Lucent DDM-2000 OC-3 User And Service Manual page 613

TAP-101
: Trouble Clearing
Page 7 of 10
6.
NOTE:
The alarm level for incoming DS3/EC-1 signal failure may be set for
Critical. The set-t3: (DS3) or set-ec1: (EC-1) command is used to
set the alarm level.
Is the FAULT LED on any DS3/STS1E circuit pack flashing?
If YES, then continue with Step 7.
If NO, then proceed to Step 9.
7. Issue a trouble report of a bad incoming DS3 (EC-1) signal from DSX-3
(STSX) cross-connect point. Clear trouble using local procedures. If no trouble
found, replace DS3/STS1E circuit pack at near end.
Reference: DLP-523
8. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
9. Is FAULT LED on an OLIU circuit pack lighted or flashing?
If YES, then do TAP-111 if linear extension.
Do TAP-119 if ring configuration.
If NO, then continue with Step 10.
10.
NOTE:
Failure of both the service and protection TGS, TG3, MXRVO, STS1E,
DS3, or TMUX circuit packs will activate a Critical alarm.
Are the FAULT LEDs lighted (not flashing) on a service and protection circuit
pack of the same type?
If YES, then continue with Step 11.
If NO, then proceed to Step 18.
11.
NOTE:
Alarm may be caused by circuit packs inserted into the wrong slots or by
invalid or wrong switch settings on the TGS/TG3 circuit packs.
Are circuit packs installed in the correct slots?
If YES, then proceed to Step 14.
If NO, then continue with Step 12.
12. Remove circuit packs from wrong slots, check option switches (DLP-513) and
reinstall circuit packs into the correct slots.
13. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285