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 0Unit 1Unit 3NT8D37IPE ModuleMDF
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-AAA115
2
Audio
pair
Signal
pair K2
Bat
Bat
Amplifier Speake
r
Tape
recorder,
radio, etc.
Micro-
phone
K3
Microphon
e
contacts
K3
Bat
K3
K2
K2
K1
K1
K1