Nortel Networks Circuit Card User Manual

Page 315

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NT5D60/80 CLASS Modem card (XCMC)

Page 315 of 906

Circuit Card

Description and Installation

Bell 202 standard. The transmission is implemented by the appropriate PCM
equivalent of 1200 or 2200 Hz.

Upon completion of transmitting the CND data, the CLASS Modem card
sends a message to the system software to indicate successful transmission of
the CND data.

Eight modems can be associated with each module. Table 109 shows time
slot mapping for the CLASS modem card.

Table 109
Time slot mapping (Part 1 of 2)

XCMC mapping of TNs

Modem units on the CLASS

Modem card

TNs

DS30X

timeslot

00
01
02
03

00
01
02
03

module 0, 00

01
02
03

04
05
06
07

04
05
06
07

04
05
06
07

08
09
10
11

08
09
10
11

module 1, 00

01
02
03

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