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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 10-791MAINT (EPN Maintenance Circuit Pack)
10
FAIL Expansion Interface circuit pack could not reset the EPN Maintenance
circuit pack.
For duplicated Expansion Links in the EPN:
1. The Standby Expansion Interface circuit pack may be defective and,
thereby, preventing the Active Expansion Interface circuit pack from
resetting the EPN Maintenance circuit pack. Unplug the Standby
Expansion Interface circuit pack, and attempt to reset the EPN
Maintenance circuit pack using the test maint long command. If Test
#306 passes, replace the Standby Expansion Interface circuit pack,
and attempt the reset test again. If Test #306 fails, then replace the
Standby EPN Expansion Interface circuit pack.
2. The Active Expansion Interface circuit pack may be defective and
unable to reset the EPN Maintenance circuit pack. To determine which
is the Standby link, enter the status system command from the
Manager I (G1) or G3MT terminal. Switch links by entering the set
expansion-link command followed by the 4-character Expansion
Interface circuit pack location for the Standby link. Now reset the EPN
Maintenance circuit pack again by using the test maintenance long
command. If the test passes, the problem is with the known Standby
Expansion Interface circuit pack. Repeat Step 2 to determine if the
Standby Expansion Interface circuit pack should be replaced.
3. Replace the EPN Maintenance circuit pack, and run the test again. If
the test passes, the problem is with the EPN Maintenance circuit pack.
Switch Expansion Links, and run the test again. The test should pass
with both Expansion Interface circuit packs being active.
4. If the B carrier Expansion Interface circuit pack is active, the ribbon
cable connecting the Expansion Interface circuit pack and the EPN
Maintenance circuit pack may be defective. Check the ribbon cable to
make sure it is connected properly and is not damaged.
For single Expansion Links in the EPN:
1. Replace the EPN Maintenance circuit pack, and run the test again. If it
passes, the problem is with the EPN Maintenance circuit pack.
2. If the test fails, replace the Expansion Interface circuit pack. If the
tests passes, the problem is with the Expansion Interface circuit pack.
3. If the test still fails, the problem is with the serial link wired into the
backplane of carrier A.
Table 10-264. TEST #306 EPN Maintenance CP Reset Test — Continued
Error
Code
Test
Result Description/Recommendation
Continued on next page