Nortel Circuit Card Installation Manual page 173

Figure 23
OPS analog line card – typical cross connection example
System
NT8D37
IPE Module
NT1R20
Off-premise
Station
Line Card
Unit 0
Unit 1
Unit 2
Unit 3
Unit 7
Note: Actual pin numbers may vary depending on the vintage of
the card cage and the slot where the card is installed.
NT1R20 Off-Premise Station Analog Line card
Module
I/O Panel
Connector
Slot 0
A
(W-BL)
0T
26
(BL-W)
0R
1
(W-O)
27
(O-W)
2
(W-G)
1T
28
(G-W)
1R
3
(W-BR)
29
(BR-W)
4
(W-S)
2T
30
(S-W)
2R
5
(R-BL)
31
(BL-R)
6
Cross-connect
MDF
Tip
Ring
NC
Tip
Ring
NC
Tip
Ring
NC
Part of
25-pair
cable
Circuit Card
Page 173 of 906
OPS or ONS
telephone
connections
553-AAA1117
Description and Installation