Nortel Circuit Card Installation Manual page 315

NT5D60/80 CLASS Modem card (XCMC)
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
TNs
00
01
02
03
04
05
06
07
08
09
10
11
DS30X Modem units on the CLASS
timeslot
00
01
02
03
04
05
06
07
08
09
10
11
Circuit Card
Page 315 of 906
Modem card
module 0, 00
01
02
03
04
05
06
07
module 1, 00
01
02
03
Description and Installation