Nortel NT1R20 Description page 33

Description Page 9 of 290
NT8D02 Digital Line Card
The NT8D02 Digital Line Card is an intelligent 16-channel digital line card
that provides voice and data communication links between a Meridian 1
switch and modular digital telephones. Each of the 16 channels support
voice-only or simultaneous voice and data service over a single twisted pair
of standard telephone wire.
NT8D09 Analog Message Waiting Line Card
The NT8D09 Analog Message Waiting Line Card is an intelligent 16-channel
analog line card designed to be used with 2-wire terminal equipment such as
500/2500 type analog phones, modems, and key systems. This card can also
provide a high-voltage, low-current signal on the Tip and Ring pair of each
line to light the message waiting lamp on phones equipped with that feature.
Line cards Description