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24 ISDN Primary Rate Interface equipment overview
MSDL/PRI interface
MSDL can connect to PRI trunks through RS-422 or RS-232 interfaces.
The interfaces are switch configured.
MSDL faceplate
The NT6D80 MSDL has one LED to indicate an active or inactive state and
four external connectors. Each port can be RS-422 or RS-232 connectors,
with either DCE or DTE interfaces. Refer to Figure 4 "NT6D80 MSDL
faceplate layout" (page 24).
Figure 4
NT6D80 MSDL faceplate layout
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
.