Nortel Networks Circuit Card 311 - Manual (Page 749)

Operation 749
Figure 248 "E and M type signaling patterns - originating party release"
(page 766)
shows E and M Type I signaling patterns for incoming and
outgoing calls. Figure 249 "E and M Type I signaling patterns - originating
party release on a tandem connection" (page 767) shows Type I signaling
patterns on a tandem connection where the originating end is senderized
and the route is over a CO trunk (not applicable to CCSA).
Idle state For E and M signaling, in the idle state the M lead is ground
and the E lead is an open circuit.
For E and M signaling, in the idle state the M lead is ground and the E
lead is an open circuit.
For E and M signaling, in the idle state the M lead is ground and the E
lead is an open circuit.
Outgoing calls Outgoing calls are processed as follows:
• The M lead changes from ground to battery.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.