Avaya S8700 Maintenance Manual page 2316

Maintenance-Object Repair Procedures
Part 2
1. Run set tone-clock to make the currently active Tone-Clock standby.
2. Run test tdm P to determine whether the TDM-bus fault is still present.
If the TDM-bus fault is gone:
a. Replace the formerly active Tone-Clock circuit pack.
b. Run set tone-clock again to make the new Tone-Clock circuit pack
c. Run test tdm P to determine whether the TDM-bus fault is still
If the TDM-bus fault is still present, replace the new Tone-Clock circuit pack
with the originally suspected circuit pack, and continue with Part 3.
Part 3
This part should be used for each individual circuit pack listed in the previous
table. Run this procedure on every circuit pack in the standby PNC. If the
TDM-bus failure still exists (once every standby circuit pack has been tested),
execute reset pnc interchange, followed by set tone-clock to put the currently
active circuit packs into standby mode so that this procedure can be run on each
of them.
1. Remove the inactive suspected circuit pack.
2. As in Procedure 2, determine whether any backplane pins behind the
removed circuit pack's slot are bent.
3. If the pins are bent, do the following:
a. Remove power as described in the previous warning statement.
b. Straighten or replace the pins.
c. Restore power.
d. Run test tdm P to determine whether the TDM-bus fault is still
e. If the TDM-bus failure has disappeared, reinsert the circuit pack and
8-1594 Issue 1 May 2002
active.
present.
present.
If the TDM-bus failure is still present, the problem is with another
circuit pack. Reinsert the originally suspected circuit pack, and
repeat Part 3 for the next circuit pack.
run the test tdm P command to see if the TDM-bus failure is still
present.
If any of the TDM-bus tests fail, replace the suspected circuit pack.
The procedure is finished.
If not, the procedure is finished.
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