Lucent DDM-2000 OC-3 User And Service Manual page 864

DLP-516
: Detailed Level Procedure
Page 2 of 2
8. Leave the circuit pack unseated and unseat the protection FUNCTION UNITS
circuit pack in slot A-2(P), B-2(P), or C-2(P).
9. Wait 30 seconds.
10. NOTE:
In some offices the critical and major alarms may be wired together if a
separate critical alarm is not available. The following step will activate a
critical (CR) alarm on the User Panel.
Is the critical (CR) or major (MJ) office alarm activated?
If YES, then continue with Step 11.
If NO, then proceed to Step 16.
11. Reseat both circuit packs. Take care to avoid damaging the LEDs protruding
through the openings in the faceplates of the circuit packs.
12. Unseat the protection DS1/DS1PM and a service DS1/DS1PM circuit pack in
the same LOW SPEED GROUP.
13. Is the major (MJ) alarm activated?
If YES, then continue with Step 14.
If NO, then proceed to Step 16.
14. Reseat both circuit packs. Take care to avoid damaging the LEDs protruding
through the openings in the faceplates.
15. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
16. Reseat both circuit packs. Take care to avoid damaging the LEDs protruding
through the openings in the faceplates.
17. The DDM-2000 has failed the alarm test. The most likely source of the problem
is the alarm wiring. Check that the alarms are connected correctly. If the wiring
is correct and the failure persists, refer to Trouble Clearing: TAP-108 to clear
the failure.
18. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285