• perform activation and deactivation of DSLs
• provide loopback control of DSLs
Each U interface provides two B-channels and one D-Channel and supports one physical
termination. This termination may be to a Network Termination (NT1) or directly to a single U
interface terminal. Normally this physical termination is to an NT1, which provides an S/T
interface that allows up to 8 physical terminals to be connected. The length of a DSL depends
on the specific terminal configuration and the DSL wire gauge, however, it should not exceed
5.5 km (3.3 mi).
The main functions of the UILC are:
• provide eight ISDN U interfaces conforming to ANSI standards
• support point-to-point DSL terminal connections
• provide channel mapping between ISDN BRI format (2B+D) and Meridian 1 bus format
• multiplex 4 D-channels onto one timeslot
• perform activation and deactivation of DSLs
• provide loopback control of DSLs
Each U interface provides two B-channels and one D-channel and supports one physical
termination. This termination can be to a Network Termination (NT1) or directly to a single U
interface terminal. Usually, this physical termination is to an NT1, which provides an S/T
interface that supports up to eight physical terminal connections. The length of a DSL depends
on the specific terminal configuration and the DSL wire gauge; however, it should not exceed
5.5 km (3.3 mi).
The main functions of the UILC are as follows:
• provide eight ISDN U interfaces conforming to ANSI standards
• support point-to-point DSL terminal connections
• provide channel mapping between ISDN BRI format (2B+D) and CS 1000 bus format
• multiplex four D-channels onto one timeslot
• perform activation and deactivation of DSLs
• provide loopback control of DSLs
Micro Controller Unit (MCU)
The Micro Controller Unit (MCU) coordinates and controls the operation of the UILC. It has
internal memory, a reset and sanity timer, a serial control interface, a maintenance signaling
channel, and a digital pad.
The memory consists of 32 K of EPROM that contains the UILC operating program and 8 K of
RAM that stores interface selection and other functions connected with call activities.
The reset and sanity timer logic resets the MCU.
Functional description
Circuit Card Reference
July 2011 313
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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