61200.078L1-1
DSU 5600 User Manual
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Chapter 1. Introduction
Chapter 1
Introduction
GENERAL DESCRIPTION
The ADTRAN DSU 5600 is a technologically advanced, high
performance Data Service/Channel Service Unit (DSU/CSU)
that provides the interface between telco provided Digital Data
Service (DDS) and the customer’s Data Terminal Equipment
(DTE).
The DSU 5600 supports both 56 kbps and 64 kbps loop service
rates and provides either synchronous or asynchronous modes
of operation for the DTE interface. When the DTE interface is
configured for synchronous operation, the DSU 5600 matches
the selected loop rate. When the DTE interface is configured for
asynchronous operation, it supports asynchronous data commu-
nications over either a 56 kbps or 64 kbps DDS service. In
asynchronous mode, the DTE can be configured to operate at
any of the standard asynchronous communication rates from 1.2
kbps to 57.6 kbps. All setup or configuration is accomplished
with a single eight position DIP switch that is accessible from
the back panel of the unit.
The DSU 5600 has an industry standard EIA-232 interface
provided on a 25 pin connector.
