Lucent Technologies DDM-2000 OC-3 User Manual

363-206-285 Trouble Clearing: TAP-113
Issue 2, February 2000 Page 1 of 6
DDM-2000 OC-3 MULTIPLEXER
Clear Obscure Minor (MN) Alarm
1. Perform an LED test by depressing the ACO button or using the test-led:
command from a CIT.
Reference: DLP-509
2. Did any circuit pack fail the LED test?
If YES, then do TAP-115.
If NO, then continue with Step 3.
3. Is this site a remote terminal location with separate J1C182BA Power Shelf
and/or fan unit?
If YES, then continue with Step 4.
If NO, then proceed to Step 5.
4. Look for blown fuses and/or lighted LEDs on the battery shelf, battery charger,
or fan assembly. Is there any indication of trouble?
If YES, then do TAP-114.
If NO, then continue with Step 5.
5. Is a CIT available?
If YES, then proceed to Step 11.
If NO, then continue with Step 6.
6.
NOTE:
Unseating and reseating the SYSCTL performs a reset procedure which
restarts the software program.
Unseat and reseat SYSCTL circuit pack. Do not depress UPD/INIT button.
7. Is the MN alarm LED still lighted, after about 1 minute?
If YES, then continue with Step 8.
If NO, then STOP. YOU HAVE COMPLETED THIS PROCEDURE.
DLP-509
TAP-115
TAP-114

Lucent Technologies DDM-2000 OC-3 Specifications

General

Brand	Lucent Technologies
Model	DDM-2000 OC-3
Category	Multiplexer
Language	English