Issue 5 November 2000 
363-206-208
Equipment and Rear Access Cabling for the DDM-2000 OC-12 Multiplexer
Lucent Technologies - Proprietary
See Notice on first page
NOTE:
TBOS is not available in OC-12, Release 7.
NOTE:
For modem connections to be established with shelves other than shelf 1,
modem cable mults from that shelf to shelf 1 must be in place. Do not skip any
shelves.
(1) Obtain a Group 171, 188 or 172 (D.A.) CIT modem cable listed in Table 2-4 on
page 2-37.
(2) Connect the cable to connector J72 of the shelf.
(3) Route the cable to the side of the bay and down to connector J73 of the shelf
below as shown in Figure 2-15 on page 2-62.
(4) Dress and tie the cables in the bay as close to the backplane as possible with-
out touching any backplane pins.
(5) Repeat this procedure for each shelf that is to have a modem multed to it.
OC-3/OC-12 Bay Intershelf CIT and Modem Without
TBOS Cabling
NOTE:
This procedure is not to be performed for shelves previously multed together with
a TBOS intershelf mult cable. The Group 389 cable contains the mult for the
modem as well as TBOS. This procedure is only for those shelves which are to
have the modem multed without having TBOS multed as well.
NOTE:
TBOS is not available in OC-12, Release 7.
(1) For a DDM-2000 OC-3/OC-12 combined bay application where the DDM-2000
OC-3 shelf (or shelves) CIT and modem without TBOS are to be multed to the
DDM-2000 OC-12 shelf, obtain an ED-8C724-20,Group 548 or 391 (D.A.) CIT
and modem without TBOS cable listed in Table 2-4 on page 2-37 and connect it
to J73 of the DDM-2000 OC-12 shelf.
(2) Route the CIT and modem without TBOS cable to the side of the bay and con-
nect to J58 of the DDM-2000 OC-3 shelf directly above the DDM-2000 OC-12
shelf, as shown in Figure 2-16 on page 2-63.
NOTE:
Multing between additional DDM-2000 OC-3 shelves in the bay is covered in
363-206-204,
DDM-2000 OC-3 Multiplexer Installation Manual
.
(3) Dress and tie the cables as close to the backplane as possible without touching
any backplane pins.
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