AT&T 75, 75 XE Wiring Manual

Download

Page 1

AT&T System 75

and System 75 XE

Wiring

Printed in U.S.A.

555-200-111

Issue 1, April 1987

Page 2

TO ORDER COPIES OF THIS MANUAL

Call:

Write:

Call:

AT&T Customer Information Center on 800-432-6600 In Canada Call 800-255-1242

AT&T Customer Information Center 2855 North Franklin Road P. O. BOX 19901 Indianapolis, Indiana 46219

TO COMMENT ON THIS MANUAL

The AT&T Document Development Organization

Hot Line:

800-334-0404

In North Carolina Call 919-727-3167

Every effort was made to ensure that the information in this document was complete and accurate at the time of printing. However, information is subject to change. This document will be reissued periodically to incorporate changes.

Published by

The AT&T Documentation Management Organization

Page 3

INTRODUCTION

CONTENTS

Page

ORGANIZATION

Use of Guide

Equipment GENERAL CROSS-CONNECT HARDWARE SELECTION WIRING HARDWARE CHANGES PLANNING

Job Aids

Terminals Site or Satellite Closets Cabling Facilities

1-3 1-3 1-4 1-4 1-7 1-7 1-7 1-8

1-8 1-10 1-10

-i-

Page 4

LIST OF FIGURES

Figure 1-1. Documentation Block Diagram Figure 1-2. System Uniform Wiring Plan Figure 1-3. Sample Uniform Wiring Installation Figure 1-4. Sample Floor Plan With Terminal Locations Marked Figure 1-5. Riser Cable Placement

1-2 1-5 1-6 1-9

1-11

-ii-

Page 5

1. INTRODUCTION

This is one of three documents (Figure 1-1) required for the installation of the System 75 or the System 75 XE. This guide explains the hardware, job planning, equipment ordering, and installation information from:

●

The telephone company network interface up to and including the 25-pair cables that connect directly to the switch and

●

The main equipment room cross-connect field and cabling from this field to the switch cabinet and to the 8-pin modular wall jacks (information outlets).

Unless a statement is made that a topic is strictly for the System 75 or the System 75 XE, all information in this document refers to both systems.

The other two documents required for the installation of the System 75 or System 75 XE are as follows:

AT&T System 75—Installation and Test (555-200-104):

Contains information for installing and testing the System 75 switch and the attendant console. (For continuity purposes, wiring of the attendant console is also covered in this guide.)

AT&T System 75 XE—Installation and Test (555-201-104):

Contains information for installing and testing the System 75 XE switch and the attendant console. (For continuity purposes, wiring of the attendant console is also covered in this guide.)

AT&T System 75 and System 85—Terminal Installation and Test (999-700214IS):

Contains information for the installing and testing of the voice terminals and their associated adjuncts.

1-1

Page 6

Figure 1-1. Documentation Block Diagram

1-2

Page 7

ORGANIZATION

This guide is organized into five sections:

●

SECTION 1—INTRODUCTION

Contains an overview of the system Uniform Wiring Plan and presents general guidelines on hardware selection and manual organization.

●

SECTION 2—Z100-TYPE MODULAR HARDWARE

Contains an explanation of Z100-type and associated hardware, job planning, equipment ordering codes, and how to install the hardware.

●

SECTION 3—110-TYPE HARDWARE

Contains an explanation of 110-type and associated hardware, job planning,

equipment ordering codes, and how to install the hardware.

●

SECTION 4—66-TYPE HARDWARE

Contains an explanation of 66-type and associated hardware, job planning, equipment ordering codes, and how to install the hardware.

●

SECTION 5—GLOSSARY

Contains a brief description of some of the terms used in this guide.

●

SECTION 6—INDEX

Contains a permuted index.

Use of Guide

This guide will be helpful in planning, designing, and installing a cost-effective wiring installation that allows moves, changes, and additions to be made quickly and easily. To make the best use of this guide, take the time to read it thoroughly and become familiar with its contents and organization. For quick access to information needed to answer most questions, simply refer to the table of contents and locate the specific item in question.

To answer questions requiring more information than this guide contains, consult the documents listed previously in this introduction section. If you need additional help, contact the Premises Services Consultant (PSC).

For further technical assistance, the recommended channel for AT&T System Technicians is as follows:

Contact your Field Assistance and Support Team (FAST).

If a satisfactory answer is not obtained from the FAST center, contact your supervisor.

Your supervisor should contact the regional staff, if necessary.

1-3

Page 8

Equipment

Most of the items specified in this guide are available through your local AT&T Information Systems Marketing Branch Office (MBO). However, some common use hardware items may have to be obtained from other sources.

GENERAL

Station wiring has a significant role in today’s customers’ information systems. Technological innovations have enabled both voice and data transmission to be provided through communications system wiring and have simplified wiring by significantly reducing the number of cable pairs required by terminals with enhanced feature options.

This guide provides planning, ordering, and installation guidelines for a system Uniform Wiring Plan (Figures 1-2 and 1-3) using Z100-, 110-type, or 66-type hardware.

The system switch ports for data and voice terminals require three pairs of wire per circuit. Voice terminal adjuncts require an additional pair for remote powering. To provide maximum flexibility for voice terminal changes, rearrangements, and powering, all data and voice terminal information outlets are wired with 4-pair cable. With proper administration, this will allow any terminal to be located at any information outlet.

1-4

Page 9

Figure 1-2. System Uniform Wiring Plan

1-5

Page 10

1-6

Figure 1-3. Sample Uniform Wiring Installation

Page 11

CROSS-CONNECT HARDWARE SELECTION

The following cross-connect hardware for new wiring installations is listed for the system. Following each list item are considerations that should help to determine the appropriate selection.

Z100-Type Hardware

●

Designed particularly for customer participation in cross-connect administration due to patch cord design

Does not require technical skills for cross-connect administration

●

Firm quote price list for all installations up to 150 stations

●

110P Hardware

●

Customer participation in cross-connect administration due to patch cord design

Requires some amount of technical skill for cross-connect administration

●

3. 110A Hardware Not designed for customer participation in cross-connect administration—

●

requires technically skilled personnel due to use of jumper wires

●

Less expensive material cost than the patch cord systems, but more expensive installation and administrative labor cost

66-Type Hardware

● Not designed for customer participation in cross-connect administration—

requires technically skilled personnel due to use of jumper wires

Less expensive material cost than the patch cord systems, but more

●

expensive installation and administrative labor cost

Obviously, the customer’s degree of interest and preference for administering his or her own cross-connections (because of likely lower total annual costs, as well as preference for administering his or her cross-connect field at his or her convenience) should be given primary consideration in recommending cross-connect hardware.

WIRING HARDWARE CHANGES

All jobs engineered by Premises Services Consultants (PSCs) based on customer requirements and preferences should not be redesigned by the Field Services Organization (FSO) without approval by the PSC/Marketing Branch Office (MBO). A change order must be issued to affect billing.

PLANNING

The following brief introductory information will help you design a uniform wiring plan with sufficient growth potential. The plan is flexible, simple, easy to administer, and reasonable in cost.

1-7

Page 12

Job Aids

Blueprints (floor plans) are an important tool when planning, designing, and installing station wiring. The floor plans (Figure 1-4) provide a complete view of all conduit and other cabling facilities placed during construction of the building. These facilities should be considered when planning site or satellite locations and cabling.

Terminals

The number of information outlets to be installed per terminal location should be determined by your requirements. It may also be advantageous to initially install any

additional information outlets that may be required for future growth or terminal rearrangements.

To begin designing the station wiring, indicate the following information on the floor plan(s):

● Location of each information outlet and associated terminal type if known (analog,

hybrid, or digital)

●

Any associated terminal adjuncts or modules and the required powering

arrangements.

1-8

Page 13

* AN OPTION TO THE CABLE DUCT SHOWN IS TO RUN CABLES (PLENUM-APPROVED, IF

APPROPRIATE OR REQUIRED) ABOVE A DROP/FALSE CEILING.

- INFORMATION OUTLET LOCATION

A-

ANALOG TERMINAL DEVICE

H -

HYBRID TERMINAL DEVICE

D -

DIGITAL TERMINAL DEVICE

S-

SURFACE MOUNTED INFORMATION OUTLET

F-

FLUSH MOUNTED INFORMATION OUTLET

1 -

SPEAKERPHONE

2 -

AMPLIFIED HEADSET

3 -

CALL COVERAGE MODULE

4 -

FUNCTION KEY MODULE

5 -

DISPLAY MODULE

Figure 1-4. Sample Floor Plan With Terminal Locations Marked

1-9

Page 14

Site or Satellite Closets

When determining the site or satellite closets, use the following information as a guide. Indicate the locations on the floor plan.

Keep the number of locations to a minimum.

To minimize the station wiring distances, centrally locate the site or satellite

closets among the information outlets. Site or satellite closets should be easily accessible and contain sufficient ac power

outlets. Terminals equipped with adjuncts that require power can be remotely powered from a site or satellite location as well as from the main equipment room or at information outlets. The distance between the power supply and the terminal cannot exceed 250 feet (76.2 m) using 24-gauge wire.

Locks should be provided for the site or satellite closet to prevent tampering.

Cabling Facilities

The method of riser cable distribution between the main equipment room and the site or satellite closets is usually determined by the type of cabling facilities (riser closets, conduit size, cabling shafts, etc.) placed during construction of the building (Figure 1-5).

The preferred arrangement is to have individual cables supply each site or satellite closet.

A second method is to have one or two large cables supply all the site or satellite closets. This method requires smaller cables to be installed between the main riser cable and the site or satellite closet. These smaller cables are spliced into the main cable.

Determine the type of cabling required and mark the type and routing on the blueprint or floor plan. Also indicate any additional cabling facilities required for riser and terminal cabling.

1-10

Page 15

CAUTION:

THE UNIFORM WIRING PLAN SHOULD NOT CONTAIN ANY BRIDGE TAPS (AN UNUSED CABLE PAIR CONNECTED TO A WORKING CABLE OR THE CONTINUATION OF A WORKING PAIR PAST THE POINT AT WHICH A TERMINAL HAS BEEN CONNECTED).

Figure 1-5. Riser Cable Placement

1-11

Page 16

2. Z100-TYPE HARDWARE—SYSTEM 75 AND SYSTEM 75 XE INSTALLATIONS

CONTENTS

Page

GENERAL Z100-TYPE HARDWARE

Connector Modules

Z100A1 Connector Module

Z100B1 Connector Module Connecting Units Cords

ZD6A-87 Patch Cords ZD2A-87-10 Power Adapter Cords

Associated Hardware

Cable Slack Managers

General Z113A Housing Z114A Housing

NETWORK INTERFACES

RJ21X Network Interfaces RJ2GX Network Interfaces

1.544 Mbps Digital Service Interfaces

SNEAK FUSE PANELS

575-4 Sneak Current Fuse Assembly

TRUNK/AUXILIARY FIELD

Cable Access Panels and Emergency Transfer Units

400A Apparatus Mounting 400B Apparatus Mounting 400C Apparatus Mounting

2-1

2-2 2-2 2-4 2-4

2-7 2-10 2-10 2-11 2-12 2-12 2-12 2-13 2-13 2-15 2-15 2-15

2-15 2-15 2-15 2-16 2-17 2-17 2-17 2-17

TRUNK CONCENTRATOR CABLES

WP-90929, List 2, Cable Assembly

WP-90929, List 4, Cable Assembly 16-PORT ANALOG LINE BOARD ADAPTER CABLE 4-PORT MET LINE BOARD CONCENTRATOR CABLE ADJUNCT POWER UNITS

Individual Power Supplies

-i-

2-20 2-20 2-20 2-23 2-24 2-24 2-24

Page 17

Bulk Power Supply

346 Modular Bulk Power Supply

EQUIPMENT ROOM DESIGN

Typical System Equipment Room Floor Plans

General Typical Floor Plans

Single-Section Cross-Connect Field

Mult-Section Cross-Connect Field

Wall Space Requirements

Single-Section Cross-Connect Field Multi-Section Cross-Connect Field

Equipment Requirements

Connector Module, Patch Cord, and Cable Slack Manager Requirements

Cable Access Panel Requirements

Trunk Circuit Capacities Selecting the Cable Access Panel

EQUIPMENT ROOM HARDWARE AND CABLING INSTALLATION

Hardware Installation

Installing the Cross-Connect Field Installing Cable Slack Managers Labeling the Cross-Connect Field

Main Cross-Connect Field Multi-Section Cross-Connect Field

2-26 2-26 2-29 2-29 2-29 2-29

2-29 2-33 2-34 2-34 2-34 2-35

2-35 2-36 2-36 2-36 2-38 2-38 2-38 2-40 2-41 2-42 2-47

Installing the Cable Access Panels (CAPs) Labeling the Cable Access Panel

Installing the Sneak Fuse Panels

Cable Installation

Labels Routing Cable Guidelines

General Routing Cables From Switch Cabinet to Cross-Connect Field

Routing Cables From Cable Access Panel to Switch Cabinet Installing Control Carrier Outputs Cable Installing Trunk Cables Between Network Interface and System

Cabinet Installing Coupled Bonded Conductor Grounding

-ii-

2-50 2-51 2-60 2-60 2-60 2-61 2-62 2-63 2-64 2-65

2-66 2-73

Page 18

Installing Cables Between Switch Cabinet and the Cross-Connect Field

Installing Cables Between Cross-Connect Field and Auxiliary Cabinet

STATION WIRING DESIGN

Description

Information Outlets Station Cables Closets

Site Locations Satellite Locations

Station Circuit Distribution From Equipment Room

4-Pair Station Circuits 3-Pair to 4-Pair Station Circuits

Layout

Locating Information Outlets Locating Satellites and Sites

Adapter Requirements

2-74

2-78 2-78 2-78 2-78 2-78 2-80 2-80 2-82 2-83 2-83 2-83

2-88 2-88 2-88 2-88

Z100A1 Connector Module Requirements Sizing 4-Pair Station Cables (DIW) Sizing 25-Pair and Multiple 25-Pair Station Cables

3-Pair Station Cable Circuits 4-Pair Station Cable Circuits

STATION WIRING AND ASSOCIATED HARDWARE INSTALLATION

Installing the Station Cables Installing Z100-Type Hardware at Satellite Locations

Labeling

Installing the Information Outlets

ADJUNCT POWERING

Adjunct Powering From the Equipment Room Adjunct Powering From Satellite Locations Adjunct Powering From Site Locations Adjunct Powering From Information Outlets

PATCH CORD INSTALLATION AND ADMINISTRATION

Equipment Room Cross-Connect Field

Installing Patch Cords

Removing Patch Cords

2-88 2-88 2-88 2-88 2-89 2-89 2-89 2-92

2-93 2-95 2-96 2-96 2-96 2-96

2-100 2-102 2-105 2-105 2-105

-iii-

Page 19

Installing and Removing Power Adapter Cords

2-106

Satellite Locations

1-Point Administration

2-Point Administration

MISCELLANEOUS WIRING INSTALLATION

Installing Attendant Console Installing Selector Console Installing INADS (Initialization and Administration System) Interface Installing DS1 Tie Trunks

Collocated DS1 Tie Trunks

DS1 Tie Trunks Using 551-Type CSU Installing Customer-Provided Alarm—System 75 XE Only Installing Off-Premises Terminal Wiring Installing Out-of-Building Terminal Wiring

Analog Out-of-Building Terminals

Digital Out-of-Building Terminals

Installing Emergency Transfer Units and Terminals

2-106 2-107 2-107 2-107 2-107 2-111 2-112 2-114 2-114 2-114 2-116 2-116 2-118 2-118 2-119

2-122 574-5 Power Transfer Unit Z1A Emergency Transfer Unit

Installing External Ringing Installing Queue Warning Indicator

AUXILIARY EQUIPMENT INSTALLATION

Auxiliary Equipment Description Installing Loudspeaker Paging and Music-on-Hold Installing Loudspeaker Paging Access—278A Paging Adapter Installing Loudspeaker Paging Access—89A Control Unit

PagePac PAGING SYSTEM

PagePac 20 PagePac VS

PagePac 50/100/200 Installing Music-on-Hold Access Installing Loudspeaker Paging With Background Music Installing Recorded Announcement Equipment

2-122 2-130 2-137 2-138 2-139 2-139 2-140 2-142 2-144 2-146 2-146 2-146 2-146 2-152 2-156 2-157

Digital Announcer Installing Audichron Wake-Up Announcement System—R1V3 Only Installing Dial Dictation Equipment

-iv-

2-161 2-162 2-165

Page 20

Installing 3270 Data Modules

2-166

Installing Processor Data Modules (PDMs)

Installing Applications Processor Interface—System 75 Only Installing Audio Information Exchange (AUDIX) Interface—V3

Only Installing Call Management System (CMS) Interface—V3 Only Installing Distributed Communications System (DCS)—V2 and V3 Property Management System Interface—V3 Only

Installing Customer-Provided Terminal Using Asynchronous Data Units (ADUs)

Installing Station Message Detail Recording Interface

2-168 2-171

2-173 2-173 2-173

2-174

2-174 2-176

-v-

Page 21

LIST OF FIGURES

Figure 2-1 Figure 2-2

Figure 2-3 Figure 2-4 Figure 2-5

Figure 2-6 Figure 2-7

Figure 2-8 Figure 2-9 Figure 2-10 Figure 2-11 Figure 2-12 Figure 2-13 Figure 2-14 Figure 2-15

Figure 2-16

Block Diagram of System 75 or System 75 Reinstallation Station Wiring Alternatives

Z100-Type Support and Panel Z100A1 Connector Module 2-5 Z100B1 Connector Module 2-6 Z100-Type Connecting Units Connecting Unit Installation

Connecting Unit Removal ZD6A-87 Patch Cord 2-11 ZD2A-87-10 Power Adapter Cord 2-12 Cable Slack Managers 2-14 Model 575-4 Sneak Fuse Panel 2-16 Cable Access Panel (400C Apparatus Mounting) Cable Access Panel (Functional Diagram)

Trunk Concentrator Cables (WP-90929, Lists 2 and 4, Cable Assemblies) 2-21

16-Port Analog Line Board Adapter Cable (853B Adapter)

2-1 2-2

2-3

2-8 2-9

2-10

2-18 2-19

2-24

Figure 2-17 Figure 2-18 Figure 2-19 Figure 2-20

Figure 2-21

Figure 2-22

Figure 2-23

Figure 2-24

Figure 2-25

Figure 2-26 Figure 2-27

Individual Power Supplies AC Power Strip 346 Modular Bulk Power Supply 346A1 Power Panel Circuit Breaker Locations Typical Single-Section Cross-Connect Field Installation

(Approximately 288 Station Capacity Illustrated) Typical 2-Carrier System 75 Cabinet or 2-Cabinet System 75 XE Floor

Plan

Typical 5-Carrier System 75 Cabinet or 3- or 4-cabinet System 75 XE Floor Plan

Typical Multi-Section Cross-Connect Field Installation (Approximately 576 Station Capacity Illustrated)

Typical 5-Carrier Cabinet Floor Plan Using a Multi-Section CrossConnect Field

Cross-Connect Field and Cable Access Panel Installation System Label Graphic Symbols and Designation

Nomenclature

2-25 2-25

2-27 2-28

2-30

2-31

2-32

2-33

2-34 2-39

2-41

-vi-

Page 22

Figure 2-28

Cross-Connect Field Layout

2-42 Figure 2-29 Figure 2-30 Figure 2-31 Figure 2-32 Figure 2-33 Figure 2-34 Figure 2-35 Figure 2-36 Figure 2-37

Figure 2-38 Figure 2-39 Figure 2-40 Figure 2-41 Figure 2-42 Figure 2-43

Port Labels

4-Pair Station Appearance Labels 3-Pair Station Appearance Labels Auxiliary Labels Section TIE Labels Clear Plastic Label Holder (188UT1-50 Strip Designation) Control Carrier Outputs (AUXILIARY Label) System Port Circuit Appearances and Trunk Labels System Port Circuit Appearances and Auxiliary Circuit

Labels Z1A Emergency Transfer Unit Labels 574-5 Power Transfer Unit Labels "X" Connector Label 2-60 Equipment Room Cabling Labels 2-61 Self-Stick Label Installation on 25-Pair Cable Connector

Cable Routing Through Cable Slack Manager—1-Cabinet Installation

2-43

2-44 2-45 2-46 2-47

2-51 2-53 2-55

2-56 2-58 2-59

2-61

2-62

Figure 2-44

Figure 2-45 Figure 2-46

Figure 2-47

Figure 2-48 Figure 2-49 Figure 2-50 Figure 2-51

Figure 2-52 Figure 2-53 Figure 2-54 Figure 2-55 Figure 2-56 Figure 2-57

Cable Routing From Switch Cabinet to Cross-Connect Field and Cable Access Panel

Typical Port Cable Installation at Switch Cabinet 2-64 Control Carrier Outputs (AUXILIARY Connector)—System

75 Control Carrier Outputs (AUXILIARY Connector)—System 75

XE System 75 2-Carrier Slot Addresses System 75 5-Carrier Slot Addresses System 75 XE Carrier Slot Addresses Installing Concentrator Cables Between the CAP and the Switch

Cabinet Coupled Bonded Conductor Grounding Installation Connector Module Flex Tab Latch Locations 25-Pair Cable Routing Through Connector Module 4-Pair Single Modular Plug-Ended Station Cable 2-79 Example of Extending 4-Pair Station Cables

258A and BR2580A Adapters 2-81

2-63

2-65

2-66 2-69 2-70 2-71

2-72 2-74

2-76

2-77

2-80

Figure 2-58

356A Adapter

2-82

-vii-

Page 23

Figure 2-59

4-Pair Circuit Distribution and Connectivity from Equipment Room Cross-Connect Field Using Z100A1 Connector Modules

2-83

Figure 2-60

Figure 2-61

Figure 2-62 Figure 2-63

Figure 2-64

Figure 2-65 Figure 2-66 Figure 2-67

Figure 2-68 Figure 2-69

Figure 2-70

3-Pair to 4-Pair Circuit Distribution and Connectivity From Equipment Room (Z100B1 Connector Modules Used at Cross-Connect Field and Z100A1 Connector Modules Used at Satellite Location)

3-Pair to 4-Pair Circuit Distribution and Connectivity From Equipment Room (Z100B1 Connector Modules Used at Cross-Connect Field and 356A adapter Used at Site Location)

25-Pair Station Cable Labels Multiple 25-Pair Station Cable With Factory-Installed Staggered

Fingers Connected to a Connector Module

4-Pair Station Wiring Labeling From Equipment Room to Information

Outlet

Typical Satellite Installation

Satellite Location Layout

3-Pair to 4-Pair Station Wiring Labeling From Equipment Room to

Information Outlet

Typical 8-Pin Modular Information Outlets

Remote Powering From a Z100A1 Connector Module Located at the

Equipment Room or Satellite Location

Remote Powering From a 258A Adapter in a Site Closet

2-84

2-85 2-89

2-90

2-91 2-92

2-93

2-94 2-95

2-97

2-98 Figure 2-71 Figure 2-72

Figure 2-73

Figure 2-74 Figure 2-75 Figure 2-76 Figure 2-77 Figure 2-78 Figure 2-79

Figure 2-80 Figure 2-81 Figure 2-82

Figure 2-83 Figure 2-84

Remote Powering From a 356A Adapter in a Site Closet Typical Local Powering From a 400B2 Adapter—Flush-Mounted

Information Outlet Typical Local Powering From a 400B2 Adapter—Surface-Mounted

Information Outlet Port Assignment Record Form 1-Point Administration 2-Point Administration Patch Cord Plug Release Tab Removal Location Connections for Attendant Console Wiring Required at Cable Access Panel for Attendant Console Remote

Powering From Switch Cabinet—System 75 Only Selector Console Installation Connections at Cable Access Panel for INADS Trunk Connections for DS1 Tie Trunks Between 2 System 75s or System 75

XEs Connections for DS1 Tie Trunks Using 551 T1 CSU Connections for Off-Premises Terminals

2-99

2-100

2-101 2-103 2-104 2-104 2-107 2-109

2-110 2-111 2-113

2-115 2-115 2-117

Figure 2-85

Connections for One to Eight Out-of-Building Analog Voice Terminals Only

-viii-

2-120

Page 24

Figure 2-86

Connections for Each Group of Eight Out-of-Building Analog Voice

Terminals

2-121 Figure 2-87 Figure 2-88

Figure 2-89

Figure 2-90

Figure 2-91

Figure 2-92

Figure 2-93

Figure 2-94

Figure 2-95

Figure 2-96 Figure 2-97

574-5 Power Transfer Unit Option Switches Connections at Cable Access Panel for Voice Terminal Used Only for

Emergency Transfer—574-5 Power Transfer Unit Connections at Cable Access Panel for Voice Terminal Used for

Emergency Transfer and as Normal Extension—574-5 Power Transfer Unit

Connections at Cable Access Panel for Optional DID Make-Busy Trunk—574-5 Power Transfer Unit

Connections at Cable Access Panel for Voice Terminal Used Only for Emergency Transfer (Ground Start Trunks)—Z1A Emergency Transfer Unit

Connections at Cable Access Panel for Voice Terminal Used for Emergency Transfer and as Normal Extension (Ground Start Trunks—Z1A Emergency Transfer Unit)

Connections at Cable Access Panel for Optional DID Make-Busy Trunk—Z1A Emergency Transfer Unit

Ground Wiring Example (Three Voice Terminals Used Only for Emergency Transfer)

Ground Wiring Example (Five Voice Terminals Used for Emergency Transfer and as Normal Extensions)

Ground Start Key Installation Connections for External Ringing or Queue Warning

Indicator

2-123

2-125

2-127

2-129

2-131

2-133

2-135

2-136

2-137

2-138 Figure 2-98 Figure 2-99

Figure 2-100 Figure 2-101 Figure 2-102 Figure 2-103 Figure 2-104

Figure 2-105 Figure 2-106

Figure 2-107

Figure 2-108

Figure 2-109

Connections for Loudspeaker Paging and Music-on-Hold Connections for Loudspeaker Paging Zone—278A Paging

Adapter Connections for Loudspeaker Paging Zone—89A Control Unit Connections for PagePac 20 Without Zone-Mate 9 or 39 Connections for PagePac 20 With Zone-Mate 9 or 39 Connections for PagePac VS Connections for PagePac 50/100/200 Amplicenter Only Connections for PagePac 50/100/200 System Connections for FCC Registered Equipment Provided for Music-on-

Hold/Dial Dictation Equipment (Auxiliary Access) Connections for Non-FCC Registered Equipment Provided for Music-

on-Hold/Dial Dictation Equipment (Auxiliary Access) Loudspeaker Paging With Background Music Connections—278A

Adapter

Loudspeaker Paging With Background Music Connections—89A Control Unit

2-141

2-143

2-145

2-147

2-148

2-149

2-150

2-151

2-153

2-155

2-156

2-157

-ix-

Page 25

Figure 2-110

Connections for FCC Registered Equipment Provided for Recorded Announcement/Dial Dictation Equipment (Analog Access)

2-158

Figure 2-111

Figure 2-112

Figure 2-113

Figure 2-114

Figure 2-115

Figure 2-116 Figure 2-117

Figure 2-118

Figure 2-119

Figure 2-120 Figure 2-121

Connections for Non-FCC Registered Recorded Announcement/Dial Dictation Equipment (Analog Access)

Connections to Digital Announcer Located in Auxiliary Cabinet

Connections for Analog Line Port to Wake-Up Announcement Unit

Connections for Auxiliary Trunk Circuit Pack to Wake-Up Announcement Unit

Connections for Power Unit to Wake-Up Announcement Unit

Connections for 3270A or 3270T Data Module Connections for 3270C Data Module Connections for PDMs in Data Mounting—Through Cable Access

Panel Connections for PDMs in Data Mounting—Through Cross-Connect

Field Connections for Individual PDMs Connections at Cable Access Panel for Applications Processor

Alarms

2-160

2-162

2-164

2-164 2-165

2-167 2-167

2-169

2-170 2-171

2-172

Figure 2-122

Figure 2-123 Figure 2-124

Figure 2-125

Connections to ADU for Data Terminal Equipment (R1V2 or R1V3)

SMDR Cabling for Data Terminal Equipment SMDR Cabling for On-Premises Data Communications

Equipment SMDR Cabling for a Remote Host

2-175 2-176

2-177 2-177

-x-

Page 26

LIST OF TABLES

TABLE 2-A WP-90929, List 2, Cable Assembly Wiring TABLE 2-B WP-90929, List 4, Cable Assembly Wiring TABLE 2-C Individual Power Supply Adjunct and Distance Limitations

TABLE 2-D 346A Power Unit Adjunct and Distance Limitations TABLE 2-E Z100 Cross-Connect Hardware Requirements TABLE 2-F Carrier Lead Appearance on Connector TABLE 2-G System Wiring

2-22 2-23 2-26

2-28 2-35 2-67 2-86

-xi-

Page 27

Z100-TYPE HARDWARE

2. Z100-TYPE HARDWARE—SYSTEM 75 OR SYSTEM 75 XE INSTALLATIONS

GENERAL

Figure 2-1 shows the equipment required to install a System 75 or System 75 XE. A description and explanation of each piece of equipment follows. Ordering information is provided at the end of each description.

The sites shown in Figure 2-1 are physical locations (closets) for pass-through connections where adjunct power may be applied. The satellite is a physical location (closet) where

cross-connect administration can take place and adjunct power may be applied.

PROVIDED BY THE CABLE ACCESS PANEL (CAP), 110-TYPE HARDWARE OR 66-TYPE HARDWARE

Figure 2-1. Block Diagram of System 75 or System 75 XE Installation

2-1

Page 28

Z100-TYPE HARDWARE

As shown in Figure 2-1, Z100-type hardware is used for the cross-connect field and for optional satellite locations. The Z100 hardware consists of the following:

●

Connector Modules Connecting Units

●

Cords (Anti-Snag Modular Plug-Ended Patch Cords and Power Adapter Cords).

●

Hard-wired (punch-down) connections are not used with the Z100 hardware unless field-

applied 25-pair connectors, modular plugs, or external "junction boxes" (punch-down to 50pin miniature ribbon connector) are used (see Figure 2-2).

Figure 2-2. Station Wiring Alternatives

Connector Modules

Connectorized 25-pair cables terminate on the connector modules. Anti-snag modular plugended patch cords are used to cross-connect the circuits.

The connector modules are preassembled. Each connector module is 5 inches (12.7 cm) wide and approximately 44 inches (111.8 cm) high. The hardware making up the assembly consists of one Z9A support, one Z2A jack panel, seven connecting units, seven Z5A retainers, and one MET/RJ25C connector adapter (test jack).

2-2

Page 29

Z100-TYPE HARDWARE

Figure 2-3 shows the connector module support and jack panel. The support has tabs that allow adjacent connector modules to snap and interlock together to form cross-connect fields. An additional support is required for each cross-connect filed to provide a patch cord guide for the last connector module in the field.

Figure 2-3. Z100-Type Support and Panel

The connecting units and Z5A retainers are located inside the jack panel. The Z5A retainers located at the back of the jack panel snap closed to lock the mating connectors of the 25-pair cables in place.

2-3

Page 30

Z100-TYPE HARDWARE

The MET/RJ25C connector adapter (test jack) is located at the top of the Z9A support. An anti-snag modular plug-ended patch cord can be plugged from it into the port jack and a terminal connected to the station jack to test either a circuit coming from the switch or the terminal.

There are two preassembled Z100-type connector modules available with connecting units. The connector modules are identical except for the connecting units provided.

Z100A1 Connector Module

The Z100A1 connector module (see Figure 2-4) contains four Z200A1 connecting units and three Z201A1 connecting units. The Z100A1 connector module is used at either the crossconnect field or at satellite locations when 4-pair station circuits are provided from the equipment room or satellite closet to the station wiring. Each Z100A1 connector module has a capacity of twenty-four 4-pair station circuits and twenty-four 3-pair port or station circuits.

Z100B1 Connector Module

The Z100B1 connector module (see Figure 2-5) contains four Z203A1 connecting units and three Z201A1 connecting units. The Z100B1 connector module is used at the cross-connect field when 3-pair station circuits are provided from the equipment room to the station wiring. Each Z100B1 connector module has a capacity of thirty-two 3-pair station circuits and twenty-four 3-pair port circuits. This connector module may also be used if connections are required for off-premises stations in an otherwise 4-pair station cross-connect field arrangement.

The following is a listing of ordering information for the connector modules. Ordering information for the individual connecting units is provided under the heading Connecting Units in this manual.

CONNECTOR MODULE ORDERING INFORMATION

Description

Z100A1 Connector Module

Z100B1 Connector Module Z2A Jack Panel

Z5A Retainer Z9A Support MET/RJ25C Connector Adapter

Comcode

103 961 157

103 961 165

103 961 231 103 961 215 103 961 249 403 826 928

2-4

Page 31

Z100-TYPE HARDWARE

Figure 2-4. Z100A1 Connector Module

2-5

Page 32

Z100-TYPE HARDWARE

2-6

Figure 2-5. Z100B1 Connector Module

Page 33

Z100-TYPE HARDWARE

Connecting Units

The four connecting units (Figure 2-6) that can be used in the connector modules are as

follows:

● Z200A1—Used for connectorized station cables (4-pair station circuits from

equipment room or satellite locations). Z201A1—Used in the cross-connect field for the connectorized switch cables and in

●

satellite locations for connectorized station cables (3-pair station circuits from the equipment room).

Z202A1—Used for Standard Serial Interface (SSI) port circuits from an Applications

●

Processor (AP) to data terminals only.

●

Z203A1—Used for connectorized station cables (3-pair station circuits from the equipment room).

The Z202A1 connecting unit is not available in the preassembled connector modules. It can be used as a replacement in the Z100A1 or Z100B1 connector modules. Figures 2-7 and 2-8 show how the connecting units are installed and removed.

CONNECTING UNIT ORDERING INFORMATION

Description

Z200A1 Connecting Unit

Z201A1 Connecting Unit

Z202A1 Connecting Unit

Z203A1 Connecting Unit

Comcode

103 961 256

103 961 264

103 961 272

103 961 280

2-7

Page 34

Z100-TYPE HARDWARE

(USED WITH SSI CIRCUITS ONLY)

Figure 2-6. Z100-Type Connecting Units

2-8

Page 35

Z100-TYPE HARDWARE

NOTE:

HOLD Z5A RETAINER OUT OF THE WAY WHILE INSERTING (OR REMOVING) CONNECTING UNIT.

Figure 2-7. Connecting Unit Installation

2-9

Page 36

Z100-TYPE HARDWARE

PUSH CONNECTING UNIT OUT WHILE PRYING JACK PANEL SLIGHTLY OPEN WITH SCREWDRIVER.

Figure 2-8. Connecting Unit Removal

Cords

ZD6A-87 Patch Cords

The ZD6A-87 patch cords (Figure 2-9) equipped with 3-pair anti-snag modular plugs are used with the connector modules to provide cross-connections. This 3-pair patch cord can be connected to both the 3- and 4-pair jacks on connecting units. Four patch cord lengths are available. The lengths are identified by the color of the molded plastic modular plugs on each end and can be ordered as follows (see Note):

Note: See Equipment Requirements for additional patch cord ordering quantities.

2-10

Page 37

PATCH CORD ORDERING INFORMATION

Z100-TYPE HARDWARE

Cord

ZD6A-87 ZD6A-87 ZD6A-87 ZD6A-87

Modular Plug

Color

Length

Clear 7 ft (2.1 m) Yellow Blue Black

10 ft (3.0 m) 12 ft (3.7 m) 14 ft (4.3 m)

Comcode

(1 per package)

103 944 872 103 944 898 103 944 914 103 944 948

Figure 2-9. ZD6A-87 Patch Cord

ZD2A-87-10 Power Adapter Cords

The ZD2A-87-10 power adapter cord (Figure 2-10) connects an adjunct power supply to a 4pair jack on a Z100A1 connector module located at the equipment room or at a satellite location. One end of the power adapter cord consists of a 1-pair 10-foot (3.0-m) cable equipped with a 6-conductor modular anti-snag plug that connects to the power supply. The other end is a combined 8-conductor anti-snag plug/6-conductor jack adapter that connects to the 4-pair jack.

POWER ADAPTER CORD ORDERING INFORMATION

Cord

ZD2A-87-10

Comcode

(1 per package)

103 944 856

2-11

Page 38

Z100-TYPE HARDWARE

Figure 2-10. ZD2A-87-10 Power Adapter Cord

Associated Hardware

Cable Slack Managers

General

The cable slack managers (Figure 2-11) are raised floor units 32 inches (81.3 cm) wide, 38 inches (96.5 cm) deep, and 4.5 inches (11.4 cm) high. The cable slack managers are used for cable distribution and cable slack storage between the system cabinets and the cross-connect field. They can also accommodate a limited amount of slack in station cables. Power cables from the system cabinets are also run through/from the cable slack managers.

Note: Cable slack managers are not required when the switch cabinet is installed on a raised computer floor. The station cables and the cables from the system cabinets are routed under the computer flooring to the cross-connect field.

The cable slack managers have tabs and interlocks that allow adjacent cable slack managers to interlock together. Retainers mounted on columns inside the cable slack managers keep the cables from protruding above the top of the base. The cable slack managers are coded as housings and are available as follows.

2-12

Page 39

Z100-TYPE HARDWARE

Z113A Housing

The Z113A housing is used between the wall and equipment cabinets (Switch, Applications

Processor, Auxiliary, etc.). It consists of a Z8A1 base, two Z814A covers, and 25 Z6A

retainers.

Z114A Housing

The Z114A housing is designed to be used adjacent to the Z113A housing if no equipment cabinet exists at the position or if the cabinet(s) is positioned against the wall with the cross-connect field beside the cabinets(s). It consists of a Z8A1 base, one Z814A cover, one Z815A cover, and 25 Z6A retainers.

CABLE SLACK MANAGER ORDERING INFORMATION

Description

Z113A Housing

Z114A Housing

Z8A1 Base Z814A Cover Z815A Cover Z6A Retainer

Comcode

103 961 322

103 961 330

103 965 133 103 965 141 103 965 158 103 965 166

2-13

Page 40

Z100-TYPE HARDWARE

2-14

Figure 2-11. Cable Slack Managers

Page 41

Z100-TYPE HARDWARE

NETWORK INTERFACES

RJ21X Network Interfaces

The RJ21X network interfaces are the connection points between the local telephone

company lines (1-pair trunks) and the system. The interfaces are supplied and installed by the local telephone company.

RJ2GX Network Interfaces

The RJ2GX network interfaces are the connection points between the local telephone company tie-trunks and the system three-pair tie-trunks. The interfaces are supplied and installed by the local telephone company.

1.544 Mbps Digital Service Interfaces

The 1.544 Mbps (Megabits per second) digital service interfaces are the connection points between the local telephone company T1 carrier lines and the system DS1 tie trunks. The interfaces are supplied and installed by the local telephone company.

SNEAK FUSE PANELS

575-4 Sneak Current Fuse Assembly

Sneak current protection is required between the RJ21X or RJ2GX network interface and the switch. The Model 575-4 Sneak Current Fuse Assembly (Figure 2-12), or equivalent, is recommended for sneak current protection. The panel is connectorized in and out and equipped with 25 two-pair fuse modules. Connectorized (B25A) cables connect the network interface to the sneak fuse panel. 157B Connecting Blocks equipped with SCP-1 protectors may also be used for sneak current protection.

SNEAK FUSE PANEL ORDERING INFORMATION

Description

157B Connecting Block

Protector, SCP-1*

575-4 Sneak Current Fuse Assembly

Fuse Module—25A xxxxxx

Comcode

403 613 003

403 617 632

xxxxxx

The SCP-1 Protectors must be ordered separately and installed on the 157B Connecting Block. Twenty-four protectors are required per block.

2-15

Page 42

Z100-TYPE HARDWARE

Figure 2-12. Model 575-4 Sneak Fuse Panel

TRUNK/AUXILIARY FIELD

The trunk/auxiliary field, located between the sneak current protectors and the switch, primarily provides access to the trunk circuits for testing. The Z100 hardware can use cable access panels (CAPs), ll0-type hardware, or 66-type hardware for the trunk/auxiliary field.

2-16

Page 43

Z100-TYPE HARDWARE

This section of the document only covers using the cable access panels (CAPs) for the trunk/auxiliary field (Figure 2-13). If 110-type or 66-type hardware is used as the trunk/auxiliary field, refer to Section 3 or 4 of this manual.

Cable Access Panels and Emergency Transfer Units

Figure 2-14 is a functional diagram of the cable access panel (CAP). As shown in Figure 214, 25-pair connectors on each side of the CAP are wired to 110-type terminals located in the center of the panel. Five connectors on each side of the CAP provide a pass-through connection for five 25-pair cables. An additional connector is provided on the left side for the Emergency Transfer feature.

The connectors on the left side of the panel are labeled DISTRIBUTION CABLES: the cables on the right side are labeled CABINET CABLES. Factory-installed straps on the 110-type terminals connect the distribution side connectors to the cabinet side connectors.

CAPs are available with or without a power failure transfer unit mounted inside at the top of the panel. They are coded as apparatus mountings and are available as described below.

400A Apparatus Mounting

The 400A apparatus mounting is not equipped with an emergency transfer unit. It is used when the customer does not require the Emergency Transfer feature. It can also be used when more than one CAP is required and/or the emergency transfer units are mounted outside the CAP.

400B Apparatus Mounting

The 400B apparatus mountings equipped with a Z1A Emergency Transfer Unit. The Z1A unit provides emergency transfer connections for six analog (only) voice terminals to six trunks. If the central office trunks require ground start, a ground start switch must be installed on each voice terminal used for emergency transfer service.

400C Apparatus Mounting

The 400C apparatus mounting is equipped with a 574-5 Power Transfer Unit. The 574-5 unit provides emergency transfer connections for five analog (only) voice terminals to five trunks. This unit provides automatic ground start.

CABLE ACCESS PANEL ORDERING INFORMATION

Description

400A Apparatus Mounting

400B Apparatus Mounting

400C Apparatus Mounting

Z1A Emergency Transfer Unit

Comcode

103 969 663

103 969 671

103 969 689

103 961 363

574-5 Power Transfer Unit

(With Automatic Ground Start)

Apparatus Mounting Door

403 890 940 844 176 164

2-17

Page 44

Z100-TYPE HARDWARE

2-18

Figure 2-13. Cable Access Panel (400C Apparatus Mounting)

Page 45

Z100-TYPE HARDWARE

Figure 2-14. Cable Access Panel (Functional Diagram)

2-19

Page 46

Z100-TYPE HARDWARE

TRUNK CONCENTRATOR CABLES

Trunk concentrator cables are used for the following purposes:

Match 1-pair local telephone company trunks to 3-pair circuits that connect to the

●

switch.

●

Match 1-pair local telephone company trunks provided for off-premises lines to 3-pair circuits that connect to the cross-connect field.

●

Split eight 3-pair analog tie trunks into two groups of four 3-pair tie trunks that

connect to the switch

The trunk concentrator cables are 25 feet (7.6 m) in length. They are coded as cable assemblies and are available as described below.

WP-90929, List 2, Cable Assembly

The WP-90929, List 2, Cable Assembly (Figure 2-15 and Table 2-A) is used to connect local

telephone company trunks to the system switch. It is also used to connect off-premises analog circuits to a Z100B1 connector module in the equipment room cross-connect field. The

3-fingered end of the cable assembly contains male ribbon connectors; the other end contains

a female ribbon connector. Each cable assembly can match 24 one-pair trunk circuits to 24 three-pair trunk circuits.

WP-90929, List 4, Cable Assembly

The WP-90929, List 4, Cable Assembly (Figure 2-15 and Table 2-B) is used to connect tietrunk circuits to the system switch. The 2-fingered end of the cable assembly contains male

ribbon connectors; the other end contains a female ribbon connector. Each cable assembly

can match eight 3-pair tie-trunk circuits to two groups of four 3-pair tie-trunk circuits.

TRUNK CONCENTRATOR CABLE ORDERING INFORMATION

Description

WP-90929, List 2, Cable Assembly

WP-90929, List 4, Cable Assembly

Comcode

405 065 012

405 075 540

2-20

Page 47

Z100-TYPE HARDWARE

Figure 2-15. Trunk Concentrator Cables (WP-90929, Lists 2 and 4, Cable

Assemblies)

2-21

Page 48

Z100-TYPE HARDWARE

TABLE 2-A. WP-90929, List 2, Cable Assembly Wiring

Conn. 0

Pin No.

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Cable

No. 1

W-BL W-BR

R-O

R-S BK-G Y-BL Y-BR

V-O

V-S

Cable

No. 2

W-BL W-BR

R-O

R-S BK-G Y-BL Y-BR

V-O

Cable

No. 3

W-BL W-BR

R-O

R-S BK-G Y-BL Y-BR

V-O

Conn. 0

Numbers

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Cable

No. 1

BL-W BR-W

O-R

S-R G-BK BL-Y BR-Y

O-V

S-V

Cable

No. 2

BL-W BR-W

O-R

S-R G-BK BL-Y BR-Y

O-V

Cable

No. 3

BL-W BR-W

O-R

S-R G-BK BL-Y BR-Y

O-V

2-22

Page 49

Z100-TYPE HARDWARE

TABLE 2-B. WP-90929, List 4, Cable Assembly Wiring

Conn. 0

Pin No.

26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Cable

No. 1

W-BL

W-O W-G

W-BR

W-S

R-BL

R-O

R-G

R-BR

R-S

BK-BL

BK-O

V-S

Cable

No. 2

W-BL

W-O W-G

W-BR

W-S

R-BL

R-O R-G

R-BR

R-S

BK-BL

BK-O

Conn. 0

Pin No.

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Cable

No. 1

BL-W

O-W

G-W

BR-W

S-W

BL-R

O-R G-R

BR-R

S-R

BL-BK

O-BK

S-V

Cable

No. 2

BL-W

O-W G-W

BR-W

S-W

BL-R

O-R G-R

BR-R

S-R

BL-BK

O-BK

16-PORT ANALOG LINE BOARD ADAPTER CABLE

The 16-port Analog Line circuit pack (TN746) has an output of sixteen 1-pair circuits that appear on a 25-pair connector at the switch. The 16-port analog line adapater cable (Figure 2-16) separates the 1-pair circuits into 3-pair circuits that appear on two 25-pair connectors at one end of the cable.

The adapter cable is 8 feet (2.4 m) long and can be ordered with the TN746 circuit pack. The adapter cable is coded as an adapter and can also be ordered as described below.

16-PORT ANALOG LINE

ADAPTER CABLE ORDERING INFORMATION

Description

853B Adapter

Comcode

104 305 834

2-23

Page 50

Z100-TYPE HARDWARE

NOTE:

A B25A MUST BE USED BETWEEN THE ADAPTER CABLE AND THE CONNECTOR MODULE.

Figure 2-16. 16-Port Analog Line Board Adapter Cable (853B Adapter)

4-PORT MET LINE BOARD CONCENTRATOR CABLE

The MET Line circuit pack (TN735) has an output of four 3-pair circuits that appear on a 25-pair connector at the switch. The WP-90929, List 4, Cable Assembly (Comcode 405 075

540) described previously and shown in Figure 2-15 combines the MET line circuits that appear on two 25-pair connectors onto one 25-pair connector that connects to the crossconnect field.

ADJUNCT POWER UNITS

There are two types of power supplies used for adjunct powering—individual and bulk. The

power supplies are specified by the Field Services Organization (FSO) for firm quote price

lists. For all other quotes, the power supplies are specified by the Premises Services

Consultant (PSC).

Individual Power Supplies

Individual power supplies (Figure 2-17) can be used for powering from the equipment room, site or satellite locations, or information outlets. An individual power supply can power only one voice terminal. Table 2-C contains the individual power supply limitations for distance, wire gauge, and adjuncts.

When a number of individual power supplies are used at the equipment room or at a site or satellite location, an ac power strip (Figure 2-18) is installed to accommodate the various

2-24

Page 51

Z100-TYPE HARDWARE

sized power supplies. The outlets on the ac power strip must be spaced 3.5 inches (8.89 cm) to 4 inches (10.16 cm) apart with the plug inserts perpendicular to the strip.

Note: A 543A power unit (Comcode 104 034 541) may be required for inrush protection for a 20 amp 120-volt ac line serving multiple 329A Power Units. Contact your PSC for details. Most multiple powering requirements should be served by the 346 modular bulk power supply.

NOTES:

THE 329A AND THE KS-22911, L1 ARE SIMILAR IN APPEARANCE.

THE 2012D TRANSFORMER AND 248B TRANSFORMER MUST BE ORDERED SEPARATELY AND FIELD ASSEMBLED AS SHOWN.

Figure 2-17. Individual Power Supplies

NOTE: THIS AC POWER STRIP MUST BE

LOCALLY PROVIDED.

Figure 2-18. AC Power Strip

2-25

Page 52

Z100-TYPE HARDWARE

TABLE 2-C. Individual Power Supply Adjunct and Distance Limitations

Power Unit

Adjunct Limits

2012D Transformer One speakerphone (18-volt ac) With or headset only 248B Adapter

KS-22911, L1 Power One digital module plus Supply (48-volt dc) speakerphone or headset

One digital module plus speakerphone or headset

329A Power Supply

Two digital modules plus

(-48 volt dc) speakerphone or headset

Three digital modules plus speakerphone or headset

INDIVIDUAL POWER SUPPLY ORDERING INFORMATION

Description Comcode

2012D Transformer 248B Adapter

KS-22911, L1 Power Unit

Wire

Gauge

102 600 517 102 802 103

403 242 639

Distance

Feet (Meters)

150 (45.7)

300 (91.4)

500 (152.4)

350 (106.7)

250 (76.2)

329A Power Unit

Bulk Power Supply

103 873 998

346 Modular Bulk Power Supply

The 346 modular bulk power supply consists of a 346A1 power panel and up to three 346A power units (see Figure 2-19). The panel has three 2-ampere resettable circuit breakers, one for each 346A power unit (see Figure 2-20). Power panels are used with one, two, or three power units connected.

A standard 5-foot (1.52-m) double-ended (male, female) power cord connects the 346A1 power panel to an ac outlet. Service to the ac outlet must be a dedicated (nonswitched) 20-ampere line. A maximum of four power panels can be connected to the 20-ampere line.

Note: The city of Chicago and Cook County Illinois electrical codes require the use of a

fused ac power cord POP-6/217 by JDS Products and a metallic 346B1 power panel.

Each 346A power unit provides four power jacks. A slide switch is located between the top two and bottom two jacks. When the slide switch is in the down position, 10 watts of power are provided at the jacks above and below the switch.

When the slide switch is in the up position, the power from the jack above the switch and below the switch are combined. This provides 20 watts of power at the jack above the switch. The jack below the switch will have no power.

2-26

Page 53

Z100-TYPE HARDWARE

Figure 2-19. 346 Modular Bulk Power Supply

2-27

Page 54

Z100-TYPE HARDWARE

Figure 2-20. 346A1 Power Panel Circuit Breaker Locations

Table 2-D lists adjunct powering limitations for each individual 346A power unit.

TABLE 2-D. 346A Power Unit Adjunct and Distance Limitations

Slide Switch

Position

Adjuncts Powered

(Maximum per Unit)

Wire

Gauge

Distance

Feet (Meters)

Any four terminals equipped with one speakerphone or one headset

Down (10 w)

Any four digital voice terminals equipped with one digital module and a

260 (79.2)

speakerphone or headset each Any two digital voice terminals

Up (20 w)

equipped with up to three digital modules and a speakerphone or headset each

BULK POWER SUPPLY ORDERING INFORMATION

Description Comcode

346A Power Unit

346A1 Power Panel

104 174 768

104 174 750

2-28

346Bl Power Panel

104 174 768

Page 55

Z100-TYPE HARDWARE

EQUIPMENT ROOM DESIGN

The AT&T System 75—System Description (555-200-200) or AT&T System 7.5 XE—System Description (555-201-200) provide equipment room specifications for temperature, humidity,

air purity, lighting levels, and grounding. They also provide information on the floor and

wall space required for the system equipment and associated peripheral equipment installed in the equipment room. For completeness, some of the information contained in these documents is repeated in this manual.

Typical System Equipment Room Floor Plans

General

The equipment room floor plan must be provided by the Field Services Organization (FSO) for firm quote price lists. For all other quotes, the equipment room floor plans must be provided by the Premises Services Consultant (PSC). Factors that influence the design are as follows:

●

Size and layout of the equipment room

●

Number of equipment cabinets

●

AC outlet locations

●

Size of the system.

Typical Floor Plans

Single-Section Cross-Connect Field

Figure 2-21 shows a typical single-section cross-connect field installation. The cross-connect field is located directly behind the switch cabinet. This is the preferred cabinet and crossconnect field location.

Figure 2-22 is a typical floor plan for a 2-carrier System 75 cabinet or a 2-cabinet System 75 XE. Figure 2-23 is a typical floor plan for a 5-carrier System 75 cabinet or a 3- or 4-cabinet System 75 XE. The maximum capacity for a 2-carrier cabinet is approximately 200 stations. All cross-connect fields for the 2-carrier cabinet should be handled by a single section as shown in Figure 2-22.

The maximum capacity for a 5-carrier cabinet is 800 stations. For large systems using the 5-carrier cabinet, the size and layout of the equipment room may require that the crossconnect field be separated into two or more sections. Also, all large systems requiring more than 20 connector modules (480 stations) require multi-section cross-connect fields. (See Multi-Section Cross-Connect Field for details.)

2-29

Page 56

Z100-TYPE HARDWARE

Figure 2-21. Typical Single-Section Cross-Connect Field Installation

(Approximately 288 Station Capacity Illustrated)

2-30

Page 57

Z100-TYPE HARDWARE

NOTES:

THE POWER OUTLET MUST NOT BE UNDER SWITCH CONTROL AND MUST NOT BE SHARED WITH OTHER

1. EQUIPMENT. THE POWER OUTLET SHOULD BE LOCATED OUTSIDE THE CROSS-CONNECT FIELD AREA. ALSO, ANY CONDUIT SERVING THE OUTLET CANNOT RUN THROUGH OR BELOW THE AREA WHERE THE CONNECTOR MODULES ARE TO BE MOUNTED.

ALLOW AT LEAST 36 INCHES (91.4 cm) OF SPACE IN FRONT AND 6 INCHES (15.4 cm) ON THE RIGHT OF THE CABINET TO PERMIT THE DOOR TO SWING OPEN. CABINET IS LOCATED ALONGSIDE THE CROSS-CONNECT FIELD WHEN CABLE SLACK MANAGER IS NOT

3. USED.

Figure 2-22. Typical 2-Carrier System 75 Cabinet or 2-Cabinet System 75 XE

Floor Plan

2-31

Page 58

2-32

Z100-TYPE HARDWARE

Page 59

Z100-TYPE HARDWARE

Mult-Section Cross-Connect Field

A multi-section cross-connect field consists of two or more sections of connector modules

physically separated. The sections should be equal if possible (eight to ten connector

modules each). A multi-section cross-connect field is always required when the cross-connect

field consists of more than 20 connector modules due to patch cord length limits.

A multi-section cross-connect field can also be required due to the size and shape of the equipment room (see Figure 2-24). Figure 2-25 shows a typical equipment room floor plan using a multi-section cross-connect field.

Figure 2-24. Typical Multi-Section Cross-Connect Field Installation

(Approximately 576 Station Capacity Illustrated)

2-33

Page 60

Z100-TYPE HARDWARE

Figure 2-25. Typical 5-Carrier Cabinet Floor Plan Using a Multi-Section Cross-

Connect Field

Wall Space Requirements

Single-Section Cross-Connect Field

As shown in Figures 2-22 and 2-23, the cross-connect field and trunk/auxiliary field are mounted on a common wall. A maximum of 20 connector modules, plus a Z9A Support to complete the field, can be mounted continuously on the wall. Each connector module and the Z9A Support are approximately 5 inches (12.7 cm) wide.

If CAPs are used for the trunk/auxiliary field, each column of CAPs mounted to the left or

right of the cross-connect field requires approximately 26 inches (66.0 cm) of horizontal wall space. Approximately 8 inches (20.3 inches) of horizontal wall space is required for each column of sneak fuse panels. Wall space must also be provided for emergency transfer units

when they are mounted outside the CAPs. If 110-type or 66-type hardware is used as the trunk/auxiliary field, refer to Section 3 or 4 of this manual.

Multi-Section Cross-Connect Field

As shown in Figure 2-25, the multi-section cross-connect field allows you to tailor your cross-connect field to fit in an equipment room with limited horizontal wall space on one continuous wall (no corners) for the size system being installed. The size of each cross-

2-34

Page 61

Z100-TYPE HARDWARE

connect field section is strictly dictated by the horizontal wall space required. The sections may be located on several walls in the room.

Equipment Requirements

Connector Module, Patch Cord, and Cable Slack Manager Requirements

Table 2-E lists the Z100 cross-connect hardware requirements based on station capacity for one cross-connect field section providing 4-pair (Z100A1) or 3-pair (Z100B1) distribution from the equipment room to the station wiring (see Note).

Note: An additional Z9A support must be ordered to complete the field. Also, Z100B1

Connector Modules or Z203A1 Connecting Units are required for connecting offpremises stations.

TABLE 2-E. Z100 Cross-Connect Hardware Requirements

Number

of Z100A1 Patch Cords* Number

or Z100B1†

Station Connector 7 Ft.

Range Modules (2.1m)

1-24 25-48 49-72 73-96

97-120 121-144 145-168 169-192 193-216

217-240 241-264

265-288 289-321 313-336 337-360 361-384 385-408 409-432 433-456 457-480

29 58 87 - - -

4 116 - - 5

144 - - - 1 6 173 - - 7 8 9

11 12 13

202 - - - 2 230 257

280 302 320

333 14 348 25 16 17 18

19 20

359

369 378 107 386 393 399

Number of ZD6A-87

10 Ft. 12 Ft. 14 Ft.

(3.0m) (3.7m)

(4.3m)

- - -

2 - 3 - - 2 9 - -

- 27 - 40 - 56 - 72

2 -

90 3 -

5 124 138 152

10 17 26

- 4 2 4

of Cable

Slack

Managers

1 1 1 1

2 2 3

3 3 3 3 3

Includes 20% spares rounded up.

†

Includes eight spare station jacks per module. Based on 24 port jacks per Z100B1 connector module.

2-35

Page 62

Z100-TYPE HARDWARE

Cable Access Panel Requirements

The number of cable access panels (CAPs) required is based on the number of through connections required at the CAP. Each CAP provides five 25-pair through connections, in and out. The primary circuits that pass through the CAP are 1-pair central office trunk circuits and 3-pair tie trunk circuits.

The trunk cables connect from the network interface through the sneak fuse panel and CAP to the system cabinet. Concentrator cables are used between the CAP and the system

cabinet. The connections are described under the heading Installing Trunk Cables Between Network Interface and System Cabinet in this manual.

Trunk Circuit Capacities

Because concentrator cables are installed between the CAP and the system cabinet, the capacity for each pass-through connection is 24 one-pair trunks or 8 three-pair trunks.

Procedure:

Divide total number of 1-pair circuits by 24.

If there is a remainder, round up to the next highest number. Let this number equal PR1.

Divide total number of 3-pair circuits by 8.

If there is a remainder, round up to the next highest number. Let this number equal PR3.

Add PR1 and PR3. Let this number equal CR (total number of pass-through

5. connections for trunk circuits).

Determine the total number of pass-through connections (X) required for the following auxiliary and miscellaneous circuits:

—

Analog voice terminals used for emergency transfer service and as normal extensions. Divide total number provided by eight. If there is a remainder, round up to the next highest number.

—

Digital out-of-building voice terminals. Divide total number provided by eight. If there is a remainder, round up to the next highest number.

—

Analog out-of-building voice terminals. Divide total number provided by

24. If there is a remainder, round up to the next highest number.

—

Each 71A data mounting or 3270C data module that connects directly through the CAP to a system circuit pack.

Add CR, X, and 1*. Divide this number by 5. If there is a remainder, round up to

the next highest number. This is the total number of CAPs required.

Selecting the Cable Access Panel

Once the number of CAPs required is known, a choice has to be made as to what combination of the three available codes to order. This selection is based solely on the emergency transfer requirements.

If ground start trunks are used for the emergency transfer stations, the 400C apparatus mounting equipped with the 574-5 Power Transfer Unit is recommended. The 574-5 unit

* Auxiliary connection always required on initial CAP for control carrier outputs.

2-36

Page 63

Z100-TYPE HARDWARE

provides automatic ground start (no ground start switches are needed). Each 574-5 unit can accommodate up to five voice terminals used for emergency transfer service.

If loop start trunks are used for the emergency transfer stations, the 400B apparatus mounting equipped with the Z1A Emergency Transfer Unit is recommended. Each Z1A unit can accommodate up to six voice terminals used for emergency transfer service (see Note).

Note: One of the emergency transfer positions is occupied by the optional DID makebusy trunk, if provided.

If there are no emergency transfer stations, the 400A apparatus mounting is recommended. It is also recommended when more than one CAP is required and the emergency transfer units are located in another CAP or outside the CAP.

If the number of analog stations required for emergency transfer service exceeds the capacity of the CAPs, additional emergency transfer units should be ordered separately and mounted on the wall near the CAP. Each wall-mounted emergency transfer unit requires an additional CAP pass-through connection.

2-37

Page 64

Z100-TYPE HARDWARE

EQUIPMENT ROOM HARDWARE AND CABLING INSTALLATION

Hardware Installation

The procedures provided in this manual for installing hardware are written so that one System Technician can do the installation. Procedures are provided for installing the following:

●

Cross-Connect Field

●

Cable Slack Managers

●

Labels for Cross-Connect Field

●

Cable Access Panels Labels for Cable Access Panels

●

Sneak Fuse Panels.

●

Installing the Cross-Connect Field

The preferred cross-connect field location is directly behind the switch cabinet. The first connector module is aligned with the left side of the switch cabinet (see Figure 2-21). This

arrangement allows for growth on the right side of the cross-connect field.

When off-premises stations are required and you are installing a cross-connect field using Z100A1 connector modules, Z100B1 connector modules provided for off-premises stations are installed last in the field.

To install the cross-connect field, proceed as follows:

Locate the position of the first connector module on the floor plan.

Position the bottom of the first connector module 35 inches (88.9 cm) above the floor as shown in Figure 2-26 (see Note).

Note: The first module must be mounted accurately in a vertical position

(plumb) because all other modules are positioned from this one.

Mark the upper-left slotted mounting screw opening in the support.

Remove the module, drill a hole in the backboard for No. 10 wood screw, and start the 1-1/4 inch (32-mm) screw.

Move the module back in place and carefully align with a level.

Mark the remaining five slotted openings located in the support and remove the module.

Drill holes in the backboard for No. 10 wood screws and move connector module back into place.

Using 1-1/4 inch (32-mm) No. 10 wood screws, fasten the cross-connect module into place. Do not tighten the screws on the right side until the next connector module is in place.

2-38

Using the positioning tabs, align the next connector module to the right of the previously installed module.

10.

Push the supports together until the top and bottom interlocks snap together.

11.

Tighten the screws on the left side for the previously installed connector module.

Page 65

Z100-TYPE HARDWARE

Drill the pilot holes for the upper- and lower-slotted openings on the right side of

12. new support and start the screws.

13.

Repeat steps 9, 10, 11, and 12 until all connector modules (20 maximum) and the Z9A support (see Note) are installed.

Note: The Z9A support provides a patch cord channel for the last connector

module installed.

If you are installing a multi-section cross-connect field, locate the position of the

14. first connector module on the floor plans and repeat the procedure from step 2 for

each section.

NOTES:

EACH CONNECTOR MODULE AND THE Z9A SUPPORT IS 5 INCHES (12.7 CM) WIDE.

THIS DISTANCE IS FROM THE FLOOR TO THE BOTTOM OF THE Z9A SUPPORT

Figure 2-26. Cross-Connect Field and Cable Access Panel Installation

2-39

Page 66

Z100-TYPE HARDWARE

Installing Cable Slack Managers

To install the cable slack managers, proceed as follows:

Position the first cable slack manager against the wall under the cross-connect field aligning the side of the manager with the first module installed.

Position the next cable slack manager under the cross-connect field and alongside

2. the previously installed manager insuring that tabs and interlocks align and fit together.

Repeat step 2 until all the cable slack managers are installed.

Note: Nine 1/4-inch (6.4-mm) diameter holes are provided in the cable slack manager bases for earthquake mounting if required. Also, if the cable slack managers are mounted on an uneven floor, shims may be required to keep the cable slack managers level and insure proper fit of the covers. Holes are also provided in the sides of the base for bolting the cable slack managers together. Bolts and shims must be locally provided.

2-40

Page 67

Z100-TYPE HARDWARE

Labeling the Cross-Connect Field

Figure 2-27 shows graphic symbols used (instead of words) on labels for switch, crossconnect, information outlets, and cables for the system. The labels are color-coded to identify the system wiring as follows:

●

Green—Leads to central office

●

Purple—Leads to switch ports

●

Yellow—Leads to auxiliary equipment and miscellaneous switch leads

●

Blue—Leads to information outlets

●

White—Leads from the cross-connect field to satellite locations (3-pair)

●

Grey—Leads between cross-connect field sections and between satellite locations.

Figure 2-27. System Label Graphic Symbols and Designation Nomenclature

2-41

Page 68

Z100-TYPE HARDWARE

Main Cross-Connect Field

Figures 2-28 illustrates a typical cross-connect field layout and fill directions.

Figure 2-28. Cross-Connect Field Layout

PORT LABELS—PURPLE

The labels shown in Figure 2-29 identify equipped carrier slots (see Note) in the switch cabinet. These labels should be grouped together (by carriers) starting with cables from Carrier A on the first connector module installed.

Note: Equipped carrier slots are identified on the Customer Service Order.

2-42

Page 69

●

USAGE: IDENTIFIES CABINET, CARRIER

AND PORT CIRCUIT SLOT NUMBERS AND EIGHT PORT JACKS. THERE ARE 90 DIFFERENT PORT LABELS

●

CODE NO: 101A THRU 104A, 110A THRU 113A, 117A

PURPLE

Z100-TYPE HARDWARE

●

USAGE: IDENTIFIES PORT JACKS 9 THRU 16 ON TN746 ANALOG LINE BOARD. (WRITE IN CABINET, CARRIER, AND SLOT DESIGNATIONS AS REQUIRED.)

●

CODE NO: 119A

PURPLE

Figure 2-29. Port Labels

USAGE:

●

IDENTIFIES PORT JACKS 1 THRU 4 ON TWO TN735 MET LINE BOARDS. (WRITE IN CABINET, CARRIER, AND SLOT DESIGNATIONS AS REQUIRED.)

●

CODE NO: 118A

PURPLE

2-43

Page 70

Z100-TYPE HARDWARE

4-PAIR STATION LABELS—BLUE

The labels shown in Figure 2-30 identify 4-pair station appearances at the cross-connect field. These labels should be installed in sequence (1 to 480) starting with the first connector module installed. These numbers are used throughout the station wiring and at the information outlets.

●

USAGE: IDENTIFIES 4-PAIR STATION APPEARANCES. LABELS ARE NUMBERED IN SEQUENCE FROM 1-480. THERE ARE 80 DIFFERENT 4-PAIR STATION LABELS.

USAGE: CUSTOM IDENTIFICATION OF 4-PAIR STATIONS AND FOR SPARES.

●

CODE NO: 101A THRU 105A, 115A

BLUE

CODE NO: 108A

Figure 2-30. 4-Pair Station Appearance Labels

BLUE

2-44

Page 71

Z100-TYPE HARDWARE

3-PAIR STATION LABELS—BLUE AND WHITE

The blue label shown in Figure 2-31 identifies 3-pair station appearances (on-premises and

off-premises) at the cross-connect field. The on-premises labels are installed in sequence (1 to 560) starting with the first connector module installed. The off-premises labels must be

grouped together and installed in sequence (1 to 80) on Z100B1 connector modules (see Note).

Note: Z100B1 connector modules are located at the end of the cross-connect field when Z100A1 connector modules are used at the cross-connect field to provide 4-pair circuits

from the equipment room to the station wiring.

The white label shown in Figure 2-31 identifies 3-pair station appearances at the crossconnect field that connect to a satellite location. The white labels must be grouped and numbered in sequence (1 to N) to correspond to the satellite location labeling.

●

USAGE: IDENTIFIES 3-PAIR STATION APPEARANCES THAT CONNECT TO A 356A ADAPTER. ALSO IDENTIFIES OFF-PREMISES STATIONS CONNECTED FROM THE CABLE ACCESS PANEL. LABELS ARE NUMBERED IN SEQUENCE FROM 1 TO 504 FOR 3-PAIR STATIONS AND FROM 1 TO 80 FOR OFF-PREMISES STATIONS.

USAGE: IDENTIFIES 3-PAIR TIE CIRCUIT APPEARANCES THAT CONNECT TO A SATELLITE LOCATION. THE LABELS ARE NUMBERED IN SEQUENCE FROM 1 TO 160.

●

CODE NO: 110A THRU 114A, 107A (OFF-PREMISES STATIONS), 109A (UNNUMBERED), 116A (NUMBERED 1 TO 560)

BLUE

CODE NO: 122A (NUMBERED)

123A (UNNUMBERED)

WHITE

Figure 2-31. 3-Pair Station Appearance Labels

2-45

Page 72

Z100-TYPE HARDWARE

AUXILIARY LABELS—YELLOW

The labels shown in Figure 2-32 identify auxiliary port and circuit appearances at the cross-

connect field. They are placed at the end of the purple field.

●

USAGE: IDENTIFIES PORT JACKS 1 THRU 6 FROM AN SSI PORT ON AN AP.

●

CODE NO: 106A

USAGE: IDENTIFIES 3-PAIR AUXILIARY CIRCUITS 1 THRU 8.

●

CODE NO: 106A

YELLOW

Figure 2-32. Auxiliary Labels

2-46

Page 73

Z100-TYPE HARDWARE

Multi-Section Cross-Connect Field

SECTION TIE LABELS—GREY

The labels shown in Figure 2-33 are used at the end of a section of a multi-section cross-

connect field section to identify 25-pair tie cables that connect between sections. The label on the left is installed at the end of the purple or white field. The label on the right is installed at the end of the blue field.

●

USAGE:

IDENTIFIES 3-PAIR PORT OR STATION APPEARANCES 1 THRU 8.

USAGE: IDENTIFIES 4-PAIR STATION APPEARANCES 1 THRU 6.

●

CODE NO: 121A

GREY

Figure 2-33. Section TIE Labels

●

CODE NO: 120A

GREY

2-47

Page 74

Z100-TYPE HARDWARE

CONNECTOR MODULE LABEL CODE NUMBER DEFINITIONS

Label Codes 101A through 105A

Label Code

Number Range Qty (Spares) Range

101A

4-Pair Station*

(Sta. No.)

001—102

(Blue)

17 (3)

(Purple)

1A 1—20

Port

Quantity Total

Total

1B 1—20

102A 103A 104A 105A

103—204 205—306 307—408 409—480

17 (3) 17 (3) 17 (3) 12 (8)

1C 1—20 1D 1—20 1E 1—20

- 0

40 20 40 20

* Increments of six stations per label.

Label Code 106A—Auxiliary Labels

Consists of ten yellow labels (see Figure 2-32). Five of the labels are sectioned to identify

eight 3-pair auxiliary circuits. Three labels are sectioned to identify port jacks one through

six from an SSI port on an Applications Processor. Two spare labels are provided.

Label Code 107A—3-Pair Station Labels

Consists of ten blue labels (see Figure 2-31). Each label identifies eight off-premises stations. The labels are numbered sequentially from 1 to 80.

Label Code 108A—4-Pair Station Labels

Consists of ten unnumbered blue labels (see Figure 2-30).

Label Code 109A—3-Pair Station Labels

Same as Code 107A except the ten labels are unnumbered.

Label Codes 110A through 114A

3-Pair Station*

Code Number

110A

Range

(Sta. No.)

001—104

(Blue)

Quantity

13 30

1A 1—10

1B 1—20 111A 112A 113A 114A

105—200 12 20 201—304 305—400

401—504

13 12 13

1C 1—20

1D 1—20

1E 1—20

* Increments of eight stations per label.

Port

(Purple)

QuantityRange

20 0

TotalLabel

Total

32 33

32 13

2-48

Page 75

Z100-TYPE HARDWARE

Label Code 115A—4-Pair Station Labels

This label code provides only the 4-pair station labels (blue) numbered 1-480. These labels are the same as the 4-pair station labels in label codes 101A through 105A. Consists of 100 labels (see Figure 2-30).

Label Code 116A—3-Pair Station Labels

This label code provides only the 3-pair station labels (blue) numbered 1-560. These labels are the same as the 3-pair station labels in label codes 110A through 114A except some extra labels are provided. Consists of 100 labels (see Figure 2-31).

Label Code 117A—Port Labels

This label code provides only the port labels (purple) for carriers A-E and are numbered 1-20 for each carrier. These labels are the same as the port labels in label codes 101A through 114A. Consists of 100 labels (see Figure 29).

Label Code 118A—MET Circuit Labels

Consists of ten purple labels (see Figure 2-29) to identify port jacks on two MET line boards.

Label Code 119A—16-Port Analog Line Labels

Consists of ten purple labels (see Figure 2-29) to identify port jacks 9 through 16 on a 16port analog line board.

Label Code 120A—4-Pair Section TIE Labels

Consists of ten grey labels (see Figure 2-33). The labels are sectioned to identify six 4-pair station appearances.

Label Code 121A—3-Pair Section TIE Labels

Consists of ten grey labels (see Figure 2-33). The labels are sectioned to identify eight 3-pair station appearances.

Label Code 122A—Satellite Closet Labels

Consists of 40 white labels (see Figure 2-31). The labels are sectioned to identify eight 3-pair station appearances and are numbered from 1-160.

Label Code 123A—Satellite Closet Labels

Consists of ten unnumbered white labels. The labels are sectioned to identify eight 3-pair station appearances.

2-49

Page 76

Z100-TYPE HARDWARE

CONNECTOR MODULE LABEL ORDERING INFORMATION

Description Qty. Per Code

101A Labels 102A Labels 103A Labels 104A Labels 105A Labels 106A Labels 107A Labels 108A Labels 109A Labels 110A Labels 111A Labels 112A Labels 113A Labels 114A Labels 115A Labels 116A Labels 117A Labels 118A Labels 119A Labels 120A Labels 121A Labels 122A Labels 123A Labels

60 40 40 40 20 10 10 30 10 60 40 40 40

20 100 100 100

10 10 10 10 40 10

Comcode

103 969 754 103 969 762 103 969 770 103 969 788 103 969 796 103 969 804 103 969 812 103 969 820 103 969 838 103 969 846 103 969 853 103 969 861 103 969 879 103 969 887 103 985 131 103 985 149 103 985 156 103 985 164 103 985 172 103 985 180 103 985 198 103 985 206 103 985 214

Installing the Cable Access Panels (CAPs)

The cable access panels are wall-mounted. A maximum of three panels can be mounted in a vertical column. To install the cable access panels, proceed as follows:

Align the first cable access panel 4 inches (10.2 cm) to the left side and 6 inches

1. (15.2 cm) above the cross-connect field location (see Figure 2-26).

Mark the keyhole mounting screw location in the upper-right corner of the cable

2. access panel.

Remove the cable access panel, drill a hole in the backboard, and start a 3/4-inch

3. (19 mm) No. 12 wood screw.

Move the cable access panel back into place and align.

4. Mark the remaining three keyhole mounting screw locations in the cable access

panel.

Remove panel and drill pilot holes in the backboard.

Move the cable access panel back into place and fasten to the backboard with the

3/4-inch (19 mm) No. 12 wood screws.

Align next cable access panel 1 inch (2.5 cm) below the previously positioned cable

access panel and repeat steps 2 through 7. If you are installing two columns of cable access panels, position top cable access

panel 4 inches (10.2 cm) to the left of the first column of cable access panels and repeat procedure from step 2.

2-50

Page 77

Z100-TYPE HARDWARE

Labeling the Cable Access Panel

The CAP labels are ordered along with other labels. The labels slide into a clear plastic holder (Figure 2-34) that snaps into place between the 110-type terminal rows. The holder is apparatus coded as a strip designation.

CABLE ACCESS PANEL LABEL ORDERING INFORMATION

Description

230A Labels

188UT1-50 Strip

Designation

Qty. Per Code

20 103 970 109

6 103 895 504

Comcode

Figure 2-34. Clear Plastic Label Holder (188UT1-50 Strip Designation)

2-51

Page 78

Z100-TYPE HARDWARE

Control Carrier Outputs (AUXILIARY) Label

The label shown in Figure 2-35 is used for the System 75. For labeling required for the

System 75 XE, refer to the AUXILIARY connector labeling in section 3 (110-type hardware) of this document. The AUXILIARY connector label is always installed between terminal rows 1C and 2D on the first (top) CAP. The top half of this label identifies the outputs from the control carrier AUXILIARY connector on the 1C terminal row. These outputs are distributed to other points in the CAP and do not pass directly through the CAP. These outputs include the following:

Alarm monitoring for the Applications Processor and the Auxiliary Cabinet

●

Seven -48 volts dc power sources for emergency transfer units

●

Three -48 volts dc power sources for remotely powering two attendant consoles and one executive’s voice terminal adjunct (not available on the System 75 XE)

The Initialization and Administration System (INADS) trunk connection location.

●

For the System 75 XE, access to a relay contact is available for a customer-provided alarm that can be used to connect a light, bell, or similar type device. The relay can be administered so that it will make contact when a major, minor or warning alarm condition exists on the system. The circuitry required for this feature must be provided by the customer. The device connected to the alarm leads must not exceed a rating of more than 100 volts at 3/4 amps.

The bottom half of the label is used to identify trunk circuits (1-pair or 3-pair) on the 2D terminal row that connect through the sneak fuse panel to the network interface.

2-52

Page 79

Z100-TYPE HARDWARE

Figure 2-35. Control Carrier Outputs (AUXILIARY Label)

2-53

Page 80

Z100-TYPE HARDWARE

System Port Circuit Appearance and Trunk Labels

The labels shown in Figure 2-36 are used to identify system port circuit appearances and

network interface leads for trunk circuits. The top label shown in Figure 2-36 is a blank

white label. The bottom label shown in Figure 2-36 shows an example of how to fill out a

blank white label to be used when concentrator cables are located between the CAP and the

switch cabinet. The top half of the label identifies system port circuit appearances. The bottom half of the

label identifies 1-pair or 3-pair trunk circuits that connect through the sneak fuse panel to the network interface.

System Port Circuit Appearance and Auxiliary Circuit Labels

The label shown in Figure 2-37 is used to identify system port circuit appearances and auxiliary leads. The label shown in Figure 2-37 shows an example of how to fill out a blank

white label (Figure 2-36) to be used when concentrator cables are located between the CAP

and the switch cabinet.

The top half of the label identifies system port circuit appearances. The bottom half of the

label identifies 3-pair auxiliary circuits that connect directly through the CAP to the switch cabinet. These circuits are not cross-connected. This would include connections such as those from a 71A data mounting to a Digital Line circuit pack.

2-54

Page 81

Z100-TYPE HARDWARE

Figure 2-36. System Port Circuit Appearances and Trunk Labels

2-55

Page 82

Z100-TYPE HARDWARE

Figure 2-37. System Port Circuit Appearances and Auxiliary Circuit Labels

2-56

Page 83

Z100-TYPE HARDWARE

Emergency Transfer Label—Z1A Unit

There are two labels (see Figure 2-38) that can be used for the Z1A Emergency Transfer Unit. The top label shown in Figure 2-38 is used on the EM XR row for 400B cable access panels equipped with the Z1A unit. It can also be used for externally mounted Z1A units. The top half of the label identifies leads to the Z1A unit and the connection point for -48

volts dc power. When used with the preinstalled Z1A unit, the bottom half of the label is

used to identify connections for alarm outputs from an Applications Processor or Auxiliary Cabinet on the 1D terminal row. When used with an externally mounted Z1A unit, the bottom half of the label identifies 3-pair auxiliary circuits that connect directly through the CAP to the switch. This would include connections such as those from a 71A data mounting to a Digital Line circuit pack.

The bottom label shown in Figure 2-38 is used when the Z1A unit is used and located outside the CAP. The top half of the label is identical to the label used for the preinstalled Z1A unit. The bottom half of the label is used to identify 1-pair or 3-pair trunk circuits that connect to the network interface.

Emergency Transfer Labels—574-5 Unit

The two labels shown in Figure 2-39 show an example of how to modify the Z1A Emergency Transfer Unit labels (Figure 2-38) to be used for the 574-5 power transfer unit. The right hand portion of the label must be changed as shown in the exploded view in Figure 2-39. The 574-5 unit is preinstalled in the 400C cable access panel.

2-57

Page 84

Z100-TYPE HARDWARE

2-58

Figure 2-38. Z1A Emergency Transfer Unit Labels

Page 85

Z100-TYPE HARDWARE

Figure 2-39. 574-5 Power Transfer Unit Labels

2-59

Page 86

Z100-TYPE HARDWARE

"X" Connector Label

The label shown in Figure 2-40 is installed between terminal rows 5C and "X" on the CAP. The top half of the label identifies system port circuit appearances on the 5C connector that are used for voice terminals used for both emergency transfer stations and normal extensions. The bottom half of the label identifies the connection to the cross-connect field for voice terminals used only for emergency transfer.

Figure 2-40. "X" Connector Label

Installing the Sneak Fuse Panels

Install the sneak fuse panels as near as possible to the network interface. The fuse panel has two mounting screw slots. To install the panel, proceed as follows:

1. Hold the panel against the mounting surface and mark the upper right and lower left mounting screw locations and remove panel.

Drill pilot holes at the marked locations and partially install the screws.

Slide the panel onto the mounting screws and tighten.

Repeat the procedure for each additional sneak fuse panel.

Cable Installation

Labels

The port label shown in Figure 2-41 is installed on both ends of the 25-pair main crossconnect field and the cable access panel. The blue/yellow building and floor labels are

optionally used for cables that connect from the equipment room to a site or satellite location located on another floor or in another building. An additional yellow port label is shown. This yellow label is used for auxiliary circuits that connect to the cable access panel or SSI circuits that connect to an Applications Processor.

2-60

Page 87

Z100-TYPE HARDWARE

The yellow/blue label is used on 25-pair station cables that connect to site or satellite closets.

LABEL NAME

PORT CABLE

BUILDING

FLOOR

AUXILIARY CABLE

SITE OR SATELLITE

CABLE/JACK/BUILDING LABEL ORDERING INFORMATION

RANGE

1A1-1A10, 1B1-1B20,

1C1-1C20, 1D1-1D20,

1E1-1E20

FIELD IDENTIFIED

A-F AND/OR

FIELD IDENTIFIED

SAMPLE LABEL

BLUE/YELLOW

Figure 2-41. Equipment Room Cabling Labels

Description Qty. Per Code

Comcode

PURPLE

YELLOW

201A Labels

34 sheets

103 969 994

Figure 2-42 shows the proper label installation on a 25-pair cable connector (see Note).

Note: The label should be installed near the rear of the connector as shown so that it

will not be obscured by any of the switch cabinet, cable access panel, or connector module connector retainers. It can also be installed on the skin of the cable near the

connector.

Figure 2-42. Self-Stick Label Installation on 25-Pair Cable Connector

Routing Cable Guidelines

The following guidelines should be followed when installing the equipment room cabling. Following these guidelines will make optimum use of the cable slack managers and make future cabling additions and changes easier.

2-61

Page 88

Z100-TYPE HARDWARE

General

Figure 2-43 shows cable routing through the cable slack manager for a 1-cabinet installation. Cables pass through the cable slack manager in either the cabinet or wall troughs or when needed through the two center troughs.

Port cables should use the cabinet trough for the parallel runs. The station cables should use the wall trough. The center troughs are used after the cabinet and wall troughs are filled.

Figure 2-44 shows typical cable routing from the switch cabinet to the cross-connect field and cable access panel.

Figure 2-43. Cable Routing Through Cable Slack Manager—1-Cabinet

Installation

2-62

Page 89

CABLES RUN FROM SWITCH CABINET TO CABLE ACCESS PANEL.

CABLES RUN FROM SWITCH CABINET TO FIRST SIX

CONNECTOR MODULES. CABLES RUN FROM SWITCH CABINET TO SECOND SIX

CONNECTOR MODULES. CABLES RUN FROM SWITCH CABINET TO THIRD SIX

CONNECTOR MODULES.

Z100-TYPE HARDWARE

Figure 2-44. Cable Routing From Switch Cabinet to Cross-Connect Field and

Cable Access Panel

Routing Cables From Switch Cabinet to Cross-Connect Field

The following guidelines should be followed when routing cables from the switch cabinet to the cross-connect field.

●

Each individual port cable should be first connected to the switch cabinet and then routed from the switch cabinet along the front trough of the cable slack manager to the front of the connector module where the port cable is to be installed.

●

Enough slack should be left at the cabinet to allow dressing of the cables (Figure 2-

45).

●

The cable is then routed perpendicularly from the front trough to the wall along side

a row of five columns in the cable slack manager (see Note).

Note: Retainers mounted on the columns keep the cable from protruding above the top of the base of the cable slack manager.

The length of cable required to reach from the floor to the port connecting unit in

●

the connector module is then determined.

●

One to two inches (2.5 to 5 cm) of slack should be left between the connector module

and the floor to allow the jack panel to open.

2-63

Page 90

Z100-TYPE HARDWARE

●

Cable slack is then stored perpendicular to the wall and cabinet by coiling the cable around the columns in the cable slack manager. The first run should always go back and forth the full length of five columns in the cable slack manager.

●

The cable is then connected to the port connecting unit in the connector module.

Routing Cables From Cable Access Panel to Switch Cabinet

Trunk cables connecting the CAP to the switch cabinet should be routed and the cable slack

stored individually in the cable slack manager located directly behind the switch cabinet (see Figure 2-44). Detailed procedures are provided for installing the cables under the heading

Installing Trunk Cables Between Network Interface and System Cabinet.

2-64

Figure 2-45. Typical Port Cable Installation at Switch Cabinet

Page 91

Z100-TYPE HARDWARE

Installing Control Carrier Outputs Cable

Control carrier outputs are used for power failure transfer power, accessory power (not provided on System 75 XE), alarm monitoring, customer provided alarm (System 75 XE only), and the Initialization and Administration System (INADS) interface. A 25-pair switch cable connects the control carrier AUXILIARY connector (see Figure 2-46 or 2-47) to the 1C connector on the first (top) cable access panel.

Figure 2-35 shows the 1C terminal row designation label required at the cable access panel. These outputs must be distributed to other points and do not pass directly through the cable access panel. To connect the cable, do the following:

Remove all straps between the 1C and 1D terminal strips on the initial (top) cable access panel only.

Install a YELLOW auxiliary label on both connector ends of a switch cable. The letters "AUX" should be written on each label.

Run and connect switch cable from AUXILIARY connector on rear of control carrier through cable slack manager to 1C connector on cable access panel.

The output wiring connections for alarm monitoring, emergency power failure, accessory power, and the INADS trunk interface is contained in this manual under the heading

MISCELLANEOUS WIRING INSTALLATION.

Figure 2-46. Control Carrier Outputs (AUXILIARY Connector)—System 75

2-65

Page 92

Z100-TYPE HARDWARE

Figure 2-47. Control Carrier Outputs (AUXILIARY Connector)—System 75 XE

Installing Trunk Cables Between Network Interface and System Cabinet

The trunk pairs installed by the local telephone company must be located on specific pin assignments at the network interface so that they match the pin designations on the carrier

connectors located on the rear of the switch cabinet (see Table 2-F and Figures 2-48, 2-49,

and 2-50).

Cross-connecting the trunk leads is not recommended in the cable access panel except on a very limited basis and when necessary for temporary maintenance (for example, one used port bad on a trunk circuit pack and a good spare port available on another trunk circuit pack).

2-66

Page 93

2-67

Z100-TYPE HARDWARE

Page 94

2-68

Z100-TYPE HARDWARE

Page 95

Z100-TYPE HARDWARE

2-69

Page 96

2-70

Z100-TYPE HARDWARE

Page 97

2-71

Z100-TYPE HARDWARE

Page 98

Z100-TYPE HARDWARE

Concentrator cables are used between the cable access panel and the switch cabinet. This provides 3-pair modularity after the cable access panel. WP-90929, Lists 2 and 4, cable assemblies are required for the connections (Figure 2-51).

Figure 2-51. Installing Concentrator Cables Between the CAP and the Switch

Cabinet

2-72

Page 99

Z100-TYPE HARDWARE

The following procedure covers only the cables that connect from the switch cabinet through the cable access panel and sneak fuse panel to the network interface (RJ21X or RJ2GX). It does not cover the connections for trunk circuits provided for off-premises lines. The WP-

90929, List 2, cable assembly connects these trunk circuits from the CABINET CABLES

connectors on the right side of the cable access panel to the cross-connect field. Connections for off-premises lines to the cross-connect field and other optional auxiliary

connections using connectors on the cable access panel are covered under MISCELLANEOUS WIRING INSTALLATION (see Note).

Note: Connector is used to connect power failure transfer terminals and to provide external power to two attendant consoles. Connector 1 on the initial cable access panel is always used to connect the control carrier leads as previously described.

To install the cables, proceed as follows:

Connect B25A cables between the network interfaces and the sneak fuse panels.

Connect A25D cables between the sneak fuse panels and the DISTRIBUTION CABLES connectors on the left side of the cable access panels(s).

Connect the single-fingered end of the concentrator cables to the CABINET

3. CABLES connectors of the right side of the cable access panels.

Connect the 3-fingered and 2-fingered ends of the concentrator cables to the

4. appropriate carrier slots. Equipped carrier slots are identified on the Customer Service Order. It is helpful to mark the nomenclature strips above the carriers at rear of cabinet to identify the equipped slots.

Label connectors on both ends of the cables that connect to the switch cabinet.

5. Dress cables down sides of cabinet and store excess cable slack in the cable slack

6. manager as described previously.

Install labels on cable access panel (see Labeling the Cable Access Panel).

Installing Coupled Bonded Conductor Grounding

A coupled bonding conductor must be tie-wrapped to all trunk cables. The coupled bonding conductor connects to the cabinet single-point ground block and runs all the way to the approved ground located nearest the telephone company owned protector block at the building entrance facility (see Figure 2-52).

Note: Approved ground is defined in the AT&T System 75—System Description (555-

200-200) or AT&T System 75 XE—System Description (555-200-200).

2-73

Page 100

Z100-TYPE HARDWARE

NOTE:

AT THIS POINT, THE ORDER OF PREFERENCE FOR THE COUPLED BONDING CONDUCTOR IS AS FOLLOWS: CONTINUOUS METALLIC CABLE SHEATH

1. 10 GAUGE (6.88 MM) STRANDED WIRE

2. (TIE-WRAPPED TO CABLES)

SIX GOOD UNUSED CABLE PAIRS. A COMBINATION OF THE ABOVE.

Figure 2-52. Coupled Bonded Conductor Grounding Installation

Installing Cables Between Switch Cabinet and the Cross-Connect Field

Before starting the following procedure, refer to Routing Cables From Switch Cabinet

To Cross-Connect Field guidelines. Also, all purple labels should have been previously

installed on the connector modules as described under the heading Labeling the Cross-

Connect Field.

At the first connector module in the cross-connect field, open jack panel by pressing the two flex tab latches on the support and by pulling on the patch cord guide located at bottom of the jack panel (Figure 2-53).

Install self-stick port labels on the back of the cable connectors (see Note) for the

2. first switch cable.

Note: Labels should not be obscured by the connector module or switch cabinet 25-pair connector retainers.

Connect male end of switch cable to appropriate carrier slot and dress down side of cabinet.

Route the cable from the switch cabinet through the cable slack manager and store

slack. Rotate Z5A Retainer located at the connecting unit insert to the open position.

2-74

AT&T 75, 75 XE Wiring Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

ORGANIZATION

Use of Guide

Equipment

GENERAL

CROSS-CONNECT HARDWARE SELECTION

WIRING HARDWARE CHANGES

PLANNING

Job Aids

Terminals

Site or Satellite Closets

Cabling Facilities

2. Z100-TYPE HARDWARE—SYSTEM 75 AND SYSTEM 75 XE INSTALLATIONS

GENERAL

Z100-TYPE HARDWARE

Connector Modules

Z100A1 Connector Module

Z100B1 Connector Module

Connecting Units

Cords

ZD6A-87 Patch Cords

ZD2A-87-10 Power Adapter Cords

Associated Hardware

Cable Slack Managers

General

Z113A Housing

Z114A Housing

NETWORK INTERFACES

RJ21X Network Interfaces

RJ2GX Network Interfaces

1.544 Mbps Digital Service Interfaces

SNEAK FUSE PANELS

575-4 Sneak Current Fuse Assembly

TRUNK/AUXILIARY FIELD

Cable Access Panels and Emergency Transfer Units

400A Apparatus Mounting

400B Apparatus Mounting

400C Apparatus Mounting

TRUNK CONCENTRATOR CABLES

WP-90929, List 2, Cable Assembly

WP-90929, List 4, Cable Assembly

16-PORT ANALOG LINE BOARD ADAPTER CABLE

4-PORT MET LINE BOARD CONCENTRATOR CABLE

ADJUNCT POWER UNITS

Individual Power Supplies

Bulk Power Supply

346 Modular Bulk Power Supply

EQUIPMENT ROOM DESIGN

Typical System Equipment Room Floor Plans

General

Typical Floor Plans

Single-Section Cross-Connect Field

Mult-Section Cross-Connect Field

Wall Space Requirements

Single-Section Cross-Connect Field

Multi-Section Cross-Connect Field

Equipment Requirements

Connector Module, Patch Cord, and Cable Slack Manager Requirements

Cable Access Panel Requirements

Trunk Circuit Capacities

Selecting the Cable Access Panel

EQUIPMENT ROOM HARDWARE AND CABLING INSTALLATION

Hardware Installation

Installing the Cross-Connect Field

Installing Cable Slack Managers

Labeling the Cross-Connect Field

Main Cross-Connect Field

Multi-Section Cross-Connect Field

Installing the Cable Access Panels (CAPs)

Labeling the Cable Access Panel

Installing the Sneak Fuse Panels

Cable Installation

Labels

Routing Cable Guidelines

General

Routing Cables From Switch Cabinet to Cross-Connect Field