Nortel Networks 1000 - Manual (Page 379)

Functional description 379
•
multiplex four 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 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
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.