Lucent DDM-2000 OC-3 User And Service Manual page 686

363-206-285
Issue 2, February 2000
29. Is FAULT LED(s) lighted or flashing?
If FLASHING, then continue with Step 30.
If LIGHTED, then do TAP-106.
30. Trouble is in optical fiber. Clear trouble using local procedures.
31. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
32. Multiple troubles exist which are beyond the scope of this document. Without
knowing the exact LED indications, the alarm and status indications (obtained
with the rtrv-alm: command), or the state of the protection switch (using the
rtrv-state-eqpt: command), this procedure can not go any further.
Use the LED indications, the rtrv-alm: and rtrv-state-eqpt:
commands to analyze the trouble. Look for protection switch locks or inhibits. If
the system is found to be completely out of service, replace circuit packs with
lighted FAULT LEDs. If system is still in-service and a protection switch can
place all service on either the protection or service OLIUs, perform the switch
then replace circuit packs with lighted FAULT LEDs.
If you need technical assistance, notify your supervisor, your local technical
support organization, or call Lucent Technologies RTAC, per local operating
instructions.
33. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
DDM-2000 OC-3 M
Trouble Clearing:
ULTIPLEXER
TAP-111
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