Lucent Technologies 7820-0657-001 - Manual (Page 11)

DSLPipe DSU (SDSL) User’s Guide 1-1
Introduction
The DSLPipe DSU (SDSL) is a modem that allows you to send data across two
dissimilar devices. The unit converts data to an SDSL format and sends it to the
destination device.You can use the unit for high-speed symmetrical data
transmission (from 144 Kbps to 2320 Kbps) on a single copper twisted-pair wire.
Note: You cannot use a DSLPipe DSU for channelized services such as voice
transmission.
The DSLPipe DSU uses 2B1Q line encoding with echo cancellation to transfer at
a high data rate. It also provides high immunity to background noise. The size of
the wire, in part, determines the maximum transmission rate and distance, as
shown in Table 1-1.
Table 1-1. DSLPipe DSU transmission rate
DSLPipe DSU features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
DSLPipe DSU configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
DSLPipe DSU architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Wire gauge Data Transmission Rate (in Kbps) Distance (in feet)
24 2320 12,100
24 768 17,700
26 2320 9,300
26 768 13,700
1