Lucent DDM-2000 OC-3 User And Service Manual page 832

DLP-513
: Detailed Level Procedure
Page 12 of 20
BBG4/BBG4B/BBG19 DS3/BBG20 TMUX
16. Determine from office records the length of the DS3 cabling between the
DDM-2000 and the DSX-3 cross-connect point.
17. NOTE:
The only option settings on the DS3/TMUX circuit pack are the LBO
settings shown in Figure 5. If there are other jumpers on the circuit pack
similar to the LBO jumpers, they are factory test points and should be
ignored.
Install the DS3 option jumpers per Table I and Figures 4 and 5.
18. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
Table I – DS3 LBO Settings
Cable Length (Ft)
734A
Cable
0 to 225
>225 to 450
Figure 4 – BBG4/BBG4B/BBG19 DS3 Option Settings
735A
LBO Setting
Cable
0 to 125 LBO IN
>125 to 250 LBO OUT
DDM-2000 OC-3 M
Issue 2, February 2000
ULTIPLEXER
363-206-285