Lucent DDM-2000 OC-3 User And Service Manual page 901

DLP-523
: Detailed Level Procedure
Page 19 of 30
32. NOTE:
If a signal has previously been applied to the original DS3/TMUX circuit
pack, the FAULT lamp will flash when the new DS3/TMUX is installed
until the signal tests good.
Remove old DS3/TMUX and install replacement DS3/TMUX.
Response:
33. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
Figure 4 – BBG20 TMUX Option Settings
FAULT LED on the DS3/TMUX flashes for about 15
seconds and then goes off.
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285