Nortel Circuit Card 311 Reference page 799

When used in the Paging mode the trunk circuit is connected to a
customer-provided paging amplifier system. When the trunk is accessed by
dial up or attendant key operation, it provides a loop closure across control
leads A and B. In a typical application, it transfers the input of the paging
amplifier system to the transmission path of the Trunk.
Figure 260
Paging trunk operation
Copyright © 2003-2008, Nortel Networks
.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Applications 799