Lucent Technologies 7820-0802-003 Configuring DSL Connections, Introduction to DSL technologies

Configuring DSL Connections	17
(DSLTNT)

Introduction to DSL technologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-1

DSL configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-4

Configuring switched connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-4

Configuring nailed connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-5

Configuring data transfer rates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-6

Configuring DSLPipe Plug and Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-12

Configuring IDSL voice connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-17

Sample DSL configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-22

Introduction to DSL technologies

Three types of Digital Subscriber Line (DSL) cards are available for the DSLTNT. These cards support either Asymmetric Digital Subscriber Line (ADSL), ISDN Digital Subscriber Line (IDSL) or Symmetric Digital Subscriber Line (SDSL). A summary of each protocol follows.

IDSL overview

IDSL is part of a broad range of MultiDSL™ offerings that let you implement DSL technologies immediately. Because IDSL uses the same 2B1Q signaling used by ISDN, existing ISDN U-interface devices—such as terminal adapters (TAs) or Lucent

Pipelines® products—can connect to a DSLTNT with an IDSL line card without modification.

IDSL supports high-bandwidth applications such as remote access, Internet or intranet access, and telecommuting. This integrated solution provides centralized line terminations to single-pair copper wires for transmission of full-duplex data at 128 Kbps and at distances of up to 18,000 feet (5.5km).

The IDSL DSLTNT provides a separate network that does not congest the “voice network” with data traffic. In this way, the DSLTNT replaces a switch for data traffic. The IDSL line card also provides some of the functionality of a switch for monitoring line quality and troubleshooting the line. As subscriber requirements change, you can use the same platform to add other MultiDSL technologies such as SDSL and ADSL.

By installing the IDSL line card into the DSLTNT, you can cost-effectively support a wide range of analog, ISDN, Frame Relay and IDSL services on a single, manageable platform.

APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide 17-1