Lucent Technologies DDM-2000 OC-3 User Manual

TAP-118: Trouble Clearing 363-206-285
Page 1 of 8 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
Clear Fan Shelf Alarm
1.
NOTE:
POWER ON LED not lighted indicates power failure. POWER FAULT
LED lighted indicates a single power feeder failure. CONTROL FAULT
LED lighted indicates fan shelf assembly failure. FILTER REPLACE LED
lighted indicates fan filter needs replacing. FAN FAULT 1, 2, 3,or4 LED
lighted indicates single fan failure. Execute ALARM RESET after failure
is cleared.
Is POWER ON LED lighted on fan shelf?
If NO, then continue with Step 2.
If YES, then proceed to Step 9.
2. Are POWER RESET A and B circuit breakers tripped (pins extended)?
If YES, then continue with Step 3.
If NO, then proceed to Step 7.
3. Reset circuit breakers (depress pins).
4. Did circuit breakers trip again?
If YES, then continue with Step 5.
If NO, then proceed to Step 35.

Lucent Technologies DDM-2000 OC-3 Specifications

General

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