Avaya S8700 Maintenance Manual page 2312

For multi-connect configurations

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Table of Contents

Maintenance-Object Repair Procedures

Procedure 1: Isolating TDM-Bus Faults

This procedure is an attempt to isolate the TDM-bus fault to circuit packs that are

essential to the system's operation. For each of the following circuit packs in the

port network where the TDM-bus fault appears, perform Procedure 1.

Circuit Pack

MSS/Network Control*

Tone Detector

Expansion Interface

Packet Interface*

1. Display the Alarm Log for the circuit pack via the display alarms

2. If there are alarms for the circuit pack, refer to that section and try to

resolve the alarms.

3. Whether or not every alarm can be cleared, test the TDM bus again via the

test tdm P command.

4. If some TDM-bus tests fail, implement Procedure 1 for the next circuit pack.

5. If every TDM-bus test passes, the problem has been fixed.

6. If every circuit pack in the list has been investigated, go to Procedure 2.

Procedure 2: Removing and Reinserting Port

Circuit Packs

Procedure 2 removes and reinserts port circuit packs (those in the carrier's purple

slots) one or more at a time. Use this procedure for each port circuit pack in the

port network until the problem is resolved or until every circuit pack in the port

network have been tried. To execute diagnostic procedures on the Expansion

Interface and Tone-Clock circuit packs, see

Reinserting EPN Control Circuit

purple slots, procedure 2 does not apply. This procedure does apply to the Tone

Detector circuit pack.

Issue 1 May 2002

Error Log Names

TONE-BD, TONE-PT, and TDM-CLK

SW-CTL and H-ADAPTER

DETR-BD, GPTD-PT, and DTMR-PT

''Procedure 3: Removing and

Packs''. Although these circuit packs reside in

Troubleshooting