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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-792MAINT (EPN Maintenance Circuit Pack)
10
EPN Maintenance Circuit Pack Serial Link Test
(#337)
This test is destructive.
This test checks the serial link from the Standby Expansion Interface circuit pack
to the EPN Maintenance circuit pack. If there is no Standby link, or the Standby
link is down at the time of the test, this test aborts.
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 10-264. TEST #306 EPN Maintenance CP Reset Test — Continued
Error
Code
Test
Result Description/Recommendation
Continued on next page