XCMC mapping of TNs
Modem units on the CLASS Modem card
TNs
DS30X timeslot
28
29
30
31
28
29
30
31
04
05
06
07
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 system 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 system software.
System software then sends the CND information to the CLASS Modem card, one byte at a
time, where it is stored in the message buffer. If the CLASS Modem card receives more bytes
than were specified in the initiating message, then the additional bytes are discarded and not
included in the CND memory buffer.
Once all of the CND information is stored in the memory buffer, the CLASS Modem card begins
transmission when requested by the system software. Data is sent one ASCII character at a
time. The CLASS Modem card inserts a start and stop bit to each ASCII character sent.
The transmission of the calling party name/number to the terminating telephone is
accomplished through asynchronous FSK simplex-mode transmission at 1200 bits/second
over a 2-wire loop, in accordance with the 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.
on
page 248 shows time slot mapping for the CLASS modem card.
Table 101: Time slot mapping
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
NT5D60/80/81 CLASS Modem card (XCMC)
248 Circuit Card Reference
July 2011
Summary of Contents for 1000 Series
Page 1: ...Circuit Card Reference Nortel Communication Server 1000 7 0 NN43001 311 04 04 July 2011 ...
Page 20: ...20 Circuit Card Reference July 2011 ...
Page 30: ...Introduction 30 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 116: ...Option settings 116 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 143: ...Figure 25 CP PIV card front Physical description Circuit Card Reference July 2011 143 ...
Page 148: ...NT4N39AA CP Pentium IV Card 148 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 287: ...Figure 86 Clock Controller Option 3 Operation Circuit Card Reference July 2011 287 ...
Page 302: ...NT5K21 XMFC MFE card 302 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 346: ...NT6D80 MSDL card 346 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 353: ...Figure 96 NTDK16 DLC Functional description Circuit Card Reference July 2011 353 ...
Page 461: ...Figure 147 Paging trunk operation Applications Circuit Card Reference July 2011 461 ...
Page 462: ...NT8D15 E and M Trunk card 462 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 500: ...NTAK09 1 5 Mb DTI PRI card 500 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 512: ...NTAK10 2 0 Mb DTI card 512 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 534: ...NTAK79 2 0 Mb PRI card 534 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 550: ...NTBK22 MISP card 550 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 560: ...NTBK50 2 0 Mb PRI card 560 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 595: ...Figure 165 MGC block diagram Introduction Circuit Card Reference July 2011 595 ...
Page 662: ...NTRB21 DTI PRI DCH TMDI card 662 Circuit Card Reference July 2011 Comments infodev avaya com ...
Page 668: ...NTVQ01xx Media Card 668 Circuit Card Reference July 2011 Comments infodev avaya com ...
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