
Card LAN
The card LAN provides a serial communication link for transferring maintenance data and
control signals between the trunk card and the SSC card. The card LAN controls the
microcontroller. The following functions are supported:
• providing card ID/RLS
• reporting self-test status
• polling from the controller card
• enabling/disabling of the DS-30X link
Signaling interface
All signaling messages for the trunk are three bytes long. The messages are transmitted in
channel zero of the DS30X in A10 format.
Configuration information for the E and M trunk is downloaded from the CPU at power up and
by command from maintenance programs. Seven configuration messages are sent. One
message is sent to each unit (4) to configure trunk type, signaling type, balance impedance
etc. Three messages are sent per card to configure the make/break ratio, A/µ-Law
operation.
Signaling and control
The signaling and control portion of the E and M Trunk card works with the system 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 analog loop terminations that establish,
supervise, and take down call connections.
Configuration information for the E and M Trunk card is downloaded from the CPU at power-
up and by command from maintenance programs. Configuration messages are sent. One
message is sent to configure trunk and signaling type. The other messages are sent to each
card to select the make/break ratio and the A-Law and µ-Law modes.
The signaling and control circuits on the card perform the following functions:
• provide an interface between the card and the system CPU
- transmit PCM signals from each of the four units to one DS-30X timeslot in A10
format (ready to send/clear to send—flow control, handshake format)
NT8D15 E and M Trunk card
440 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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