About This Document; Intended Audiences - Avaya 6424D+M User Manual

This document follows as closely as possible the guidelines of the AT&T premises distribution system
(PDS) as presented in the Premises Distribtion Systems Phase 1. While the PDS covers all distribution
media (copper and fiber), this document is concerned primarily with the simplified design of the main
distribution frame (MDF) for AT&T System 85 and DEFINITY® Communications System Generic 2
(hereafter abbreviated as DEFINITY Generic 2 or Generic 2). The MDF as discussed in this document
is the major cross-connect field for an installation and is located in or near the equipment room.
This document is intended as a supplement to the AT&T Premises Distribution System Design Guide
(555-400-602) and does not duplicate information in the PDS guide. This document supplies detail only
where the PDS guide does not — that is, on the specifics of designing an MDF and intermediate
distribution frames (IDFs) for System 85 and DEFINITY Generic 2. Therefore, the following topics that
are covered in the Premises Distribution System Design Guide are not covered in this document:
Information outlets (IO) at the workstations
Horizontal subsystem (installation cable)
Riser subsystem (distribution cable)
Campus subsystem (distribution cable)

INTENDED AUDIENCES

This document is intended primarily for the premises services consultant (PSC) who is charged with
designing an MDF and IDF for a System 85 or DEFINITY Generic 2 installation. It also may prove
helpful to those who are charged with designing wiring installations for other systems that link to a
System 85 or DEFINITY Generic 2, or for sales, marketing, and engineering personnel who want to
familiarize themselves with these guidelines.
REASON FOR REISSUE
This document has been reissued to incorporate addenda 1 and 2 into Issue 1. The addenda pages that
have been incorporated into this issue contain new or changed information that is indicated by margin
rule marks | in text. These are changes to the issue 1 document. These changes include new information
about adjunct power and terminal loop lengths, protection devices, synchronization clock, single carrier
cabinet module, TN754B and TN746B to port pack listings, and floor templates.

ABOUT THIS DOCUMENT

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