Nortel Networks NN43001-301 - Manual (Page 112)

112 NT8D72 and QPC720 PRI card installation
Figure 50
QPC720 (Single Group cabling) for Multi Group systems with an echo canceller
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Copyright © 2003-2007, Nortel Networks
.