Nortel Networks Circuit Card 311 - Manual (Page 318)

318 NT5D60/80/81 CLASS Modem card (XCMC)
For information about the CLASS: Calling Number and Name Delivery
feature, please refer to Features and Services (NN43001-106-B). For
administration and maintenance commands, see Software Input/Output
Reference — Administration (NN43001-611).
Physical description
CLASS Modem cards are housed in NT8D37 IPE modules.
The CLASS modem card circuitry is mounted on a 31.75 cm by 25.40 cm
(12.5 in. by 10 in.) double-sided printed circuit board. The card connects to
the backplane through a 160-pin edge connector.
The faceplate of the CLASS modem card is equipped with a red LED
that lights when the card is disabled. When the card is installed, the
LED remains lit for two to five seconds as a self-test runs. If the self-test
completes successfully, the LED flashes three times and remains lit until the
card is configured and enabled in software, then the LED goes out. If the
LED continually flashes or remains weakly lit, replace the card.
CLASS Modem cards are housed in NT8D37 Intelligent Peripheral
Equipment (IPE) Modules.
The CLASS modem card circuitry is mounted on a 31.75 cm by 25.40 cm
(12.5 in. by 10 in.) double-sided printed circuit board. The card connects to
the backplane through a 160-pin edge connector.
The faceplate of the CLASS modem card is equipped with a red LED
that lights when the card is disabled. When the card is installed, the
LED remains lit for two to five seconds as a self-test runs. If the self-test
completes successfully, the LED flashes three times and remains lit until the
card is configured and enabled in software, then the LED goes out. If the
LED continually flashes or remains weakly lit, replace the card.
Functional description
The CLASS Modem card is designed to plug into any one of the peripheral
card slots of the IPE module. The CLASS modem card supports up to
32 transmit-only modem resources, using a DS30X interface. Up to 255
modems can be configured per system.
The CND transmission process begins with the CS 1000 software sending
an initiating message to the CLASS Modem card indicating the length of the
CND information and the type of the CND information flow to be transmitted.
In response, the CLASS Modem card assigns a message buffer to capture
the CND information from the CS 1000 software.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
.