Nortel Networks Circuit Card User Manual
Page 313

Page 313 of 906
Circuit Card
Description and Installation
318
NT5D60/80 CLASS Modem card (XCMC)
Contents
This section contains information on the following topics:
Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
The NT5D60/80 CLASS Modem card supports the Custom Local Area
Signaling Services (CLASS) feature. The CLASS Modem card receives
Calling Number and Calling Name Delivery (CND) data and time/date data
from the CS 1000S, CS 1000M, and Meridian 1and transmits it to a line port,
such as a port on an Analog Line card, which delivers the CND data to a
CLASS telephone when presenting the telephone with a new call.
For information about the CLASS: Calling Number and Name Delivery
feature, please refer to the Features and Services (553-3001-306). For
administration and maintenance commands, see the Software Input/Output:
Administration (553-3001-311).
Physical description
CLASS Modem cards are housed in NT8D37 IPE modules.