Chapter 1. Introduction
61200.128L1-1
Dual DSU-DP User Manual
1
Chapter 1
Introduction
PRODUCT OVERVIEW
The ADTRAN Dual DSU-DP provides a reliable, high
speed data connection for customer data terminal
equipment (DTE) through the ADTRAN TSU/HSU DS0
port. It provides compatibility with digital data service
(DDS), or Switched 56 network (SW56) services. The
Dual DSU-DP supports both synchronous and asynchro-
nous data communication over the DDS or Switched 56
networks.
This unit is an all rate DSU, supporting services from 2.4
to 64 kbps including 19.2 and 38.4 kbps services. The
Dual DSU-DP may be used in either point-to-point or
multi-point circuits.
The Dual DSU-DP provides both V.35 and EIA-232
electrical and physical DTE interfaces through either an
ADTRAN HD-to-RS-232 cable (PN 1200167L2) or
ADTRAN HD-to-V.35 cable (PN 1200167L1) to accom-
modate a variety of applications.
In addition to DDS, the unit also supports Switched 56
(4-wire) service with dialing accomplished from either
the front panel or the DTE interface using either the AT
command set or the V.25 BIS command set. This model
is compatible with AT&T Accunet and U.S. Sprint®
SW56 type services.
