Nortel Circuit Card 311 Reference page 258

258 NT5D11 and NT5D14 Lineside T1 Interface cards
Figure 50
Lineside T1 interface in off-premise application
Similarly, the Lineside T1 can be used to provide a connection between the
system and a remote Norstar system. See
connection to Norstar system" (page
would not be required if the Norstar system is equipped with a T1 interface.
Copyright © 2003-2008, Nortel Networks
.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Figure 51 "Lineside T1 interface
259). In this case, channel banks