Physical description
The NT8D41BA Quad Serial Data Interface paddle board is a printed circuit board measuring
31.12 by 12.7 cm (12.25 by 5.0 in.). See
Figure 148: NT8D41BA QSDI paddle board
on
page 465.
The QSDI paddle board can be used in a system backplane for a total of four serial ports. Up
to 12 other serial ports can be added by plugging standard serial cards into standard system
slots. The serial ports on the card are addressed as a pair of consecutive addresses (0 and 1,
2 and 3, up to 14 and 15), using switches SW15 and SW16.
The front edge of the card has four serial port connectors, an Enable/Disable switch (ENB
DIS), and a red LED. The LED indicates the card status. It is lit when the following occurs:
• the ENB DIS switch is set to disable
• all four ports are disabled in software
• all four ports are not configured in the configuration record
Functional description
The NT8D41BA QSDI paddle board has four asynchronous serial ports. These serial ports are
connected to the I/O panel in the back of the shelf using special adapter cables. The serial
ports can be used to connect the system to a terminal, a printer, a modem, or to an other system
processor.
The QSDI paddle board design contains four Universal Asynchronous Receiver/Transmitters
(UARTs) and the logic necessary to connect the UARTs to the system processor bus. See
Figure 149: NT8D41BA QSDI paddle board block diagram
NT8D41BA Quad Serial Data Interface Paddle Board
464 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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