Exp-Intf (Expansion Interface Circuit Pack) - Avaya S8700 Maintenance Manual

For multi-connect configurations

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Table of Contents

Maintenance-Object Repair Procedures

EXP-INTF (Expansion Interface Circuit

MO's Name (in

UU is the universal cabinet number (1–64 for ATM PNC, 1–44 for CSS PNC). C is the carrier designation (A,

B, C, D, or E). SS is the number of the slot where the circuit pack resides (01–21).

If the Expansion Interface (EI) circuit pack you are troubleshooting is

associated with a Survivable Remote EPN (SREPN), before the SREPN can

be returned to normal service, every LAP-D EI link problem must be cleared,

and the SREPN slide switch on the TN2301 (located in the SREPN carrier)

must be manually set to the normal position. See

Service to the SREPN'' on page 8-770

Refer also to DEFINITY ECS Installation and Maintenance for Survivable Remote

EPN, Issue 1, 555-230-102.

Following this introductory description of the Expansion Interface (EI) circuit pack

are sections on the following topics:

''EI In-Service Mechanism''

''Survivable Remote EPN''

''EI and Tone-Clock Interactions''

''Replacing an EI Circuit Pack—Unduplicated PNC''

''Replacing an EI Circuit Pack— Duplicated PNC''

''Expansion Interface Manual Loop-Back Procedure''

Issue 1 May 2002

Initial SAT Command

test board UUCSS s

in this section.

Full Name of MO

Expansion Interface circuit pack

''Restoring Normal

Troubleshooting