page 37). The output bus is used by the system controller for output of control data to the line
card. The input bus is used by the system controller for input of line card status data.
A card LAN link bus is common to all of the line/trunk card slots within an IPE module. This
bus is arranged in a master/slave configuration where the controller card is the master and all
other cards are slaves. The module backplane provides each line/trunk card slot with a unique
hardwired slot address. This slot address enables a slave card to respond when addressed
by the controller card. The controller card communicates with only one slave at a time.
In normal operation, the controller card continually scans (polls) all of the slave cards
connected to the card LAN to monitor their presence and operational status. The slave card
sends replies to the controller on the input bus along with its card slot address for identification.
In its reply, the slave informs the controller if any change in card status has taken place. The
controller can then prompt the slave for specific information. Slaves only respond when
prompted by the controller; they do not initiate exchange of control or status data on their
own.
When an IPE line card is first plugged into the backplane, it runs a self-test. When the self-test
is completed, a properly functioning card responds to the next controller card poll with the self-
test status. The controller then queries for card identification and other status information. The
controller then downloads all applicable configuration data to the line card, initializes it, and
puts it into an operational mode.
Analog line interface units
Once the 8-bit digital voice signal is received by the analog line card, it must be converted back
into an analog signal, filtered, converted from a 4-wire transmission path to a 2-wire
transmission path, and driven onto the analog telephone line.
Figure 4: Typical analog line interface unit block diagram
on page 40 shows a typical example
of the logic that performs these functions. Each part of the analog line interface unit is discussed
in the following section.
Line cards
Circuit Card Reference
July 2011 39
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 ...
Page 700: ......