Lucent DDM-2000 OC-3 User And Service Manual page 729

TAP-118
: Trouble Clearing
Page 3 of 8
13. Reset circuit breaker (depress pin).
14. Did circuit breaker trip again?
If YES, then continue with Step 15.
If NO, then proceed to Step 35.
15. !
CAUTION:
Exercise care in removing the fiber tray or fiber support bracket to prevent
damage to the optical fibers.
NOTE:
To remove the fan shelf located between two OC-3 shelves it may be
necessary to remove either the fiber tray from the top OC-3 shelf, if it is a
G1 shelf, or the fiber support bracket, if the shelf is a G3 or G4 shelf.
Trouble in fan shelf. Replace fan shelf.
16. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
17. Is CONTROL FAULT LED lighted on fan shelf?
If YES, then continue with Step 18.
If NO, then proceed to Step 20.
!
18.
CAUTION:
Exercise care in removing the fiber tray or fiber support bracket to prevent
damage to the optical fibers.
NOTE:
To remove a fan shelf located between two OC-3 shelves it may be
necessary to remove either the fiber tray from the top OC-3 shelf, if it is a
G1 shelf, or the fiber support bracket, if the shelf is a G3 or G4 shelf.
Trouble in fan shelf. Replace fan shelf within 4 hours of minor alarm indication.
Service interruption and/or circuit pack failure may occur if fan shelf is not
replaced.
19. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
20. Is FILTER REPLACE LED lighted on fan shelf?
If YES, then continue with Step 21.
If NO, then proceed to Step 33.
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285