Lucent DDM-2000 OC-3 User And Service Manual page 776

363-206-285
Issue 2, February 2000
2. NOTE:
It may take from 15 seconds to 3 minutes and 25 seconds for the FAULT
LEDs to stop flashing, depending on the setting of the signal degrade
threshold (–5 to –9).
NOTE:
The lightguide jumpers used to loop the OLIUs must be equipped with
®
ST , FC/PC, or SC connectors at both ends, depending on the type of
OLIU connector. See Figures 1, 2, and 3.
NOTE:
The 22F is equipped with ST -type connectors.
NOTE:
The 22F-U, 22F2-U, 22G2-U, 22G3-U, and 22G4-U OLIUs are shipped
with a 0 dB SC-type connector installed on each OLIU. A 0 dB ST -type
connector is shipped loose in the packaging with each OLIU. Optional
SC, ST , or FC 0 dB or attenuated buildouts can be ordered separately
(Table A).
NOTE:
The 22F, 22F-U, 22F2-U, 22G2-U, 22G3-U, and 22G4-U OLIUs require
single-mode lightguide jumpers (Table B).
Replace the 0 dB LBO on the 22F-U, 22F2-U, 22G2-U, 22G3-U, or 22G4-U
OLIUs with a 0 dB LBO with a ST or FCPC connector on the MAIN 1 or
FUNCTION UNITS-( )-1 OLIUs, if required (Table A).
DDM-2000 OC-3 M
Detailed Level Procedure:
ULTIPLEXER
DLP-505
Page 2 of 8