Lucent DDM-2000 OC-3 User And Service Manual page 727

TAP-118
: Trouble Clearing
Page 1 of 8
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, or 4 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.
Clear Fan Shelf Alarm
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285