Nortel Networks NN43001-301 - Manual (Page 183)

Dedicated mode using leased line 183
Figure 70
ISL in shared mode
Dedicated mode using leased line
In this configuration, the D-channel connects the DCHI or MSDL to a
modem which communicates with a far-end modem over a dedicated leased
line. See
Figure 71 "ISL dedicated mode, using leased line" (page 183) . A
2400 baud D-channel can support signaling for approximately 382 (T1) or
480 (E1) trunks without non-call associated messages.
Both modems should be set in the synchronous mode.
Figure 71
ISL dedicated mode, using leased line
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
.