AT&T 75, 75 XE Wiring Manual

AT&T System 75

and System 75 XE

Wiring

Printed in U.S.A.

555-200-111

Issue 1, April 1987

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

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-

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-

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

Figure 1-1. Documentation Block Diagram

1-2

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

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

Figure 1-2. System Uniform Wiring Plan

1-5

1-6

Figure 1-3. Sample Uniform Wiring Installation

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

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

* 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

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

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

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

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

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-

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

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-

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-

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-

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

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-

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-

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-

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

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

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

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

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+ 563 hidden pages

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