Lucent DDM-2000 OC-3 User And Service Manual page 744

363-206-285
Issue 2, February 2000
9. Trouble in frame ground or battery return. Frame ground and battery return
should be at about the same potential (traceable to the same source). Find
and correct problem.
10. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
11.
NOTE:
Unseating and reseating SYSCTL circuit pack performs a reset
procedure which restarts the software program.
Unseat and reseat SYSCTL circuit pack or use reset command. Do not
press UPD/INIT pushbutton.
12. Is trouble cleared?
If YES, then STOP. YOU HAVE COMPLETED THIS PROCEDURE.
If NO, then continue with Step 13.
13. !
CAUTION:
Replacing the SYSCTL involves updating the internal memory on the
circuit pack.
Replace the SYSCTL (DLP-501).
14. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
DDM-2000 OC-3 M
Trouble Clearing:
ULTIPLEXER
TAP-121
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