Nortel SONET AccessNode User manual

P0904244
SONET Products
AccessNode
Modular Business Package VTBM Ring
User Guide
Issue 1.0 June 1999

AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
SONET Products
AccessNode
Modular Business Package VTBM Ring User Guide
Copyright 1996–1999 Northern Telecom, All Rights Reserved.
Printed in Canada
All information contained in this document is subject to change without notice. Northern Telecom reserves the right to make
changestoequipmentdesignorprogramcomponents,asprogressinengineering,manufacturingmethods,orothercircumstances
may warrant.
ACCESSNODE, NORTEL, and NORTEL NETWORKS are trademarks of Northern Telecom.
Document release: Issue 1.0
Date: June 1999

AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
iii
Publication history
June 1999 Release-independent Standard Issue 1.0 of the document.
February 1999 Release-independent Standard release of the document, Issue 1.0. For this
release, the following information was updated or added:
• Added new Cooling Unit NT4K18CA
• Added new Breaker Interface Panel (BIP) NT4K14BA
Note: With the February 1999 release, references to the software release
number (suchas AN15or AN16) havebeen deleted, makingthis document
release-independent. This document will be rereleased only when
technical changes occur.
June 1998 Release-independent Standard 01.01 release of the document.
September 1997
Standard 01.01 AN14 released for general distribution.
July 1996 Standard 01.01AN12releasedforgeneraldistribution.This isanewdocument
that describes the after-service procedures for the modular business package
virtual tributary bandwidth manager master and expansion cabinets.

iv Publication history
AccessNode P0904244 Issue 1.0

AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
v
Contents
About this document ix
Before using this document ix
Additional documentation x
How to use this document x
FCC Part 15.21 radio interference information to the user x
Abbreviations for the colors of conductor insulation in cables xi
Safety guidelines and warnings 1-1
Warnings and safety notices 1-1
Optical fiber cables 1-2
Handing optical fibers 1-3
International electrical symbols on equipment 1-3
Introduction to equipment and cabling configurations 2-1
Chapter contents 2-1
Product description 2-2
OC-12 fiber ring application 2-2
Digital fiber access 2-3
Single-ended 2-5
DS1-fed 2-6
Types of cabinet 2-7
Master cabinet 2-7
Expansion cabinet 2-7
Cabinet arrangement 2-7
Common features of MBP cabinets 2-9
Covers 2-9
Anchoring kits 2-9
Top cap kit 2-9
Grille kit 2-9
Cable extender kit 2-9
Battery equipment module 2-9
Installation in restricted areas and unrestricted areas 2-9
MBP master cabinet configuration 2-10
96- to 192-line master cabinet configuration 2-10
MBP expansion cabinet configuration 2-12
96- to 480-line expansion cabinet configuration 2-12
Powering 2-14
Numbering of equipment shelf and slot positions 2-14
Rectifiers 2-14
ABM shelf 2-15

vi Contents
AccessNode P0904244 Issue 1.0
Copper-distribution shelves 2-16
CDS line drawer slot positions 2-16
Circuit breaker designations 2-17
ABM breaker interface panel (NT4K14BA) circuit breakers 2-17
Battery equipment module circuit breakers 2-18
DC distribution unit circuit breakers 2-18
System expansion 2-19
ABM circuit pack locations 2-20
Cabling diagrams 2-21
Environmental requirements 2-27
Temperature 2-27
Altitude 2-27
Relative humidity 2-27
Atmospheric dust 2-27
Electrostatic discharge (ESD) 2-27
Mechanical shock 2-27
Technical specifications 2-28
Weight 2-28
AC input 2-28
DC power 2-28
Removing covers and grilles 3-1
Chapter contents 3-1
Procedure 3-1 Removing the cabinet covers 3-2
Procedure 3-2 Removing the side panels 3-4
Procedure 3-3 Removing the pedestal grilles 3-6
Procedure 3-4 Removing the top cap grilles 3-8
Procedure 3-5 Removing separator bars 3-10
Procedure 3-6 Removing the ABM shelf cover 3-12
Procedure 3-7 Removing the breaker interface panel cover 3-14
Interpreting an LED or lamp 4-1
Chapter contents 4-1
Top cap LED 4-1
Status of in-service equipment LEDs 4-2
Status of out-of-service equipment LEDs 4-3
Status of failed equipment LEDs 4-4
Replacing modules in a copper-distribution shelf 5-1
Chapter contents 5-1
Procedure 5-1 Replacing the NT4K62 copper-distribution shelf power card 5-3
Procedure 5-2 Replacing the line cards 5-5
Procedure 5-3 Replacing the NT4K70 narrowband line interface card 5-10
Procedure 5-4 Replacing the NT4K73AA or NT4K73CA metallic test access
card 5-13
Replacing modules in a BIP 6-1
Chapter contents 6-1
Procedure 6-1 Replacing the NT4K64BA Alarm relay card 6-2
Procedure 6-2 Replacing the NT4K61BA Talk battery filter card 6-4
Procedure 6-3 Replacing the NT4K1472 BIP LED card 6-6
Procedure 6-4 Replacing a circuit breaker in the BIP 6-15

Contents vii
AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0
Replacing modules in a common-equipment shelf 7-1
Chapter contents 7-1
Procedure 7-1 Replacing an NT4K30 DS3 I/O card 7-3
Procedure 7-2 Replacing an NT4K31 DS1 protection bridge card 7-4
Procedure 7-3 Replacing an NT4K32 DS1 input card 7-7
Procedure 7-4 Replacing an NT4K33 DS1 output card 7-9
Procedure 7-5 Replacing an NT4K50 side interconnect left 7-11
Procedure 7-6 Replacing an NT4K51 side interconnect right 7-13
Procedure 7-7 Replacing an NT4K52 processor card 7-14
Procedure 7-8 Replacing an NT4K53 maintenance interface card 7-17
Procedure 7-9 Replacing an NT4K54 test access card 7-20
Procedure 7-10 Replacing an NT4K55 access interface card 7-22
Procedure 7-11 Replacing an NT4K56 transport interface card 7-24
Procedure 7-12 Replacing an NT4K57 integrated remote test unit 7-26
Procedure 7-13 Replacing an NT4K58LA serial I/O card 7-28
Procedure 7-14 Replacing an NT4K58MA common-equipment power card 7-30
Procedure 7-15 Replacing an NT4K75 timing and cross-connect 7-34
Procedure 7-16 Replacing an NT7E05 OC-12 VTBM optical interface 7-37
Procedure 7-17 Replacing an NT7E04 DS1/VT mapper 7-45
Procedure 7-18 Replacing an NT7E08 DS3 mapper 7-50
Testing the batteries and rectifiers 8-1
Chapter contents 8-1
Warnings and cautions 8-2
Procedure 8-1 Rejuvenating the batteries 8-5
Procedure 8-2 Testing and replacing the batteries 8-8
Procedure 8-3 Replacing a rectifier 8-14
Procedure 8-4 High voltage shutdown adjustments for replacement
rectifiers 8-16
Procedure 8-5 Setting equalize (EQL) voltage level 8-21
Procedure 8-6 Adjusting the float voltage 8-23
Procedure 8-7 Load sharing adjustments for replacement rectifiers 8-25
Replacing the low-voltage disconnect unit 9-1
Chapter contents 9-1
Warnings and cautions 9-2
Procedure 9-1 Removing and installing an LVD 9-3
Procedure 9-2 Restoring power to the system 9-9
Procedure 9-3 Verifying the LVD indicators 9-10
Procedure 9-4 Adjusting the LVD unit 9-13
Procedure 9-5 Adjusting the load sharing 9-16
Procedure 9-6 Return the system to service 9-18
MBP routine maintenance 10-1
Chapter contents 10-1
Routine maintenance intervals 10-1
Procedure 10-1 Checking and adjusting rectifier voltages 10-2
Procedure 10-2 Changing the MBP air filter 10-6
Procedure 10-3 Replacing the NT4K2630 MBP blower module 10-10
Ordering information 11-1
Chapter contents 11-1

viii Contents
AccessNode P0904244 Issue 1.0
MBP VTBM cabinets 11-2
MBP equipment 11-2
Miscellaneous MBP parts 11-3
MBP cables 11-4
Equipment circuit packs and modules 11-9
ABM shelf circuit packs 11-9
Copper-distribution shelf circuit packs 11-12
Breaker interface panel 11-13
Cooling unit 11-13
Related documentation 11-14
Technical support information 12-1
List of acronyms 13-1
Index 14-1