AT&T System 75 Quick start guide

AT&T
AT&T System 75
and System 75 XE
Wiring

AT&T
AT&T System 75
and System 75 XE
Wiring
555-200-111
Issue 2, August 1989

Call:
Write:
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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 46219-1385
TO COMMENT ON THIS MANUAL
Call: The AT&T Document Development Organization
Hot Line: 800-334-0404
In North Carolina Call 919-727-3167
While reasonable efforts were made to ensure that the information
in this document was complete and accurate at the time of printing,
AT&T can assume no responsibility for errors. Changes or
corrections to the information in this document may be incorporated
into future reissues.
Published by
The AT&T Documentation
Management Organization
Copyright© 1989 AT&T
All Rights Reserved
Printed in U.S.A.

TABLE OF CONTENTS
Page
CHAPTER 1. INTRODUCTION
General
Organization
Use of Guide
Equipment
System Wiring
Cross-Connect Hardware Selection
Wiring Hardware Changes
Planning
Job Aids
Voice Terminals
Site or Satellite Closets
Cabling Facilities
CHAPTER 2. HARDWARE
(66/110-Type)
General
110-Type Hardware Description
110-Type Wiring Blocks
Index Strips and Connecting Blocks
110A-Type Hardware
110P-Type Hardware
188-Type Backboards
Cords
Jumpers
Tools
F Clip Terminal Insulator
Designation Strips
66-Type Hardware Description
66M1-50 Connecting Block
Connectorized 66-Type Connecting Blocks
Multiple-Mounted 66-Type Connecting Blocks
183-Type Backboards
187B1 Backboard
Power Adapter Cords
Jumpers
Tools
1-1
1-1
1-4
1-5
1-5
1-5
1-9
1-10
1-11
1-11
1-11
1-13
1-13
2-1
2-1
2-3
2-3
2-4
2-7
2-11
2-18
2-18
2-21
2-21
2-22
2-22
2-23
2-23
2-24
2-25
2-26
2-28
2-28
2-29
2-30
i

TABLE OF CONTENTS (Contd)
Page
Bridging Clips
Associated Hardware
Cable Slack Managers
Network Interfaces
Sneak Fuse Panels
Emergency Transfer Units
Trunk Concentrator Cables
2-30
2-31
2-31
2-34
2-34
2-37
2-39
16-Port Analog Line Circuit Pack Adapter Cable (For 110-Type
Hardware Only)
4-Port Met Line Circuit Pack Concentrator Cable
Adjunct Power Units
2-45
2-46
2-47
CHAPTER 3. EQUIPMENT ROOM
DESIGN
General
Hardware Equipment Room Appplications
Trunk/Auxiliary Field
Distribution Field
Typical System Equipment Room Floor Plans
General
Typical Floor Plans
Wall Space Requirements
Equipment Requirements
Equipment Room Hardware And Cabling Installation
Hardware Installation
Installing Cable Slack Managers
Labeling the Cross-Connect Field
Installing Sneak Fuse Panels
Cable Installation
Station Wiring Design
General
Station Circuit Distribution From Equipment Room
Layout
3-1
3-1
3-1
3-1
3-4
3-13
3-13
3-13
3-20
3-21
3-25
3-25
3-32
3-32
3-63
3-64
3-90
3-90
3-98
3-107
ii

TABLE OF CONTENTS (Contd) Page
CHAPTER 4. STATION WIRING
Installation of Station Wiring And Associated Hardware
Installing Station Cables
Installing 110-Type Hardware at Satellite Locations
Installing 66-Type Hardware at Satellite Locations
Installing 4-Pair Station Cables
Installing Information Outlets
Adjunct Powering
Adjunct Powering From the Equipment Room and Satellite
Locations
Adjunct Powering From Site Locations
Adjunct Powering From Information Outlets
Patch Cord/Jumper Installation And Administration
Equipment Room Cross-Connect Field
Satellite Locations
Miscellaneous Wiring Installation
Installing System Access Terminal (SAT)
Installing Attendant Console
Installing Selector Console
Installing lNADS lnterface
Installing DS1 Tie Trunks
Installing Customer-Provided Alarm—System 75 XE Only
Installing Off-Premises Station Wiring
Installing Out-of-Building Station Wiring
Installing Emergency Transfer Units and Associated
Telephones
Installing External Ringing
Installing Queue Warning Indicator
CHAPTER 5. 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
Installing PagePac® Paging System
Installing Music-on-Hold Access
Installing Loudspeaker Paging With Background Music
Installing Recorded Announcement Equipment
4-1
4-1
4-1
4-4
4-9
4-10
4-10
4-12
4-12
4-14
4-16
4-18
4-20
4-23
4-24
4-24
4-25
4-30
4-31
4-33
4-36
4-36
4-37
4-45
4-67
4-68
5-1
5-1
5-3
5-5
5-8
5-11
5-16
5-20
5-22
iii

TABLE OF CONTENTS (Contd)
Digital Announcer
Page
Only
Installing Audichron Wake-Up Announcement System—R1V3
Installing Dial Dictation Equipment
Installing 3270 Data Modules
Installing Processor Data Modules (PDMs)
Installing AP Interface—System 75 Only
Installing AUDIX Interface—R1V3 Only
Installing CMS Interface—R1V3 Only
Installing DCS—R1V2 and R1V3
Installing PMS Interface—R1V3 Only
Installing Customer-Provided Terminal Using ADUs
Installing SMDR lnterface
Installing lSN lnterface
Installing STARLAN NETWORK Interface
Installing Premises Lightwave System (PLS) Interface
Installing Processor Interface/EIA Port
CHAPTER 6. GLOSSARY
CHAPTER 7. INDEX
5-26
5-28
5-32
5-33
5-36
5-39
5-42
5-42
5-43
5-44
5-45
5-45
5-49
5-52
5-53
5-55
6-1
7-1
iv

CHAPTER 1. INTRODUCTION
GeneraI
Organization
Use of Guide
Equipment
System Wiring
Cross-Connect Hardware Selection
Wiring Hardware Changes
Planning
Job Aids
Voice Terminals
Site or Satellite Closets
Cabling Facilities
1-1
1-4
1-5
1-5
1-5
1-9
1-10
1-11
1-11
1-11
1-13
1-13
-i-

Figures
Figure 1-1. Documentation Block Diagram 1-3
Figure 1-2.
System Uniform Wiring Plan
1-7
Figure 1-3. Sample Uniform Wiring Installation
1-8
Figure 1-4. Block Diagram of System 75 or 75 XE Installation
1-10
Figure 1-5. Sample Floor Plan With Voice Terminal Locations
Marked
1-12
Figure 1-6. Riser Cable Placement
1-14
-ii-

CHAPTER 1. INTRODUCTION
CHAPTER 1. INTRODUCTION
General
This guide is one of the three documents (Figure 1-1) required to install
a System 75 or 75 XE switch. This guide describes 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
The main equipment room cross-connect field and the associated
cabling from this cross-connect field to the switch cabinet and/or
8-pin modular wall jacks (information outlets).
All information in this guide is compatible with both System 75 or 75 XE,
except when a statement is made that a topic is strictly for a specific
switch.
The other documents required for the installation of the System 75 or 75
XE are as follows:
AT&T System 75—Installation and Test (555-200-104):
Contains the information required to install and test a System 75
switch and attendant console. For continuity purposes, the
attendant console wiring is covered in this guide.
AT&T System 75— XE Installation and Test (555-201-104):
Contains the information required to install and test a System 75
XE switch and attendant console. For continuity purposes, the
attendant console wiring is covered in this guide.
DEFINITY™ Communications System and System 75, and
System 85—Terminals and Adjuncts, Installation and Tests
(555-015-104)
Contains the information required to install and test
telephones/voice terminals and their associated adjuncts.
1-1

CHAPTER 1. INTRODUCTION
This issue replaces all previous issues of this document. The reason for
reissue is:
●
●
●
●
●
Remove information pertaining to Z100-type hardware.
Combine information for 66- and 110-type hardware.
Add processor/EIA interface connections.
Add digital out-of-building voice terminal connections.
Add connections for System Access Terminal (SAT).
1-2

General
MANUAL
555-015-104
CENTRAL
OFFICE
TRUNKS
TERMINALS
AND
ADJUNCTS
NETWORK
INTERFACE
SNEAK FUSE
PANEL
WIRING GUIDE
(555-200-111)
MANUAL
SWITCH (555-200-104
CABINET
OR
AND 555-201-104)
CONSOLE
AUXILIARY
EQUIPMENT INFORMATION
OUTLET
STATION
WIRING
TRUNK/ MAIN
AUXILIARY CROSS-CONNECT
FIELD FIELD
Figure 1-1. Documentation Block Diagram
1-3

CHAPTER 1. INTRODUCTION
Organization
This guide is organized into seven chapters:
●
●
CHAPTER 1—INTRODUCTION
Presents an overview of the system Uniform Wiring Plan,
general guidelines on hardware selection, and organization
of the guide.
CHAPTER 2—HARDWARE (66- and 110-Type)
Describes the 66- and 110-type connecting blocks and
●
●
●
associated hardware, job planning, equipment ordering
codes, and how to install the hardware.
CHAPTER 3—EQUIPMENT ROOM DESIGN
Describes hardware application in the equipment room,
labeling procedures, and grounding techniques.
CHAPTER 4—STATION WIRING
Describes station and miscellaneous wiring, adjunct
powering, and administration and installation of patch cords
and jumper wires.
CHAPTER 5—AUXILIARY EQUIPMENT
Provides connection information for the various types of
auxiliary equipment that can be used with the switch.
CHAPTER 6—GLOSSARY
Contains a brief description of some of the terms used in this
guide.
CHAPTER 7—INDEX
Contains a permuted index.
●
●
1-4

Organization
Use of Guide
This guide provides information for 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, 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:
1.
2.
3.
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.
Equipment
Most of the items specified in this guide are available through the local
AT&T Marketing Branch Office (MBO). However, some common use
hardware items may have to be obtained from other sources.
System Wiring
System wiring plays a significant role in customers’ information systems.
Technological innovations enable both voice and data transmission to
be provided through the system wiring. Also, the system wiring has
been simplified by reducing the number of cable pairs required by voice
terminals equipped 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 110-type or
66-type hardware.
1-5

CHAPTER 1. INTRODUCTION
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 voice terminal to be located at any
information outlet.
1-6

System Wiring
Figure 1-2. System Uniform Wiring Plan
1-7

CHAPTER 1. INTRODUCTION
Figure 1-3. Sample Uniform Wiring Installation
1-8

Cross-Connect Hardware Selection
Cross-Connect Hardware Selection
For new wiring installations, the following cross-connect hardware is
available for use in the system. Each item lists certain considerations
that should help to select the appropriate hardware.
1. 110P Hardware
2. 110A Hardware
●
●
●
●
Patch cord design allows customer to administer
cross-connections
Requires some technical skill to administer cross-connections
Design does not permit customer participation in
cross-connect administration—requires technically skilled
personnel to administer cross-connections
Hardware is less expensive than the patch cord systems, but
installation and administrative costs are greater
3. 66-type Hardware
●Design does not permit customer participation in
cross-connect administration—requires technically skilled
personnel to administer cross-connections
●Hardware is less expensive than the patch cord systems, but
installation and administrative costs are greater
Obviously, the customer’s interest and preference for administering
cross-connections (because of likely lower total annual costs, as well as
the capability to administer the cross-connections at the most convenient
time) should be given primary consideration in recommending
cross-connect hardware.
Figure 1-4 shows a block diagram of the equipment required to install a
System 75 or 75 XE switch. The sites shown in Figure 1-4 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.
1-9

CHAPTER 1. INTRODUCTION
Figure 1-4. Block Diagram of System 75 or 75 XE Installation
Wiring Hardware Changes
All jobs engineered by PSCs based on customer requirements and
preferences should not be redesigned by the Field Services
Organization (FSO) without approval by the PSC/MBO. If changes are
required, a change order must be issued to ensure correct billing.
1-10

Planning
Planning
The following information will help you design a uniform wiring plan with
growth potential. The plan is simple, flexible, easy to administer, and
reasonable in cost.
Job Aids
Blueprints (floor plans) are important when planning, designing, and
installing station wiring. The floor plans (Figure 1-5) provide a complete
and cabling.
Voice Terminals
view of all conduit and other cabling facilities in the building. These
facilities should be considered when planning site or satellite locations
The number of information outlets to be installed per voice terminal
location is determined by customer requirements. It may be
advantageous to install any additional information outlets required for
future growth or voice terminal rearrangements during the initial
installation.
To begin designing the station wiring, show the following information on
the floor plan(s):
●
●
Location of each information outlet and associated voice terminal
type if known (analog, hybrid, or digital)
Any associated voice terminal adjuncts or modules and the
required powering arrangements.
1-11