User`s guide

Pipeline User’s Guide Preliminary January 30, 1998 B-1
B
IDSL Implementations
This appendix contains the following topics:
ISDN Digital Subscriber Line (IDSL)
IDSL is part of Ascend’s MultiDSL™ technology that lets you implement DSL
using existing ISDN equipment when connecting to a MAX or MAX TNT
equipped with an IDSL line card. This integrated solution provides centralized
line terminations to single-pair copper wires to transmit full duplex data at 128
Kbps at distances up to 18,000 feet.
In order to implement an IDSL connection, you must work in concert with your
DSL service provider. All DSL implementations require two units:
• Customer Premises Equipment (CPE), which, in this case, is the newer
Pipeline.
• Central Office Equipment (COE), which must be an Ascend MAX or MAX
TNT with an IDSL line card installed.
Digital Subscriber Line (DSL) is a service that provides a super high-speed
connection that is continuously “up” between your office and the central office.
DSL is generally limited to 18,000 feet. Line speeds actually diminish after about
10,000 feet, but are still able to achieve rates between 760 Kbps and 7 Mbps.
ISDN Digital Subscriber Line (IDSL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Configuring an IDSL connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Making voice calls over IDSL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4