Avaya S8700 Maintenance Manual page 96

Alarms, Errors, and Troubleshooting
Busyout and test board UUCSS long and record every test failure. When
looking at test results, consult the explanations and illustrations of the
tests, which appear at the end of this procedure.
Is Board Not Assigned displayed for an EXP-INTF in an EPN? If yes,
test maintenance long to release an EXP-INTF that may be held reset by
an EPN Maintenance circuit pack.
If No, did EXP-INTF test (#242) fail? If yes, replace the EXP-INTF circuit
pack and its lightwave transceiver (if present), and return to Step 4. [The
EXP-INTF test (#242) runs an on-board loop around if no lightwave
transceiver is connected to the EXP-INTF.]
If No, did SNI test (#757) fail? If yes, replace the SNI circuit pack, and
return to
If No, did SNI test (#756) fail? If yes, replace the SNI circuit pack and its
lightwave transceiver (if present), and return to
If No, did EXP-INTF test (#240) fail? If yes, replace the EXP-INTF circuit
pack, and return to
If No, did Test #238 (EXP-INTF) or #989 (SNI) fail? If yes, replace the
lightwave transceivers and their fiber-optic or metallic cable, and return to
step 4. The faulted component can be further isolated using the
Manual Loop-Back Procedure'' on page
If No, is a DS1 CONV administered on the fiber link? If no, follow normal
escalation procedures.
If Yes, is there an SNI-BD 513 alarmed error (display errors, category =
pnc)? If yes, replace cabling between the SNI circuit pack and the DS1C
circuit pack.
If the alarm persists, replace the DS1C and the SNI circuit packs, and
return to
If No, if the connected circuit pack is an EXP-INTF, did Test #238 fail?
If Yes, replace cabling between the EXP-INTF circuit pack and the DS1C
circuit pack. If Test #238 continues to fail, replace the DS1C and the
EXP-INTF circuit packs, and return to
If No, busyout and test board UUCSS long for both DS1C circuit packs,
and note every test failure or abort.
4-22 Issue 1 May 2002
step 4 of this procedure.
step 4.
NOTE:
If a fiber out-of-frame condition exists and lightwave transceivers are
used, verify that both lightwave transceivers are the same type,
(9823a or 9823b). If not, replace one of the transceivers so that they
match. [A 9823A supports distances up to 4900 feet (1493 m), and a
9823B supports distances up to 25,000 feet (7620 m).]
step 4.
step 4.
4-23.
step 4.
''SNI/EI
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