Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario

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NT1R20 Off-Premise Station 
Analog Line card 
Contents
This section contains information on the following topics:
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