Nortel CS 1000 Series Installation And Commissioning Manual page 69

Figure 24
SILC port designation label at the cross-connect terminal
Figure 25
UILC port designation label at the cross-connect terminal
Cross-connecting the DSLs Each SILC provides eight four-wire,
full-duplex ports. These ports connect to building wiring facilities to form
DSLs. Since the DSLs are polarity-sensitive, maintain signal polarity along
each loop as shown in
office wiring" (page 72)
office wiring" (page
Each UILC provides eight two-wire full-duplex ports. These ports connect
to twisted pair building wiring facilities to form DSLs as shown in
"Cross-connecting a UILC port to the office wiring" (page 73)
"Cross-connecting a UILC port to the office wiring" (page
are not polarity-sensitive, and it is not necessary to maintain signal polarity
along each loop.
Procedure 21
Cross-connecting the DSLs at the cross-connect terminal
Step
To cross-connect SILC and/or UILC ports to the building wiring:
1
Copyright © 2003-2009 Nortel Networks
.
Note:
The pair designated TX- TX+ is the transmit pair. The pair
designated RX- RX+ is the receive pair. A SILC port supplies 2 W of
power at -48 V (-40 V for Europe), simplexed over the transmit and
receive pairs. The transmit pair is negative with respect to the receive
pair.
Note:
The cable pair designated T R is a 2B1Q full-duplex U interface.
Figure 26 "Cross-connecting a SILC port to the
on
72).
Action
Identify the card type (SILC or UILC) at the cross-connect
terminal.
Nortel Communication Server 1000
ISDN Basic Rate Interface Installation and Commissioning
NN43001-318 03.01
11 May 2009
Figure 26 "Cross-connecting a SILC port to the
Installation procedures 69
Figure 27
on Figure 27
73). The DSLs