resistance
loop
Low-
resistance
loop
Low-
resistance
loop
High-
resistance
loop
High-
resistance
loop
Remarks
No battery current drawn.
Far-end station goes off hook and addresses
(dials up) near-end station. The system
receives the incoming call and determines that
the call is for a specific unit terminal number
(TN) and assigns message timeslots.
The system applies 20 Hz ringing to the ring
lead.
Near-end station goes off hook.
The system detects increase in loop current,
trips ringing, and cuts call through to near-end
station.
When the far-end station hangs up, the
following happens: The system detects
disconnect signalling from the far end, removes
the timeslot assignments, and sends a hook
flash (tip removed from ground) to the near-end
station.
The near-end station responds by going on
hook, presenting a high-resistance loop to the
system.
At the end of the hook-flash interval, the
system returns the tip to ground. The line
card unit is then ready for the next call. (Note 2)
Note 1:
Hook-flash signalling is a supervisory feature that is only used when the far-end station
originates and terminates the call. If the far-end station originates the call but the near-end
hangs up first, a hook flash is not sent.
Note 2:
If the end of the hook-flash interval occurs before the near-end station goes on hook, the
system waits until the near-end station does so before placing the line card unit in the
idle state.
553-3001-211 Standard 2.00 September 2004
553-AAA1116
Page 47
Overview Page 47 of 894
Call operation will be described by categorizing the operation into the
following main states:
• Idle (on-hook)
• Incoming calls
• Outgoing calls
• Calls disconnected by the CO
• Calls disconnected by the telephone
Loop Start Mode
In Loop Start mode , the A and B bits have the following meaning:
Transmit from LTI:A bit = 0 (tip ground on)
B bit = Ringing (0=on, 1=off)
Receive to LTI: A bit = Loop (0=open, 1=closed)
B bit = 1 (no ring ground)
When a T1 channel is idle, the lineside T1 card simulates a ground on the tip
lead and –48Vdc on the ring lead to the terminal equipment by setting its
transmit A bit to 0 and transmit B bit to 1. Accordingly, an on-hook channel
on the terminal equipment simulates an open loop toward the lineside T1
card, causing the lineside T1 card’s receive bits to be set to A = 0 and receive
B = 1.
Incoming calls
Incoming calls to terminal equipment attached to the lineside T1 card can
originate either from stations that are local (served by the PBX), or remote
(served through the PSTN). To provide the ringing signal to a telephone the
lineside T1 card simulates an additional 90V on the ring lead to the terminal
equipment by alternating the transmit B bit between 0 and 1 (0 during ring on,
1 during ring off). When an incoming call is answered by the terminal
equipment going off-hook, the terminal equipment simulates tripping the
ringing and shutting off ringing, causing the lineside T1 card’s receive A bit
to be changed from 0 to 1.
Circuit Card Description and Installation
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Page 48 of 894 Overview
Outgoing calls
During outgoing calls from the terminal equipment, a channel is seized when
the station goes off-hook. This simulates a low-resistance loop across the tip
and ring leads toward the lineside T1 card, causing the lineside T1’s receive
A bit to be changed from 0 to 1. This bit change prepares the lineside T1 to
receive digits. Outward address signaling is then applied from the terminal
equipment in the form of DTMF tones or loop (interrupting) dial pulses that
are signaled by the receive A bit pulsing between 1 and 0.
Call disconnect from far end (PSTN, private network or local
Station)
When a call is in process, the central office may disconnect the call from the
CS 1000S, CS 1000M, and Meridian 1. If the lineside T1 port has been
configured with the supervised analog line (SAL) feature, the lineside T1 card
will respond to the distant end disconnect message by momentarily changing
its transmit A bit to 1 and then returning it to 0. The duration of time that the
transmit A bit remains at 1 before returning to 0 depends upon the setting that
was configured using the SAL. If the terminal equipment is capable of
detecting distant end disconnect, it will respond by changing the lineside T1
card's receive A bit to 0 (open loop).The call is now terminated and the
interface is in the idle (on-hook) state.
For the lineside T1 card to support distant end disconnect in loop start mode,
the following configuration parameters must exist:
• The Supervised Analog Line (SAL) feature must be configured for each
lineside T1 port.
Note: By default, the SAL feature opens the tip side for 750 m/s in loop
start operation. This is configurable in 10 m/s increments.
• For outgoing trunk calls, the trunk facility must provide far end
disconnect supervision.
• In order to detect distant end disconnect for calls originating on the
lineside T1 card, the battery reversal feature within the SAL software
must be enabled. Enabling the battery reversal feature will not provide
battery reversal indication but will only provide a momentary
interruption of the tip ground by asserting the A bit to 1 for the specified
duration.
553-3001-211 Standard 2.00 September 2004
Page 49
• In order to detect distant end disconnect for calls terminating on the
lineside T1 card, the hook flash feature within the SAL software must be
enabled.
• In order to detect distant end disconnect for calls originating and
terminating on the lineside T1 card, both the battery reversal and hook
flash features must be enabled within the SAL software.
Call disconnect from lineside T1 terminal equipment
Alternatively, while a call is in process, the terminal equipment may
disconnect by going on-hook. The terminal equipment detects no loop current
and sends signaling to the lineside T1 card that causes its receive A bit to
change from 1 to 0. The call is now released.
Table 3 outlines the lineside T1’s A and B bit settings in each state of call
processing.
Table 3
Loop Start Call Processing A/B Bit Settings (Part 1 of 2)
Overview Page 49 of 894
Transmit Receive
State
Idle 0 1 0 1
Incoming Calls:
•Idle 0 1 0 1
• Ringing is applied from lineside T1 card 0 1/0 0 1
• Terminal equipment goes off-hook 0 1/0 1 1
• Lineside T1 card stops ringing 0 1 1 1
Outgoing Calls:
•Idle 0 1 0 1
• Terminal equipment goes off-hook 0 1 1 1
Call Disconnect from far end:
Circuit Card Description and Installation
A B A B
Page 50
Page 50 of 894 Overview
Table 3
Loop Start Call Processing A/B Bit Settings (Part 2 of 2)
Transmit Receive
State
• Steady state (call in progress) 0 1 1 1
• Far end disconnects by dropping loop current and lineside T1
card changes Transmit A bit to 1 momentarily.
• Terminal equipment responds causing Receive A bit to
change to 0.
• Lineside T1 responds by changing its Transmit A bit to 0. Call
is terminated and set to idle state.
Call disconnect from terminal equipment:
• Steady state (call in progress) 0 1 1 1
• Terminal equipment goes on-hook causing the Receive A bit
to change to 0. Call is terminated and set to idle state.
A B A B
1 1 1 1
1 1 0 1
0 1 0 1
0 1 0 1
Ground Start Mode
In ground start mode, the A and B bits have the following meaning:
Transmit from LTI:A bit = Tip ground (0=grounded, 1=not grounded)
B bit = Ringing (0=on, 1=off)
Receive to LTI: A bit = Loop (0=open, 1=closed)
B bit = Ring ground (0=grounded, 1=not grounded)
When a T1 channel is idle, the lineside T1 card simulates a ground on the tip
lead and -48V dc on the ring lead to the terminal equipment by setting the
transmit A bit to 1 and transmit B bit to 1. Accordingly, an on-hook telephone
simulates an open loop toward the lineside T1 card, causing the lineside T1
card’s receive bits to be set to A = 0 and B = 1.
553-3001-211 Standard 2.00 September 2004
Page 51
Overview Page 51 of 894
Incoming Calls
Incoming calls to terminal equipment that is connected to the lineside T1 card
can originate either from stations that are local (served by the PBX), or
remote (served through the public switched telephone network). To provide
the ringing signal to the terminal equipment the lineside T1 card simulates the
90V ring signal on the ring lead by alternating the transmit B bit between 0
and 1 (0 during ring on, 1 during ring off), and ground on the tip lead by
setting the transmit A bit to 0. When an incoming call is answered (by the
terminal equipment going off-hook), the terminal equipment simulates
tripping the ringing and shutting off ringing by causing the lineside T1’s
receive A bit to change from 0 to 1. The lineside T1 card responds to this
message by simulating loop closure by holding the transmit B bit constant
at 1.
Outgoing Calls
During outgoing calls from the terminal equipment, a channel is seized when
the terminal equipment goes off-hook, simulating a ground to the ring lead
toward the lineside T1 card by causing the lineside T1’s receive B bit to
change from 1 to 0. In turn, the lineside T1 card simulates grounding its tip
lead by changing the transmit A bit to 0. The terminal equipment responds to
this message by removing the ring ground (lineside T1’s receive B bit is
changed to 1) and simulating open loop at the terminal equipment (lineside
T1’s receive A bit is changed to 0).
Call disconnect from far end (PSTN, private network or local
station
While a call is in process, the far end might disconnect the call. If the lineside
T1 port has been configured with the Supervised Analog Line (SAL) feature,
the lineside T1 will respond to the distant end disconnect message by opening
tip ground. This causes the lineside T1 card to change the transmit A bit to 1.
When the terminal equipment sees the transmit A bit go to 1, it responds by
simulating open loop causing the lineside T1’s receive A bit to change to 0.
The call is terminated and the interface is once again in the idle condition.
For the lineside T1 card to support distant end disconnect in ground start
mode, the following configuration parameters must exist:
• The Supervised Analog Line (SAL) feature must be configured for each
lineside T1 port.
Circuit Card Description and Installation
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Page 52 of 894 Overview
Note: By default, the SAL feature opens the tip side for 750 m/s in loop
start operation. This is configurable in 10 m/s increments.
• In order to detect distant end disconnect for calls originating on the
lineside T1 card, the “battery reversal” feature within the SAL software
must be enabled. Enabling the “battery reversal” feature will not provide
battery reversal indication when a call is answered; it will only provide
battery reversal indication when a call is disconnected.
• In order to detect distant end disconnect for calls terminating on the
lineside T1 card, the “hook flash” feature within the SAL software must
be enabled.
• In order to detect distant end disconnect for calls originating and
terminating on the lineside T1 card, both the “battery reversal” and “hook
flash” features within the SAL software must be enabled.
Call disconnect from lineside T1 terminal equipment
Alternatively, while a call is in process, the terminal equipment may
disconnect by going on-hook, causing the lineside T1’s receive A bit to
change to 0. The lineside T1 card responds to this message by simulating the
removal of ground from the tip by changing its transmit A bit to 1. The call is
now terminated and the interface is once again in the idle condition.
Table 4 outlines the lineside T1’s A and B bit settings in each state of call
processing.
Table 4
Ground Start Call Processing A/B Bit Settings (Part 1 of 2)
Transmit Receive
State
Idle 1 1 0 1
Incoming Calls (to terminal equipment):
•Idle 1 1 0 1
• Ringing is applied from lineside T1 card by simulating ground
on tip lead and ringing on ring lead.
553-3001-211 Standard 2.00 September 2004
A B A B
0 0/1 0 1
Page 53
Table 4
Ground Start Call Processing A/B Bit Settings (Part 2 of 2)
Overview Page 53 of 894
Transmit Receive
State
• Terminal equipment goes off-hook by simulating ground on tip
lead and ringing on ring lead.
Outgoing Calls (from terminal equipment):
•Idle 1 1 0 1
• Terminal equipment goes off-hook. 1 1 0 0
• The lineside T1 simulates grounding its tip lead 0 1 0 0
• Terminal equipment opens ring ground and closes loop 0 1 1 1
Call Disconnect from far end:
• Steady state (call in progress) 0 1 1 1
• The lineside T1 ungrounds tip 1 1 1 1
• Terminal equipment opens loop current 1 1 0 1
Call disconnect from terminal equipment:
• Steady state (call in progress) 0 1 1 1
• Terminal equipment goes open loop current 0 1 0 1
• Lineside T1 card opens tip ground 1 1 0 1
A B A B
0 0/1 1 1
Ground Start Restrictions
If the lineside T1 card is used in ground start mode, certain restrictions should
be considered. Because the system treats the lineside T1 card as a standard
loop start analog line card, the ground start operation of the lineside T1 card
has operational limitations compared to typical ground start interface
equipment relating to start of dialing, distant end disconnect and glare
potential.
Circuit Card Description and Installation
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Page 54 of 894 Overview
Distant end disconnect restrictions
If the SAL feature is not available in the CS 1000 Release 4.0 software, the
lineside T1 card is not capable of indicating to the Customer Premise
Equipment (CPE) when a call has been terminated by the distant end. In this
case, the lineside T1 card will continue to provide a grounded tip indication
(A=0) to the CPE until it detects an open loop indication (A=0) from the CPE,
at which time it will provide an open tip indication (A=1). Therefore, without
SAL software, the lineside T1 card is not capable of initiating the termination
of a call to the CPE.
With the SAL software configured for each lineside T1 line, the lineside T1
card will provide an open tip indication to the CPE when it receives an
indication of supervised analog line from the system. This provides normal
ground start protocol call termination.
Glare restrictions
In telephone lines or trunks, glare occurs when a call origination attempt
results in the answering of a terminating call that is being presented by the far
end simultaneously with the call origination attempt by the near end.
The lineside T1 detects presentation of a terminating call (outgoing to lineside
T1 terminal equipment) by detecting ringing voltage. If application of the
ringing voltage is delayed due to traffic volume and ringing generator
capacity overload, the lineside T1 ground start operation cannot connect the
tip side to ground to indicate the line has been seized by the system.
In ground start mode, glare conditions need to be considered if both incoming
and outgoing calls to the Customer Premise Equipment (CPE) are going to be
encountered. If the system and the CPE simultaneously attempt to use a
lineside T1 line, the system will complete the call termination. It does not
back down and allow the CPE to complete the call origination, as in normal
ground start operation.
If both incoming and outgoing calls are to be handled through the lineside T1
interface, separate channels should be configured in the system and the CPE
for each call direction. This eliminates the possibility of glare conditions on
call origination.
553-3001-211 Standard 2.00 September 2004
Page 55
Voice frequency audio level
The digital pad for lineside T1 card audio level is fixed for all types of call
connection (0 dB insertion loss in both directions), and differs from the
analog line. Audio level adjustments, if required, must be made in the lineside
T1 terminal equipment.
Off-premise line protection
Off-premise applications are installations where the telephone lines are
extended outside the building where the PBX system is housed, but the lines
are not connected to public access facilities. This application is commonly
referred to as a “campus installation.”
In off-premise applications, special protection devices and grounding are
required to protect PBX and telephone components from any abnormal
conditions, such as lightning strikes and power line crosses.
The NT1R20 Off-Premise Station Line card has built-in protection against
lightning strikes and power line crosses. These should be the preferred cards
for an off-premise application. Other cards can be used when external line
protectors are installed.
Overview Page 55 of 894
When using the lineside T1 card for an off-premise or network application,
external line protectors must be installed. Install an isolated type Channel
Service Unit (CSU) as part of the terminal equipment, to provide the
necessary isolation and outside line protection. The CSU should be an FCC
part 68 or CSA certified unit.
Line protectors
Line protectors are voltage-absorbing devices that are installed at the
cross-connect terminals at both the main building and the remote building.
The use of line protectors will ensure that system and telephone components
are not damaged from accidental voltages that are within the limit of the
capacity of the protection device. Absolute protection from lightning strikes
and other stray voltages cannot be guaranteed, but the use of line protection
devices significantly reduces the possibility of damage.
Circuit Card Description and Installation
Page 56
Page 56 of 894 Overview
Nortel Networks has tested line protection devices from three manufacturers.
See Table 5. Each manufacturer offers devices for protection of digital as well
as analog telephone lines.
Table 5
Line protection device ordering information
Device order code
Analog
Line
UP2S-235 UP2S-75 ITW Linx Communication
6AP 6DP Oneac Corporation
ESP-200 ESP-050 EDCO Inc. of Florida
Digital
Line
Manufacturer
201 Scott Street
Elk Grove Village, IL 60007
(708) 952-8844 or (800) 336-5469
27944 North Bradley Road
Libertyville, IL 60048-9700
(800) 553-7166 or (800) 327-8801 x555
1805 N.E. 19th Avenue
P.O. Box 1778
Ocala, FL 34478
(904) 732-3029 or (800) 648-4076
These devices are compatible with 66 type M1-50 split blocks or equivalent.
Consult the device manufacturer if more specific compatibility information is
required.
Line protection grounding
In conjunction with line protectors, proper system (PBX) grounding is
essential to minimize equipment damage. Nortel Networks recommends
553-3001-211 Standard 2.00 September 2004
Page 57
following the grounding connection requirements as described in System
installation (553-3001-210). This requirement includes connecting the
ground for the protection devices to the approved building earth ground
reference. Any variances to these grounding requirements could limit the
functionality of the protection device.
Line and telephone components
Because testing of the line protectors was limited to the line cards and
telephones shown below, only these components should be used for
off-premise installations.
Telephones
• Meridian Modular Telephones (digital)
• Meridian Digital Telephones
• Standard analog (500/2500-type) telephones
Line cards
• NT1R20 Off-Premise Station Line card
• NT8D02 Digital Line card
Overview Page 57 of 894
Trunk cards
• NT8D03 Analog Line card
• NT8D09 Analog Line card with Message Waiting
The following trunk cards are designed using the IPE architecture, and are
recommended for use in all new system designs.
Circuit Card Description and Installation
Page 58
Page 58 of 894 Overview
Each of the trunk cards was designed to fit a specific system need. Use
Table 6 to help select the trunk card that will best meet system needs.
Table 6
Trunk card characteristics
Part
Number
Description Trun ks Trunk Types Architecture
NT8D14 Universal Trunk card 8 CO/FX/WATS trunks*,
direct inward dial trunks,
TIE trunks,
Loop Dial Repeating trunks
Recorded Announcement
trunks,
Paging trunks
NT8D15 E&M Trunk card 4 2-wire E&M trunks,
4-wire E&M trunks,
4-wire DX trunks,
Paging trunks
NTCK16 Generic Central Office
Trunk card
* Central office (CO), Foreign Exchange (FX), and Wide Area Telephone Service (WATS) trunks.
8 CO trunks IPE
NT8D14 Universal Trunk card
The NT8D14 Universal Trunk card is an intelligent four-channel trunk card
that is designed to be used in a variety of applications. It supports the
following five trunk types:
• Central office (CO), Foreign Exchange (FEX), and Wide Area
Telephone Service (WATS) trunks
IPE
IPE
• Direct Inward Dial (DID) trunks
• TIE trunks: two-way Loop Dial Repeating (LDR) and two-way loop
Outgoing Automatic Incoming Dial (OAID)
• Recorded Announcement (RAN) trunks
• Paging (PAG) trunks
553-3001-211 Standard 2.00 September 2004
Page 59
Overview Page 59 of 894
The universal trunk card also supports Music, Automatic Wake Up, and
Direct Inward System Access (DISA) features.
NT8D15 E&M Trunk card
The NT8D15 E&M Trunk card is an intelligent four-channel trunk card that
is designed to be used when connecting to the following types of trunks:
• 2-wire E&M Type I signaling trunks
• 4-wire E&M trunks with:
— Type I or Type II signaling
— Duplex (DX) signaling
• Paging (PAG) trunks
The trunk type and function can be configured on a per port basis. Dialing
outpulsing is provided on the card. Make and break ratios are defined in
software and downloaded by software commands.
NTCK16 Generic Central Office Trunk card
The NTCK16 generic central office trunk cards support up to eight analog
central office trunks. They can be installed in any IPE slot that supports IPE.
The cards are available with or without the Periodic Pulse Metering (PPM)
feature. The cards are also available in numerous countries.
Installation
This section provides a high-level description of how to install and test trunk
cards.
IPE trunk cards can be installed in any IPE slot of the NT8D37 IPE module.
Figure 10 on page 60 shows where an IPE trunk card can be installed in an
NT8D37 IPE module.
When installing trunk cards, these general procedures should be used:
1 Configure the jumpers and switches on the trunk card (if any) to meet the
system needs.
2 Install the trunk card into the selected slot.
Circuit Card Description and Installation
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Figure 10
IPE trunk cards installed in an NT8D37 IPE module
IPEPE Module
PE Pwr Sup Rng Gen
3 Install the cable that connects the backplane connector on the IPE
module to the module I/O panel.
4 Connect a 25-pair cable from the module I/O panel connector to the Main
Distribution Frame (MDF).
5 Connect the trunk card output to the selected terminal equipment at the
MDF.
6 Configure the individual trunk interface unit using the Trunk
Administration program (LD 14) and the Trunk Route Administration
program (LD 16).
Intelligent line cards
Intelligent trunk cards
BRSC
0 2 3 4 5 6 7 Cont 9 11 12 13 15181410
Intelligent line cards
Intelligent trunk cards
NT8D01 Controller Card
Intelligent
Peripheral Equipment
BRSC
Superloop
Shelf
553-6321
Once these steps have been completed, the trunk card is ready for use.
553-3001-211 Standard 2.00 September 2004
Page 61
Operation
This section describes how trunk cards fit into the CS 1000S, CS 1000M, and
Meridian 1 architecture, the buses that carry signals to and from the trunk
cards, and how they connect to terminal equipment. See Table 7 for IPE
parameters.
Host interface bus
Cards based on the IPE bus have a built-in microcontroller. The IPE
microcontroller is used for the following:
• to perform local diagnostics (self-test)
• to configure the card according to instructions issued by the system
processor
• to report back to the system processor information such as card
identification (type, vintage, and serial number), firmware version, and
programmed configuration status.
Table 7
Differences between IPE parameters
Parameter IPE
Overview Page 61 of 894
Card Dimensions 31.75 x 25.4 x 2.2 cm. (12.5 x10.0 x 0.875 in.)
Network Interface DS-30X Loops
Communication Interface card LAN Link
Microcontroller 8031
Peripheral Interface card NT8D01 Controller card
Network Interface card NT8D04 Superloop Network card
Modules NT8D37 IPE module
Intelligent Peripheral Equipment
IPE trunk cards all have a similar architecture. Figure 11 on page 62 shows a
typical IPE trunk card architecture. The various trunk cards differ only in the
number and types of trunk interface units.
Circuit Card Description and Installation
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Figure 11
Typical IPE trunk card architecture
Back-
plane
Con-
troller
card
Front
panel
LED
Card slot
address
Async card
5.12 MHz
frame sync
LAN link
Tx PCM
Rx PCM
clock
1 kHz
Input/output
interface
control
Micro-
controller
Card LAN
interface
DS-30X
interface
PCM
Address/
data bus
PCM
Signaling
and status
Codec
Codec
Trunk
signaling
interface
Trunk
Interface
Unit
Trunk
Interface
Unit
Trunk interface unit power
Tip
Ring
Trunk lines
Tip
Ring
Trunk lines
Control
Control
logic
Power Supplies
553-3001-211 Standard 2.00 September 2004
553-6156
Page 63
Overview Page 63 of 894
The switch communicates with IPE modules over two separate interfaces.
Voice and signaling data are sent and received over DS-30X loops and
maintenance data is sent over a separate asynchronous communication link
called the card LAN link.
Signaling data is information directly related to the operation of the telephone
line. Some examples of signaling commands are as follows:
• off hook/on hook
• ringing signal on/off
• message waiting lamp on/off
Maintenance data is data relating to the setup and operation of the IPE card,
and is carried on the card LAN link. Some examples of maintenance data are
as follows:
• polling
• reporting of self-test status
• CPU initiated card reset
• reporting of card ID (card type and hardware vintage)
• reporting of firmware version
• downloading trunk interface unit configuration
• reporting of trunk interface unit configuration
• enabling/disabling of the DS-30X network loop bus
• reporting of card status
Circuit Card Description and Installation
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DS-30X loops
The interfaces provided by the line and trunk cards connect to conventional
2-wire (tip and ring) line facilities. IPE analog line and trunk cards convert
the incoming analog voice and signaling information to digital form, and
route it to the Common Equipment (CE) CPU over DS-30X network loops.
Conversely, digital voice and signaling information from the CPU is sent over
DS-30X network loops to the analog line and trunk cards where it is
converted to analog form and applied to the line or trunk facility.
IPE digital line cards receive the data from the digital phone terminal as
512 kHz Time Compressed Multiplexed (TCM) data. The digital line card
converts that data to a format compatible with the DS-30X loop, and transmits
it in the next available timeslot. When a word is received from the DS-30X
loop, the digital line card converts it to the TCM format and transmits it to the
digital phone terminal over the digital line facility.
A separate dedicated DS-30X network loop is extended between each IPE
line/trunk card and the controller cards within an IPE module (or the
controller circuits on a network/DTR card in a CE module). A DS-30X
network loop is composed of two synchronous serial data buses. One bus
transports in the transmit (Tx) direction toward the line facility and the other
in the receive (Rx) direction toward the common equipment.
Each bus has 32 channels for pulse code modulated (PCM) voice data. Each
channel consists of a 10-bit word. See Figure 12 on page 65.
Eight of the 10 bits are for PCM data, one bit is the call signaling bit, and the
last bit is a data valid bit. The 8-bit PCM portion of a channel is called a
timeslot. The DS-30X loop is clocked at 2.56 Mbps (one-half the 5.12 MHz
clock frequency supplied by the controller card). Thus, the timeslot repetition
rate for a single channel is 8 kHz. The controller card also supplies a locally
generated 1 kHz frame sync signal for channel synchronization.
Signaling data is transmitted to and from the line cards using the call signaling
bit within the 10-bit channel. When the line card detects a condition that the
switch needs to know about, it creates a 24-bit signaling word. This word is
shifted out on the signaling bit for the associated channel one bit at a time
during 24 successive DS-30X frames. Conversely, when the switch sends
553-3001-211 Standard 2.00 September 2004
Page 65
Figure 12
DS-30X loop data format
Overview Page 65 of 894
DS-30X loop
data words
Frame
sync
5.12 MHz
2.56 MHz
Frame sync
DS-30X loop
data bits
29
W0B7W31DV
SB = SIGNALING BIT DV = DATA VALID
30 31 0 1 2 3 4
W0B6 W0B5 W0B4 W0B3 W0B2 W0B1 W0B0 W0SB W0DV W1B7
553-6151
signaling data to the line card, it is sent as a 24-bit word divided among 24
successive DS-30X frames.
DS-30Y network loops extend between controller cards and superloop
network cards in the common equipment, and function in a manner similar to
DS-30X loops. See Figure 13 on page 66.
Essentially, a DS-30Y loop carries the PCM timeslot traffic of a DS-30X
loop. Four DS-30Y network loops form a superloop with a capacity of 128
channels (120 usable timeslots).
See Communication Server 1000M and Meridian 1: Large System Planning
and Engineering (553-3021-120) for more information on superloops.
Card LAN link
Maintenance communication is the exchange of control and status data
between IPE line or trunk cards and the CE CPU by way of the NT8D01
Controller Card. Maintenance data is transported via the card LAN link. This
Circuit Card Description and Installation
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Figure 13
Network connections to IPE modules
Equipment
(Network)
DS-30Y
NT8D04
loop
Superloop
Network
Card
NT8D37 IPE ModuleCommon
Controller
NT8D01
Card
NT8D14
Universal
Trunk Card
DS-30X
NT8D15
E&M
Trunk Card
NT8D13 PE Module
Large
System
Network
QPC414
Network
Card
loop
QPC659
Dual-Loop
Peripheral
Buffer Card
553-3001-211 Standard 2.00 September 2004
QPC71 E&M
Signaling and
Paging Trunk Card
QPC74 Recorded
Announcement
Trunk Card
QPC250
Release Link
Trunk Card
QPC449
Loop Signaling
Trunk Card
553-6158
Page 67
Overview Page 67 of 894
link is composed of two asynchronous serial buses (called the Async card
LAN link in Figure 11 on page 62). The output bus is used by the controller
for output of control data to the trunk card. The input bus is used by the
controller for input of trunk card status data.
A card LAN link bus is common to all of the line/trunk card slots within an
IPE module (or IPE section of a CE module). This bus is arranged in a master/
slave configuration where the controller card is the master and all other cards
are slaves. The module backplane provides each line/trunk card slot with a
unique hardwired slot address. This slot address enables a slave card to
respond when addressed by the controller card. The controller card
communicates with only one slave at a time.
In normal operation, the controller card continually scans (polls) all of the
slave cards connected to the card LAN to monitor their presence and
operational status. The slave card sends replies to the controller on the input
bus along with its card slot address for identification. In this reply, the slave
informs the controller if any change in card status has taken place. The
controller can then prompt the slave for specific information. Slaves only
respond when prompted by the controller; they do not initiate exchange of
control or status data on their own.
When an IPE line or trunk card is first plugged into the backplane, it runs a
self-test. When the self test is completed, a properly functioning card
responds to the next controller card poll with the self-test status. The
controller then queries for card identification and other status information.
The controller then downloads all applicable configuration data to the line/
trunk card, initializes it, and puts it into an operational mode.
The network card regularly polls the IPE cards during TS0 to see if any of
them has a message to be sent. When an IPE card has a message waiting it
responds to the poll by sending a series of 1s during the next five successive
timeslot 0s. The network card responds by sending a “message send enable”
message (all 1s). The IPE card replies by sending 1, 1, 1, 0, and then the
message in successive timeslot 0s.
Trunk interface unit
Once the 8-bit digital voice signal has been received by the trunk card, it must
be converted back into an analog signal, filtered, and driven onto the analog
Circuit Card Description and Installation
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trunk line through an impedance matching and balance network. The trunk
interface also includes the logic necessary to place outgoing call signaling
onto the trunk, or the logic to connect to special services such as recorded
announcement and paging equipment.
Figure 14 shows a typical example of the logic that performs these functions.
Each part of the trunk interface unit is discussed in the following section.
Figure 14
Typical trunk interface unit block diagram
DS-30X
Network loop
TS0
Variable gain
CODEC
Signaling
logic
filters
2-wire
to
4-wire
conversion
and
balance
network
Isolation
transformer
Tip
Interface
(protection)
Ring
Signaling
leads
(E&M,
DX, etc.)
553-6159
Coder/Decoder circuit
The coder/decoder (codec) performs Analog to Digital (A/D) and Digital to
Analog (D/A) conversion of the line analog voiceband signal to and from a
digital PCM signal. This signal can be coded and decoded using either the
A-Law or the µ-Law companding algorithm. On some trunk cards the
decoding algorithm depends of the type of codec installed when the board is
built. On others, it is an option selected using a software overlay.
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Variable gain filters
Audio signals received from the analog phone trunk are passed through a
low-pass A/D monolithic filter that limits the frequency spread of the input
signal to a nominal 200–3400 Hz bandwidth. The audio signal is then applied
to the input of the codec. Audio signals coming from the CODEC are passed
through a low-pass A/D monolithic filter that integrates the amplitude
modulated pulses coming from the CODEC, and then filters and amplifies the
result.
On some of the trunk cards, the gain of these filters can be programmed by
the system controller. This allows the system to make up for line losses
according to the loss plan.
Balancing network
Depending on the card type, the balancing network is capable of providing
either a 600 ohm or a 900 ohm (or both) impedance matching network. It also
converts the 2-wire transmission path (tip and ring) to a 4-wire transmission
path (Rx/ground and Tx/ground). The balancing network is a transformer/
analog (hybrid) circuit combination.
Signaling circuits
Signaling circuits are relays that place outgoing call signaling onto the trunk.
Signal detection circuits monitor the incoming call signaling.
Control signals
Control signals and logic are provided when the trunk is going to be
connected to special services such as recorded announcement and paging
equipment.
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Serial Data Interface (SDI) cards
The NT8D41BA QSDI paddle board provides four bidirectional
asynchronous serial ports for the system processor, and the QPC841 QSDI
card also provides four. Any device that conforms to the RS-232-C serial
communication standard can be connected to these serial ports.
The QPC513 ESDI card provides two fully synchronous serial ports for the
system processor. The ESDI card communicates using the Link Access
Procedure Balanced (LAP-B) synchronous communication protocol.
The electrical interface uses either standard RS-232-C signals or a special
high-speed interface that combines the high-speed differential interface of the
RS-422-A standard with the handshake signals of the RS-232-C standard.
The RS-232-C interface is normally used when data rates are less than 19.2
Kbps, and the cable length is less than 15.24 m (50 ft). The high-speed
interface is used when the signal rates are greater than 19.2 kbps (up to 64
kbps) and/or when the cable length is greater than 15.24 m (50 ft).
Table 8 shows compatibility between the three SDI cards and the various
switch options.
Table 8
Serial data interface cards
Compatible System Options
Card Ports Port types 51C, 61C 81C
NT8D41BA 4 RS-232-C asynchronous X X
QPC841 4 RS-232-C asynchronous X X
QPC513 2 RS-232-C synchronous or
high-speed synchronous*
*See the section on the QPC513 card in this manual for details on the high-speed interface
X X
The NT8D41BA QSDI paddle board does not have a front panel. It mounts
to the rear of the backplane in the NT5D21 Core/Network module, and does
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Uses
Overview Page 71 of 894
not consume a module slot. The RS-232-C connections are brought out
through special cables to the backplane I/O panel.
The QPC841 Quad SDI card and the QPC513 Enhanced SDI card mount in
standard backplane slots, and their serial interface connectors are located on
the card front panels. A list of the modules that they can be mounted in is
given in the following sections on the individual cards.
Examples of asynchronous devices that can be connected to the system
processor using the NT8D41BA QSDI paddle board and the QPC841 Quad
SDI card are:
• an administration and maintenance terminal
• a background terminal for use in a hotel/motel
• the Automatic Call Distribution (ACD) feature
• the Call Detail Recording (CDR) feature
Examples of synchronous devices that can be connected to the system
processor using the QPC513 Enhanced SDI card are:
Features
• a host computer (DEC, Tandem, for example) using the Meridian Link
communication program
• the Meridian Mail voice-mail option
The NT8D41 QSDI paddle board and the QPC841 QSDI card provide the
following features:
• asynchronous serial data interface ports, each supporting
— RS-232-C interface
— 8–bit ASCII data with parity and stop bit
— Asynchronous, start-stop operation
— Data rates of 150, 300, 600, 1200, 2400, 4800, and 9600 baud
Circuit Card Description and Installation
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— Data terminal equipment (DTE) emulation mode
— Data communication equipment (DCE) emulation mode
• enable/disable switch and LED
• input/output (I/O) device address selectable by on-board switches.
The QPC513 ESDI card provides these features:
• fully synchronous serial data interface ports, each supporting
— RS-232-C or modified RS-422-A interface
— LAPB subset of the HDLC synchronous protocol
— Data rates of 1200, 2400, 4800, 9600, 19200, 48000, 56000, and
— Data terminal equipment (DTE) emulation mode
— Data communication equipment (DCE) emulation mode
• enable/disable switch and LED
• input/output (I/O) device address selectable by on-board switches.
64000 baud
Specifications
This section lists the specifications shared by all of the SDI cards. See the
appropriate section in this document for information specific to any particular
card.
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Overview Page 73 of 894
Power consumption
The SDI cards obtain their power directly from the module backplane. Power
consumption for each of the cards is shown in Table 9.
Table 9
Power consumption
Maximum power consumption
Voltage
+5 VDC ±5% 1.0 Amp 3.0 Amp 1.5 Amp
+12 VDC ±5% 100 mA 50 mA 100 mA
–12 VDC ±5% 100 mA 50 mA 100 mA
NT8D41BA QPC513 QPC841
Environmental
The SDI cards operate without degradation under the conditions listed in
Table 10.
Table 10
Environmental specifications
Specification Operation Storage
Ambient temperature 0° to 50°C;
(32° to 122°F)
Relative humidity
(non-condensing)
Altitude 3500m;
5% to 95% 0% to 95%
(11000 ft)
–55° to +70°C;
(–58° to 158°F)
15000m;
(50000 ft)
Electrostatic discharge
The SDI cards meet the requirements of the IEC 801-2, clause 8.0 procedure.
They can withstand a direct discharge of ±5 to ±20 kV without being
damaged.
Circuit Card Description and Installation
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Electromagnetic interference
The CS 1000S, CS 1000M, and Meridian 1 systems meet the requirements of
FCC Part 15 and CSA C108.8 electromagnetic interference (EMI) standards
as a class “A” computing device. To accomplish this, the SDI cables must exit
the module through EMI filters on the I/O panel.
Reliability
The Mean Time Between Failure (MTBF) for all SDI cards is 55 years at
40°C and 29 years at 55°C.
Installation
To use a serial data interface card in a CS 1000S, CS 1000M, or Meridian 1
system, first install the card in the system, and then configure the system
software to recognize it. These steps are discussed in the following sections.
Instructions for cabling the serial data interface cards to the various system
consoles and peripherals are found in Communication Server 1000M and
Meridian 1: Large System Installation and Configuration (553-3021-210).
Configuring the system software
Once an SDI card has been installed in the system, the system software needs
to be configured to recognize it. This is done using the Configuration Record
program LD 17. Instructions for the Configuration Record program are found
in Software Input/Output: Administration (553-3001-311).
Maintenance
The following maintenance programs are used to maintain individual SDI
asynchronous ports. The program used depends on the application of the port.
• LD 37 Input/Output Diagnostics – Used for system terminal, printer,
background terminal ports, and system monitor status.
• LD 42 Call Detail Recording (CDR) Diagnostic – For checking CDR
links and CDR system terminals.
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Overview Page 75 of 894
The following maintenance program is used to maintain individual SDI
synchronous ports.
• LD 48 Link Diagnostic – For checking Automatic Call Distribution
(ACD) and Meridian Link ports.
Instructions for running the various maintenance programs are found in
Software Input/Output: Administration (553-3001-311). System messages
are interpreted in Software Input/Output: System Messages (553-3001-411).
Circuit Card Description and Installation
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Page 77
86
Page 77 of 894
Circuit card installation
Contents
This section contains information on the following topics:
Card slots — Large System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Circuit card installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Installing a circuit card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Card slots — Large System
The following table in this chapter identifies card slot compatibility in the
following modules:
• NT4N41 Core/Network module required for CS 1000M SG,
CS 1000M MG, Meridian 1 PBX 61C, and Meridian 1 PBX 81C
• NT4N46 Core/Network module required for CS 1000M MG and Option
81C Call Processor PII
• NT6D60 Core/Network module required for the CS 1000M MG and
Option 81C only
• NT8D35 Network module required for CS 1000M MG and Meridian 1
PBX 81C
• NT8D37 Intelligent Peripheral Equipment (IPE) module
required for CS 1000M HG, CS 1000M SG, CS 1000M MG, Meridian 1
Option 51, Meridian 1 PBX 61C, and Meridian 1 PBX 81C
Circuit Card Description and Installation
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Circuit card installation
Table 11
Large System card slots (Part 1 of 4)
Component Large System
A0786611 Call Processor Pentium II® card 81C Core/Net: “CP”
A0810486 Call Processor Pentium II 81C Core/Net: “CP”
NT1P61 Fiber Superloop Network card Core/Net: 0–7
NT1P62 Fiber Peripheral Controller card IPE: “Contr”
NT1R52 Remote Carrier Interface IPE: “Contr”
NT1R20 Off-Premise Station IPE: any slot but “Contr”
NT4D18 Hybrid Bus Terminator Core/Net: between 11 and 12
NT4D19 and NT423 Hybrid Bus Terminator Core/Net: between 0 and 1
NT4D20 and NT422 Hybrid Bus Terminator Core/Net: between 1 and 2
NT4N43 Multi-Medium DIsk Unit 81C Core/Net:
NT4N64 Call Processor Pentium II card 81C Core/Net: “CP”
NT4N65 cPCI® Core to Network Interface card 81C Core/Net: c9–c12
NT4N66 cPCI Core to Network Interface Transition
card
NT4N67 System Utility card 81C Core/Net: c15
NT4N68 System Utility Transition card 81C Core/Net cPCI Core backplane:
NT5D11 and
NT5D14 Line side T1 Line card
NT5D12AA Dual DTI/PRI card Core/Net: 0–7
NT5D61 Input/Output Disk Unit with CD-ROM
(MMDU)
NT5K02 Analog Line card IPE: any slot but “Contr”
NT5K07 Universal Trunk card IPE: any slot but “Contr”
NT5K17 Direct Dial Inward Trunk card IPE: any slot but “Contr”
81C Core/Net cPCI Core backplane: 9–12
IPE: any slot but “Contr”
61C Core/Net: 17, 18 and 19
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Circuit card installation Page 79 of 894
Table 11
Large System card slots (Part 2 of 4)
Component Large System
NT5K18 Central Office Trunk card IPE: any slot but “Contr”
NT5K19 E&M Trunk card IPE: any slot but “Contr”
NT5K35 D-channel Handler Interface Core/Net: 0-7
NT5K36 Direct Inward/Direct Outward Dial Trunk
card
NT5K70 Central Office Trunk card IPE: any slot but “Contr”
NT5K71 Central Office Trunk card IPE: any slot but “Contr”
NT5K72 E&M Trunk card IPE: any slot but “Contr”
NT5K82 Central Office Trunk card IPE: any slot but “Contr”
NT5K83 E&M Trunk card IPE: any slot but “Contr”
NT5K84 Direct Inward Dial Trunk card IPE: any slot but “Contr”
NT5K90 Central Office Trunk card IPE: any slot but “Contr”
NT5K93 Central Office Trunk card IPE: any slot but “Contr”
NT5K96 Analog Line card IPE: any slot but “Contr”
NT5K99 Central Office Trunk card IPE: any slot but “Contr”
NT5K20 Extended Tone Detector IPE: any slot but “Contr”
NT6D65 Core to Network Interface 61C Core/Net: 12
NT6D66 Call Processor card 61C Core/Net: 15 and 16
NT6D70
S/T Interface Line card
Net: 5-12
IPE: any slot but “Contr”
IPE: any slot but “Contr”
NT6D71
U Interface Line card
NT6D72
Basic Rate Signal Concentrator card
IPE: any slot but “Contr”
IPE: any slot but “Contr”
Circuit Card Description and Installation
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Table 11
Large System card slots (Part 3 of 4)
Component Large System
NT6D73
Multi-purpose ISDN Signaling Processor card
NT6D80 MSDL Core/Net: 0–7
NT7D16 Data Access card IPE: any slot but “Contr”
NT7R51 Local Carrier Interface Core/Net: 0–7
NT8D01 Controller card IPE: “Contr”
NT8D02 Digital Line card IPE: any slot but “Contr”
NT8D04 Superloop Network card Core/Net: 0–7
NT8D09 Analog Message Waiting Line card IPE: any slot but “Contr”
NT8D14 Universal Trunk card IPE: any slot but “Contr”
NT8D15 E&M Trunk card IPE: any slot but “Contr”
NT8D16 Digitone Receiver card IPE: any slot but “Contr”
NT8D17 Conference/TDS card Core/Net: 0–7
NT8D41 Dual Port Serial Data Interface card Serial Port back of Core/Net module
NT9D19 Call Processor card 61C Core/Net: 15 and 16
NTAG03 Central Office Trunk card IPE: any slot but “Contr”
NTAG04 Central Office/Direct Inward Dial Trunk
card
Core/Net: 0–7
Net: 5-12
IPE: any slot but “Contr”
NTAG36 Nortel Networks Integrated Recorded
Announcer
NTBK51 Downloadable D-channel daughterboard Connects to DDP card
NTCK16 Generic Central Office Trunk card IPE: any slot but “Contr”
NTCK43AA Primary Rate Interface card Core/Net: 0-7
NTRB33 FIber Junctor Interface card For 81C: Core/Net: 8 and 9, Net module: 2 and 3
IPE: any slot but “Contr”
Net: 5-11, 13-14
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Table 11
Large System card slots (Part 4 of 4)
Component Large System
NTRE39 Optical Cable Management card For 81C: Net module: the slot to the right side of 14,
QPC43 Peripheral Signaling card Core/Net: 10
QPC71 E&M/DX Trunk card IPE: any slot but “Contr”
QPC414 Network card Core/Net: 0–7
QPC441 3-Port Extender card Core/Net: 11
QPC471 Clock Controller card 61C Core/Net: 9
QPC513 Enhanced Serial Data Interface card Core/Net: 9, 13
QPC578 Integrated Services Digital Line card IPE: any slot but “Contr”
QPC659 Dual Loop Peripheral Buffer card IPE: “DLB”
QPC720 Primary Rate Interface card Core/Net: 0–7
QPC775 Clock Controller 61C Core/Net: slot 14.
the slot to the left of the 3PE in slot 1
Net: 4
Net: 5-12
Net: 1
Net: 5 -12
For 81C, use NT8D35 Net slot 13; in QSD39 shelf,
use Net slot 2; in QSD40 shelf, use slot 13
Net: 5–11, 13–14
For 81C use NT8D35 Net slot 13; in QSD39 shelf,
use Net slot 2; in QSD40 shelf, use slot 13.
QPC789 16-Port 500/2500 Message Waiting Line
card
QPC841 4-Port Serial Data Interface card Core/Net: 0-7
IPE: any slot but “Contr”
Circuit Card Description and Installation
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Page 82 of 894 Circuit card installation
Precautions
To avoid personal injury and equipment damage, review the following
guidelines before handling system equipment.
WAR NING
Module covers are not hinged; do not let go of the covers.
Lift covers away from the module and set them out of your
work area.
WAR NING
Circuit cards may contain a lithium battery. There is a
danger of explosion if the battery is incorrectly replaced.
Do not replace components on any circuit card; you must
replace the entire card.
Dispose of circuit cards according to the manufacturer’s
instructions.
To avoid damage to circuit cards from static discharge, wear a properly
connected antistatic wrist strap when you work on system equipment. If a
wrist strap is not available, regularly touch one of the bare metal strips in a
module to discharge static. Figure 15 on page 83 shows the recommended
connection points for the wrist strap and the bare metal strips you should
touch.
Handle circuit cards as follows:
• Unpack or handle cards away from electric motors, transformers, or
similar machinery.
• Handle cards by the edges only. Do not touch the contacts or
components.
• Set cards on a protective antistatic bag. If an antistatic bag is not
available, hand-hold the card, or set it in a card cage unseated from the
connectors.
• Store cards in protective packing. Do not stack cards on top of each other
unless they are packaged.
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Page 83
Circuit card installation Page 83 of 894
• Keep cards installed in the system as much as possible to avoid dirty
contacts and unnecessary wear.
• Store cards in a cool, dry, dust-free area.
Figure 15
Static discharge points
Module
rear
Wrist strap
connection point
Power supply slot
Bare metal strip
Wrist strap
connection point
Module
front
Bare metal strip
553-5000
During repair and maintenance procedures do the following:
• Turn off the circuit breaker or switch for a module power supply before
the power supply is removed or inserted.
• In AC-powered systems, capacitors in the power supply must discharge.
Wait five full minutes between turning off the circuit breaker and
removing the power supply from the module.
• Software disable cards, if applicable, before they are removed or
inserted.
Circuit Card Description and Installation
Page 84
Page 84 of 894 Circuit card installation
• Hardware disable cards, whenever there is an enable/disable switch,
before they are removed or inserted.
• Return defective or heavily contaminated cards to a repair center. Do not
try to repair or clean them.
Installing a circuit card
This procedure provides detailed installation instructions for circuit cards.
DANGER
To avoid personal injury and equipment damage, read all
of the guidelines in “Circuit card installation” on page 78
before you begin installation and follow all guidelines
throughout the procedure.
Procedure 1
Installation
1 Open the protective carton and remove the circuit card from the antistatic
bag. Return the antistatic bag to the carton and store it for future use.
2 Inspect the card components, faceplate, locking devices, and connectors
for damage. If damaged, tag the card with a description of the problem
and package it for return to a repair center.
3 Refer to the work order to determine the module and slot location for the
card.
4 If there is an enable/disable (Enb/Dis) switch on the faceplate, set it to Dis.
5 If there are option switches or jumpers on the card, set them according to
the work order (see “Option settings” on page 99).
CAUTION
System Failure
Incorrectly set switches on common equipment
circuit cards may cause a system failure.
6 Squeeze the ends of the locking devices on the card and pull the tabs
away from the latch posts and faceplate (see Figure 16).
553-3001-211 Standard 2.00 September 2004
Page 85
Figure 16
Installing the circuit card in the card cage
Card locking
device
Tab
Latch post
Circuit card installation Page 85 of 894
Edge of
card cage
Card
guides
553-5002
7 Insert the card into the card aligning guides in the card cage. Gently push
the card into the slot until you feel resistance. The tip of the locking device
must be behind the edge of the card cage (see Figure 16).
8 Lock the card into position by simultaneously pushing the ends of the
locking devices against the faceplate.
Note: When IPE cards are installed, the red LED on the faceplate
remains lit for two to five seconds as a self-test runs. If the self-test
completes successfully, the LED flashes three times and remains lit until
the card is configured and enabled in software, then the LED goes out. If
the LED does not follow the pattern described or operates in any other
manner (such as continually flashing or remaining weakly lit), replace the
card.
Circuit Card Description and Installation
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Page 86 of 894 Circuit card installation
9 If there is an enable/disable switch, set it to Enb.
Note: Do not enable the switch on an NT8D04 Superloop Network card
or QPC414 Network card until network loop cables are installed.
10 If you are adding a voice, conference, or tone and digit loop, press the
manual initialize (Man Int) button on the NT5D03 or the NT5D10 Call
Processor if the card is associated with the active Call Processor:
Note: An initialization causes a momentary interruption in call
processing.
11 If you are installing the card in a working system, refer to the work order
and the Software Input/Output: Administration (553-3001-311) to add the
required office data to the system memory.
12 Go to the appropriate test procedure in “Acceptance tests” on page 87.
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98
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Acceptance tests
Contents
This section contains information on the following topics:
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Conference cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Digitone receiver cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Multifrequency sender cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Multifrequency signaling cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Network cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Tone and digit switch cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Introduction
Test procedures for most circuit cards require that internal and external
cabling be installed. See the appropriate installation document for your
system and Telephones and Consoles: Description, Installation, and
Operation (553-3001-367) for cabling procedures.
Circuit Card Description and Installation
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Conference cards
Procedure 2
Testing conference cards
Use this procedure to test a conference card or to test the conference function
of an NT8D17 Conference/TDS card.
1 Log into the system:
LOGI (password)
2 Request the status of a loop on the conference card:
LD 38
STAT loop
Conference status is formatted as follows:
CNFC n DSBL n BUSY
“n” represents the number of conference groups disabled and busy
CHAN n DSBL n BUSY
“n” represents the number of channels disabled and busy
UNEQ
card is not equipped in the system
DSBL
card is disabled in software
3 If the conference card loop is disabled, enable it.
For an NT8D17 Conference/TDS card, enter:
ENLX loop
(the conference loop is the odd loop of the conference/TDS loop pair)
Note: The conference/TDS card is not enabled automatically when it is
inserted. You must enable the card with the command ENLX. (This
command is used in LD 34 and LD 46 to address even loops and in LD 38
to address odd loops.) Enabling the loops with the command ENLL does
not enable the hardware for the card.
For other than an NT8D17 Conference/TDS card, enter:
ENLL loop
(the conference loop must be an even loop for cards other than the
NT8D17)
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
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Acceptance tests Page 89 of 894
4 Test the conference loop for channel, group, and switching faults:
CNFC loop
If the conference loop passes the tests, the output is OK.
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
5 Prepare the system for a manual conference call on a specified loop:
CNFC MAN loop c
Where “c” is the manual conference group (1-15)
A manual conference test is performed by stepping through conference
channels and groups, listening for noise that indicates a faulty card.
The manual conference test can be performed through a system terminal
or BCS maintenance telephone. If commands are entered from a
maintenance telephone, this telephone automatically becomes part of the
manual conference call.
Only one manual conference call is allowed at one time. A manual
conference consists of only two telephones, where one telephone acts as
a signal source while the other acts as a listening monitor.
After you enter the CNFC command, any two telephones (one may
already be the maintenance telephone) dialing the special service prefix
code (SPRE) and the digits 93 will enter the manual conference call. The
prime directory number (PDN) indicator, if equipped, will light on each
telephone.
Going on-hook takes the telephone out of the manual conference call, and
the test must be restarted.
See LD 38 in the Software Input/Output: Administration (553-3001-311)
for more detailed information on using this command.
6 Test various channels and conference groups audibly with the command
CNFC STEP
When stepping through channels and groups, a clicking followed by
silence is normal. Any distortion or other noises indicates a faulty card.
Once the CNFC STEP command has been entered, entering C on the
system terminal or maintenance telephone steps through the conference
channels. Entering G steps through the conference groups. There are 15
channels per group and 15 groups per conference card.
Entering an asterisk (*) and END stops the test.
Circuit Card Description and Installation
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Again, see “LD 38” in the Software Input/Output: Maintenance
(553-3001-511) for detailed information on using this command.
7 End the session in LD 38:
****
Digitone receiver cards
Procedure 3
Testing digitone receiver cards
Use this procedure to test a Digitone receiver (DTR) card, a DTR
daughterboard, or the DTR function on the NT8D18 Network/DTR card.
Note: The DTR daughterboard connected to a QPC659 Dual Loop
Peripheral Buffer card cannot be assigned when the IPE shelf is used in
single loop mode.
1 Log into the system:
LOGI (password)
2 See if the Digitone receiver to be tested is disabled:
LD 34
STAT
The system responds with the terminal number (TN), or numbers, of any
disabled Digitone receivers.
3 If the Digitone receiver is disabled, enable it:
ENLR l s c uloop, shelf, card, and unit numbers
End of Procedure
4 Test the Digitone receiver:
DTR l s c uloop, shelf, card, and unit numbers
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
5 End the session in LD 34:
****
553-3001-211 Standard 2.00 September 2004
End of Procedure
Page 91
Line cards
Acceptance tests Page 91 of 894
Procedure 4
Testing line cards
Use this procedure to test a line card.
1 Log into the system:
LOGI (password)
2 Perform a network memory test, continuity test, and signaling test on a
specific loop and shelf:
LD 30
SHLF l sloop and shelf numbers
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
3 For a line card on a superloop, perform a signaling test on a specific card
or unit:
UNTT l s c loop, shelf, and card numbers
For the NT8D02 Digital Line card, enter:
UNTT l s c u loop, shelf, card, and unit numbers
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
4 End the session in LD 30:
****
End of Procedure
Circuit Card Description and Installation
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Multifrequency sender cards
Procedure 5
Testing multifrequency sender cards
Use this procedure to test a multifrequency sender (MFS) card or the MFS
function of an NT8D17 Conference/TDS card.
1 Log into the system:
LOGI (password)
2 Test and enable an MFS loop:
LD 46
MFS loop
(on the NT8D17 Conference/TDS card, the TDS/MFS loop is the even
loop of the conference/TDS loop pair)
Note: The conference/TDS card is not enabled automatically when it is
inserted. You must enable the card with the command ENLX. (This
command is used in LD 34 and LD 46 to address even loops and in LD 38
to address odd loops.) Enabling the loops with the command ENLL does
not enable the hardware for the card.
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
3 Access the system from a maintenance telephone; then enter:
LD 46
Give the system approximately 20 seconds to load the program.
See “Communicating with the Meridian 1” in the Software Input/Output:
Administration (553-3001-311) for details on accessing the system from a
maintenance telephone.
4 Obtain 10-second bursts of digits 1 to 9, 0, and 11 to 15 (in that order) for
all digits on the specified loop:
TONE loop ALL
Each burst should sound different. If the bursts do not sound different,
replace the card.
5 End the session in LD 46:
****
553-3001-211 Standard 2.00 September 2004
End of Procedure
Page 93
Multifrequency signaling cards
Procedure 6
Testing multifrequency signaling cards
Use this procedure to test a multifrequency signaling card.
1 Log into the system:
LOGI (password)
2 Test and enable the specified unit:
LD 54
ATST l s c u loop, shelf, card, and unit numbers
If the system response is other than OK, see the Software Input/
Output: Administration (553-3001-311) to analyze the messages.
3 End the session in LD 54:
****
Network cards
Procedure 7
Testing network cards
Use this procedure to test a network card.
1 Log into the system:
LOGI (password)
2 Perform a network memory test, continuity test, and signaling test:
LD 30
LOOP loop can be a specific loop number or ALL
If ALL is specified, all enabled loops (except attendant console loops) and
all shelves on each loop are tested.
Acceptance tests Page 93 of 894
End of Procedure
If only one loop is being tested and it is disabled, enter ENLL loop to
enable and test a network card associated with the specified loop. (This
command cannot enable network cards disabled by LD 32.)
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
Circuit Card Description and Installation
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3 End the session in LD 30:
****
Trunk cards
Use the following procedures to test a trunk card.
Procedure 8
Testing a trunk card using a maintenance telephone
1 Access the system from a maintenance telephone.
See “Communicating with the Meridian 1” in the Software Input/Output:
Administration (553-3001-311) for details on accessing the system from a
maintenance telephone.
2 Test the trunk unit:
LD 36
TRK l s c u loop, shelf, card, and unit numbers
3 If the maintenance telephone is hooked up to a monitor and the system
response is other than OK, see the Software Input/Output: Administration
(553-3001-311) to analyze the messages.
End of Procedure
Procedure 9
Testing a trunk card using a system terminal
1 Log into the system:
LOGI (password)
2 Enter:
LD 36
3 To test a trunk from a remote test center, seize a central office (CO)
monitor trunk:
CALL
or
CALL l s c u
Seize the automatic number identification (ANI) trunk:
TRK l s c u loop, shelf, card, and unit numbers
553-3001-211 Standard 2.00 September 2004
End of Procedure
Page 95
When you see the DN? prompt, enter the directory number (DN) you want
the system to dial.
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
4 End the session in LD 36:
****
5 Test an automatically identified outward dialing (AIOD) trunk card:
LD 41
AIOD l s c loop, shelf, and card numbers
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
6 End the session in LD 41:
****
Tone and digit switch cards
Procedure 10
Testing tone and digit switch cards
Use this procedure to test a tone and digit switch (TDS) card or to test the TDS
function of an NT8D17 Conference/TDS card.
Acceptance tests Page 95 of 894
End of Procedure
1 Log into the system:
LOGI (password)
2 Obtain a list of terminal numbers (TNs) for disabled TDS cards:
LD 34
STAD
3 If the TDS loop to be tested is disabled, enable it.
For an NT8D17 Conference/TDS card, enter:
ENLX loop
(the TDS/MFS loop is the even loop of the conference/TDS loop pair)
Note: The conference/TDS card is not enabled automatically when it is
inserted. You must enable the card with the command ENLX. (This
command is used in LD 34 and LD 46 to address even loops and in LD 38
to address odd loops.) Enabling the loops with the command ENLL does
not enable the hardware for the card.
Circuit Card Description and Installation
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For other than an NT8D17 Conference/TDS card, enter:
ENLL loop
4 Test the TDS loop:
TDS loop
If the system response is other than OK, see the Software Input/Output:
Administration (553-3001-311) to analyze the messages.
5 End the session in LD 34:
****
6 Using a maintenance telephone, log into the system.
See “Communicating with the Meridian 1” in the Software Input/Output:
Administration (553-3001-311) for details on accessing the system using
a maintenance telephone.
7 From the maintenance telephone, enter:
LD#34##
To test outpulsers and channels for the TDS loop, see Table 12 on
page 96 for a sample of the input commands used with the maintenance
telephone. See the Software Input/Output: Administration
(553-3001-311) for all tones that can be tested.
8 Exit LD 34 from the maintenance telephone:
****
End of Procedure
Table 12
TDS tone tests
Dial pad
Input command
BSY#loop## 279#loop## Provides busy tone from TDS loop specified.
C## 2## Removes any active tone.
DIA#loop## 342#loop## Provides dial tone from TDS loop specified.
OVF#loop## 683#loop## Provides overflow tone from TDS loop specified.
RBK#loop## 725#loop## Provides ringback tone from TDS loop specified.
553-3001-211 Standard 2.00 September 2004
equivalent
Description
Page 97
Acceptance tests Page 97 of 894
Table 12
TDS tone tests
RNG#loop## 764#loop## Provides ring tone from TDS loop specified.
**** Exits TDS test program.
Circuit Card Description and Installation
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553-3001-211 Standard 2.00 September 2004
Page 99
154
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Option settings
Contents
This section contains information on the following topics:
Circuit card grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
NT1R20 Off-Premise Station card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
General purpose switch settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
NT6D42 Ringing Generator DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
NT5D2101/NT9D1102 Core/Network module backplane . . . . . . . . . . 115
NT6D68 Core module backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
NT6D80 Multi-purpose Serial Data Link card . . . . . . . . . . . . . . . . . . . 116
NT8D14 Universal Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
NT8D15 E&M Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
NT8D17 Conference/TDS card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
NT8D21 Ringing Generator AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
NT8D22 System Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
NT8D41BA Quad Serial Data Interface Paddle Board. . . . . . . . . . . . . 130
NT8D72 Primary Rate Interface card . . . . . . . . . . . . . . . . . . . . . . . . . . 132
QPC43 Peripheral Signaling card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
QPC71 E&M/DX Signaling and Paging Trunk cards. . . . . . . . . . . . . . 134
QPC414 Network card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
QPC441 3-Port Extender cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
QPC559, QPC560 Loop Signaling Trunk cards . . . . . . . . . . . . . . . . . . 139
Circuit Card Description and Installation
Page 100
Page 100 of 894 Option settings
QPC528 CO/FX/WATS Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . 141
QPC471 Clock Controller card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
QPC525, QPC526, QPC527, QPC777 CO Trunk card . . . . . . . . . . . . 143
QPC550 Direct Inward Dial Trunk card. . . . . . . . . . . . . . . . . . . . . . . . 144
QPC551 Radio Paging Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
QPC595 Digitone Receiver cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
QPC577, QPC596 Digitone Receiver daughterboards . . . . . . . . . . . . . 148
QPC720 Primary Rate Interface card . . . . . . . . . . . . . . . . . . . . . . . . . . 148
QPC775 Clock Controller card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
QPC841 4-Port Serial Data Interface card . . . . . . . . . . . . . . . . . . . . . . 151
Circuit card grid
Some circuit cards contain option switches or jumpers, or both, that define
specific functions. A switch or jumper can be identified by an alphanumeric
coordinate (such as D29) that indicates a location on the card, or by a switch
number (such as SW2) printed on the circuit board (see Figure 17). Positions
on a switch (for example, positions 1, 2, 3, and 4 on SW2) are labeled on the
switch block.
On a circuit card:
• ON may be indicated by the word “on,” the word “up,” the word
“closed,” the number “1,” an arrow pointing up, or a solid dot (•).
• OFF may be indicated by the word “down,” the word “open,” the number
“0,” or an arrow pointing down.
553-3001-211 Standard 2.00 September 2004
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