Nortel CS 1000 Series Installation And Commissioning Manual page 29

Cross-connecting the MDF
The MDF cross-connects NE-A25B cables connected to SILC and UILC
ports with building wiring connected to ISDN BRI terminals.
Each SILC provides eight four-wire full-duplex ports. These ports
are connected to building wiring to form DSLs. These ports are
polarity-sensitive. Signal polarity must be maintained along each loop.
Each UILC provides eight two-wire full-duplex ports. These ports are
connected to twisted pair building wiring to form DSLs. These DSLs are
not polarity-sensitive and, although recommended, it is not necessary to
maintain signal polarity along each loop.
Procedure 9
Cross-connecting SILC and/or UILC ports to the building wiring
Step
Perform the following steps to cross-connect the SILC and/or UILC ports to the
building wiring.
1
2
3
Copyright © 2003-2009 Nortel Networks
.
Action
Identify the card type (SILC or UILC) for a connector on the
MDF. Refer to the IPE or CE module card location form at the
end of this chapter, which shows the card type connected to
each I/O panel connector.
Identify transmit and receive pairs on the top of the labeled
distribution strip for the card type and module type you are
connecting. To identify SILC or UILC ports and their pin
numbers, refer to
UILC pair-terminations for connectors A, E, K, R (12-cable
configuration)" (page 33)
form: NT8D37 IPE module (12-cable configuration)" (page
45), which begins on
UILC pair-terminations for connectors A, E, K, R (12-cable
configuration)" (page
Note: In Table 5 "NT8D37 IPE moduleSILC and UILC
pair-terminations for connectors A, E, K, R (12-cable
configuration)" (page 33)
form: NT8D37 IPE module (12-cable configuration)" (page
45), the cable pair designated T- T+ is the transmit pair
and the pair designated R+ R- is the receive pair of the S/T
interface. The cable pair designated T R is the Tx and Rx of
the 2B1Q full-duplex U interface.
Identify building wires connected to the bottom of the distribution
strip. Refer to the Building Cable Plan, which identifies wires
between distribution frames and wall outlets. The Building Cable
Plan is developed according to instructions in the "Planning the
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 03.01
11 May 2009
Installing ISDN BRI hardware for line applications 29
Table 5 "NT8D37 IPE moduleSILC and
through Table 11 "Card location
Table 5 "NT8D37 IPE moduleSILC and
33).
through Table 11 "Card location