Card LAN interface
Maintenance data is exchanged with the common equipment CPU over a dedicated
asynchronous serial network called the Card LAN link.
Signaling and control
The signaling and control portion of the Universal Trunk card works with the CPU to operate
the card hardware. The card receives messages from the CPU over a signaling channel in the
DS-30X loop and returns status information to the CPU over the same channel. The signaling
and control portion of the card provides the means for analog loop terminations to establish,
supervise, and take down call connections.
Signaling interface
All trunk signaling messages are three bytes long. The messages are transmitted in channel
zero of the DS-30X in A10 format.
Configuration information for the Universal Trunk card is downloaded from the CPU at power-
up or by command from maintenance programs. Eleven configuration messages are sent.
Three messages are sent to the card to configure the make/break ratio and A-Law or µ-Law
operation. One message is sent to each unit to configure the trunk characteristics.
Operation
Administrators can assign optional applications, features, and signaling arrangements for each
unit on the NT8D14 Universal Trunk card through the Trunk Administration LD 14 and Trunk
Route Administration LD 16 programs or jumper strap settings on the card.
Loop start operation
Loop start operation is configured in software and implemented in the card through software
download messages. When the card is idle, it provides a high impedance toward the CO for
isolation and AC (ringing) detection.
Operation
Circuit Card Reference
July 2011 385
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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