DEFINITY Enterprise Communication Server Release 9
Installation and Maintenance for Survivable Remote EPN
555-233-121
Issue 2
November 2000
SREPN Maintenance
2-28
Fault isolation procedures
2
12. Busyout the fiber link (busyout fiber-link
number
).
13. Test the fiber link (test fiber-link
number
long).
14. If any tests in the sequence fail, proceed with
‘‘Test the fiber link hardware’’
below.
NOTE:
Test #759 may fail if SNI circuit packs are present.
15. If
all
of the tests pass, clear the alarms by executing test board UUCSS
long clear for all alarmed EXP-INTF circuit packs. Wait 5 minutes for any
SNI-BD, SNI-PEER, FIBER-LK, or DS1C-BD alarms to clear.
NOTE:
Test attempted on the EI circuit pack in the SREPN do not run.
NOTE:
The clear firmware counters [
a-pnc
|
b-pnc
] command for the PNC
that was repaired may be quicker than clearing the alarms with the
test board UUCSS long clear command.
Test the fiber link hardware
For each endpoint of the fiber link:
1. Busyout the circuit pack (busyout board UUCSS).
2. Test the circuit pack (test board UUCSS long) and record all test failures.
When looking at test results, consult the explanations for
page 2-31
and
Figure 2-18 on page 2-32
later in this chapter.
3. Does
Board Not Assigned
display for an Expansion Interface in an
EPN?
a. If
Yes
, use the test maintenance long command to release an
Expansion Interface that may be held reset by an EPN Maintenance
circuit pack.
NOTE:
Tests attempted on the EI circuit pack in the SREPN do not run.
4. If
No
, Did EXP-INTF Test #242 fail?
a. If Yes, replace the EI circuit pack and the lightwave transceiver (if
present) and go back to Step 12 in the
‘‘Gather information’’
procedure above.
NOTE:
EXP-INTF Test #242 runs an on-board looparound if no lightwave
transceiver is connected to the EI.