Nortel Communication Server 1000S Installation And Configuration Manual page 33

Table 4
UILC port designation labels at the MDF: NT8D37 IPE module (16-cable configuration)
(Part 2 of 2)
8
K TR TR
0 1
9
L TR TR
0 1
10
M TR TR
0 1
11
N TR TR
0 1
12
R TR TR
0 1
13
S TR TR
0 1
14
T TR TR
0 1
15
U TR TR
0 1
Note: The cable pair designated TR is a 2B1Q full-duplex U interface.
TR TR
2 3
TR TR
2 3
TR TR
2 3
TR TR
2 3
TR TR
2 3
TR TR
2 3
TR TR
2 3
TR TR
2 3
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.
ISDN Basic Rate Interface
Installing ISDN BRI hardware
TR TR
4 5
TR TR
4 5
TR TR
4 5
TR TR
4 5
TR TR
4 5
TR TR
4 5
TR TR
4 5
TR TR
4 5
Installation and Configuration
Page 33 of 120
TR TR
6 7
TR TR
6 7
TR TR
6 7
TR TR
6 7
TR TR
6 7
TR TR
6 7
TR TR
6 7
TR TR
6 7
K
L
M
N
R
S
T
U