TO: ALL AT&T INSTALLATION SUPPLIERS



TO: ALL AT&T ENGINEERING SUPPLIERS Date: 01-25-11

EFFECTIVE DATE: 5 days from posted date or as per Supplier’s Contract

Submitter’s Name: Brad Berry

TP: TP76400 Subject: Central Office Equipment Records Action: Add:

Modification: Delete:

Section: 4 Section Title: Central Office Equipment Records

Subsection: 2 Section Title: Central Office Records Description

Subsection: 2.9 Subsection Title: Equipment Numbering Plans for Central Office Equipment

Prior to Change:

2.9.1 The numbering of bays and frames on all CO records shall be consistent with the Floor Plan Record.

2.9.2 Switching equipment shall conform to the manufacturer’s lineup and frame numbering scheme.

2.9.3 New equipment frames or lineups shall be designated numerically. These numbers shall be unique and assigned in accordance with AT&T Space Planning Guidelines.

Post Change:

2.9.1 The numbering of bays and frames on all CO records shall be consistent with the Floor Plan Record. The DESP shall contact the Common Systems Space Planner (CSSP) [Central Office Layout Design (COLD) Capacity Engineer] to reconcile any of the following conditions:

a. No Floor Plan for the bay location specified in the TEO is available from the floor plan data bases identified in this section.

b. The current Floor Plan does not reflect the equipment being installed.

c. The bay/cabinet number(s) specified in the TEO do not match the numbering reflected on the Floor Plan.

Questions relative to this ERCN should be addressed to Lawrence E. Lyles at 404-927-7722

Lawrence E. Lyles

Lead Network Engineering Manager

Lawrence.Lyles@

Access the TP's on the Extranet Site

Concurred

Concurred

Area Mgr Eng Network Quality

Implementation Eng & Common Systems Date: 02-03-11

(Jimmy Davis)

Principal-Network Design Engineer (Subject Matter) Date: 01-25-11

(Tom Weber)

Release Approved

Principal-Network Design Engineer, GES Date: 02-03-11

(Lawrence E. Lyles)

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