Introduction; Purpose; How To Use This Manual; Organization - AT&T System 85 Installation And Test

INTRODUCTION
PURPOSE
This manual provides the instructions for installing the remote equipment associated with
System 85. This includes the Remote Module Interface (RMI), with and without a remote
console, and the Remote Group Interface (RGI).
This manual provides instructions for installing and testing the Phase 1 and/or Phase 2 RMI
for all Versions of a Release 2 System 85. A Phase 1 system can place up to 15 module
control cabinets at one or more remote locations. For each remote module control, there
must be a module control at the central location. The remote modules are tied into the rest
of the system by using TN456 circuit packs that channel them through a central module to
the common control.
A Phase 2 system utilizes the RMI carrier to provide up to 30 remote modules with only one
central module control. The remote modules are tied to the central module using TN456
Lightguide Interface circuit packs that channel them through the RMI carrier to the
common control.
The remote console is a feature associated with the RMI. The console requires the use of
two Optically Remoted Peripheral Interfaces (ORPIs) in a fiber-optic link subsystem.
The installation and testing will require limited downtime to each individual module control
cabinet associated with the RMI during installation procedures. Included are instructions
for hardware requirements, cabling details, and general guidelines for installation.
This manual also provides the installation procedures for the Remote Group Interface (RGI)
feature. This feature utilizes the Remote Group Housing (RGH), an ANN15B in the
DS1/MFAT carrier at the central location, and an ANN16B at the remote location. It
utilizes the SN228, SN270, SN238, and ANN17B port circuit packs to provide remote service.
Complete all other installation procedures using AT&T System 85 Installation (555-103-104)
before installing the RMI or RGI.
HOW TO USE THIS MANUAL
A "start to finish" sequence to the installation process is arranged to permit several tasks to
be accomplished at a time. For example, if more than one person is working on the job, one
can work at the remote location while another works at the central location. Some of the
installation processes described in this book may already be in place if the system being
worked on is a new system that was engineered with RMI or RGI in mind.
It is recommended that you become familiar with the contents and organization of this
manual. Make use of the Table of Contents and Index to locate your task.
ORGANIZATION
This manual is divided into the sections described as follows:
• RMI SYSTEM INSTALLATION—The installation procedures for Phase 1 and Phase
2 RMI on an Unduplicated and Duplicated System 85. It also contains the
installation procedures for the remote console.
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