DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-994MAINT (EPN Maintenance Circuit Pack)
9
1205
(cont’
d.)
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.
Interchange the PNC by entering the reset pnc interchange command and
run the test again. The test should pass with both EI circuit packs being
active.
4. If the B carrier EI circuit pack is active, the ribbon cab le connecting the
Expansion Interface circuit pack and the EPN Maintenance circuit pack
may be defective. Check the ribbon cab le to make sure it is connected
properly and is not damaged.
For simplex Port Network Connectivity:
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 EI circuit pack. If the tests passes, the problem is
with the EI circuit pack.
3. If the test still fails, the problem is with the serial link wired into the
backplane of carrier A.
2005 FAIL EPN Maintenance Circuit Pack Reset passed, but the EPN Maintenance circuit
pack did not respond to subseq uent handshake message. Retry this command
three more times. If it continues to fail, the EPN Maintenance circuit pack, the
active EI circuit pack, or the serial link is defective. To determine which is
defective, follow the appropriate procedures that follow.
Duplicated Port Network Connectivity:
1. Interchange PNCs by entering reset pnc interchange.
2. 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 Se quenc e.
Simplex Port Network Connectivity:
1. Replace the EPN Maintenance circuit pack and invoke the Short Test
Sequence against it.
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 EI circuit pack can reset the EPN Maintenance circuit pack. This
implies the EPN Maintenance circuit pack, the active EI circuit pack, and Active
serial link are sane. There could still be a problem with the standby EI circuit
pack and standby serial link in a Duplication Option system.
Table 9-382. TEST #306 EPN Maintenance Circuit Pack
Reset Test — Continued
Error
Code Test
Result Description/ Recommendation
Continued on next page