About Standalone Tdm Sdsl Termination Units; Tdm Sdsl Overview - Paradyne 7974 User Manual

About Standalone TDM SDSL
Termination Units

TDM SDSL Overview

Hotwire
SDSL) products maximize customer service areas by varying the DSL line rate.
This ensures symmetric DSL connectivity over a wide range of telephone line
distances and transmission line qualities.
Hotwire products support autorate. Units first synchronize to the highest line rate
that the 2-wire loop supports, then automatically configures the unit to the highest
multiple of 64 Kbps supported by that line rate. Eight line rates are available. At all
rates, a 16 Kbps management channel is available, which enables functions such
as firmware downloads to remote units. Units can also be configured manually to
full or fractional T1 or E1 rates.
Hotwire products transport data over a 2-wire, full-duplex circuit over varying
distances based on the conditions of the loop. Using 24 AWG cable, these
TDM SDSL products have a loop reach greater than 14,000 feet (4.6 km) at
2.048 Mbps.
7900-A2-GB21-20
®
Time Division Multiplexer Symmetric Digital Subscriber Line (TDM
December 2001
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