Nortel Networks Circuit Card Manual De Usuario

 NT1R20 Off-Premise Station Analog Line card

553-AAA1117

NT8D37

IPE Module

Slot 0

NT1R20

Off-premise

Station

Line Card

Unit 0

Unit 7

0T

0R

26

1

27

2

A

MDF

Unit 1

Unit 2

Unit 3

Tip

Ring

Tip

Ring

28

3

29

4

2T

2R

1T

1R

30

5

31

6

Tip

Ring

NC

NC

NC

Module

I/O Panel

Connector

Part of

25-pair

cable

Note:  Actual pin numbers may vary depending on the vintage of 
the card cage and the slot where the card is installed.

(W-BL)

(BL-W)

(W-O)

(O-W)

(W-G)

(G-W)

(W-BR)

(BR-W)

(W-S)

(S-W)

(R-BL)

(BL-R)