See figure 147 on, With su – Nortel Networks Circuit Card User Manual
Page 638
Page 638 of 906
NT8D15 E&M Trunk card
553-3001-211 Standard 3.00 August 2005
Figure 147
Paging trunk operation
Typical customer-
provided external
equipment
Cross
connect
System
NT8D15
E&M
Trunk Card
Unit 0
Unit 1
Unit 3
NT8D37
IPE Module
MDF
0T
Slot 0
A
26
(W-BL)
0R
1
(BL-W)
0A
27
(W-O)
0PG
2
(O-W)
Module
I/O Panel
Connector
Part of
25-pair
cable
553-AAA1152
Audio
pair
Signal
pair
K2
Bat
Bat
Amplifier Speaker
Tape
recorder,
radio, etc.
Micro-
phone
K3
Microphone
contacts
K3
Bat
K3
K2
K2
K1
K1
K1
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