Maintenance Object Repair Procedures
555-233-123
10-1034 Issue 4 May 2002
2005 FAIL EPN Maintenance Circuit Pack Reset passed, but the EPN
Maintenance circuit pack did not respond to subsequent
handshake message. Retry this command three more times. If
it continues to fail, the EPN Maintenance circuit pack, the
Active Expansion Interface circuit pack, or the serial link is
defective. To determine which is defective, follow the
appropriate procedures outlined below.
■ Duplicated Expansion Links:
1. Determine which serial link is the Standby by
issuing the status system system technician
command.
2. Switch Expansion Links by entering set
expansion-link PCSS where PCSS is the
4-character Expansion Interface circuit pack
location for the Standby link.
3. Run the Short Test Sequence against the EPN
Maintenance circuit pack. If Test #306 still fails,
replace the EPN Maintenance circuit pack and
retest. Otherwise, follow the error routines for
any errors that are logged by this Short Test
Sequence.
■ Single Expansion Interface Link Switch:
1. Replace the EPN Maintenance circuit pack and
invoke the Short Test Sequence.
2. If the error persists, replace the EI circuit pack,
at a time when the EPN can go down with
minimal inconvenience.
3. If the error still persists, the problem is with the
actual serial link in A carrier backplane and not
with the EPN Maintenance circuit pack.
PASS The Active Expansion Interface circuit pack can reset the EPN
Maintenance circuit pack. This implies the EPN Maintenance
circuit pack, the Active Expansion Interface circuit pack, and
Active serial link are sane. There could still be a problem with
the Standby Expansion Interface circuit pack and Standby
serial link in a High or Critical Reliability system.
Table 10-374. TEST #306 EPN Maintenance CP Reset Test — Continued
Error
Code
Te s t
Result Description/Recommendation
Continued on next page
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