Avaya Definity SI Maintenance Manual page 1588

Maintenance Object Repair Procedures
Table 10-295. TEST #336 Expansion Interface Reset Test — Continued
Error
Code
3
10-802 Issue 4 May 2002
Test
Result
FAIL The reset over the optical fiber failed.
1. Execute the test board PCSS command on the PPN
neighbor Expansion Interface circuit pack located on the
opposite end of the fiber from this Expansion Interface
circuit pack. If Test #238 does not pass, follow the
maintenance procedure associated with this test result.
Then perform the reset again.
2. If the Expansion Interface circuit pack is in the EPN,
temporarily remove the EPN Maintenance circuit pack.
3. Repeat the reset board PCSS command.
4. Reinsert EPN Maintenance circuit pack if it was removed.
5. Follow the procedure described in the "Relationship
Between Expansion Interface and Tone-Clock Circuit
Packs" section if the symptoms match those described
there.
6. Check the Hardware Error Log for the EPN Tone-Clock
errors that were resolved about when the EPN went down.
These EPN Tone-Clock errors may have been resolved
BECAUSE the EPN went down. When there is no
Tone-Clock generating the system clock on an EPN, then
an Expansion Interface circuit pack can only be reset
once. All subsequent reset attempts fail. It is also possible
that the system itself may have already tried to reset the
Expansion Interface circuit pack. Refer to the TONE-BD
(Tone-Clock) Maintenance documentation for
recommended maintenance strategy for Tone-Clock
problems.
7. If the reset still fails, execute the Manual Loop Back
Procedure on the opposite PPN Expansion Interface
circuit pack. This procedure is described in the section
preceding the "Hardware Error Log Entries and Test to
Clear Values" table for this MO. If the Expansion Interface
circuit pack and the lightwave transceiver are healthy, the
problem must lie with the Expansion Interface circuit pack
and its lightwave transceiver on the EPN end of the fiber or
with the fiber itself. Test the EPN Expansion Interface
circuit pack with the manual loop back procedure and
investigate the test results.
Description/Recommendation
Continued on next page
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