Nortel Networks 1000 User Manual
Page 107
107
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NT1R20 Off-Premise Station Analog
Line card
Contents
This section contains information on the following topics:
“Physical description” (page 109)
“Functional description” (page 111)
“Electrical specifications” (page 123)
“Connector pin assignments” (page 131)
“Configuring the OPS analog line card” (page 132)
Introduction
The NT1R20 Off-Premise Station (OPS) analog line card is an intelligent
eight-channel analog line card designed to be used with 2-wire analog
terminal equipment such as analog (500/2500-type) telephones and analog
modems.
The NT1R20 Off-Premise Station (OPS) analog line card provides
eight full-duplex analog telephone line interfaces. Each line has integral
hazardous and surge voltage protection to protect the system from
damage due to lightning strikes and accidental power line connections.
This card is normally used whenever the phone lines must leave the
building in which the switch is installed.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.