Filter
Top Products
DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-47The 703A Data Service Unit (DSU)
21
Other Physical Features
Jacks
The DSU contains four jacks. The handset cord jack is on the bottom of the DSU
housing just under the left side of the housing. The mounting cord jack and the
audio cord jack are on the bottom of the DSU housing just under the rear of the
housing. The RS-232-C connector is on the rear of the DSU.
Mounting Options
The optional 703A Data Service Unit Data Module Base is installed on the 7406D
Voice Terminal. When the 7406D is equipped with the DSU, it cannot be wall
mounted.
Color Options
The DSU is available in black only.
Capabilities
The 703A DSU provides the following features and capabilities:
■ Selector for standard data rates of 0.3, 1.2, 2.4, 4.8, 9.6, and 19.2 kbps
■ Asynchronous full-duplex operation
■ Automatic answering of data calls
■ Data terminal keyboard dialing
■ Parity switch (even / odd)
■ Disconnect sequence switch (escape, break)
■ Quiet option switch
■ Button for self-test and data call disconnect
■ Simultaneous voice operation
■ Speed matching to a lower speed of remote data endpoint
■ Remote loop test (from a distant data module)
■ EIA RS-232-C interface
■ Appearance of dialed number on the DTE screen (7406D02A only) during
data call setup with the ASCII DTE
■ Display features for the 7406D02A on the attached CRT