Nortel Circuit Card Installation Manual page 666

Page 666 of 906
Figure 156
Paging trunk operation
System
NT8D37
IPE Module
NT8D14
Slot 0
Universal
Trunk Card
0T
0R
Unit 0
0A
0PG
Unit 1
Unit 7
553-3001-211 Standard 3.00
NT8D15 E&M Trunk card
Cross
connect
Module
I/O Panel
Connector
A
(w-bl)
26
Audio
(bl-w)
pair
1
(w-o)
27
Signal
(o-w)
pair
2
Part of
25-pair
cable
August 2005
K1
Bat
MDF
K1
K1
Typical customer-
provided external
equipment
Tape
Micro-
recorder,
phone
radio, etc.
K2 K3
K2 K3
Amplifier Spea
K2
Bat
Bat
K3
Micropho
contact
553-AAA11