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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-42The Z702AL1 Data Service Unit (DSU)
21
Figure 21-13. A Block Diagram of Z702AL1 Data Service Unit Interfaces
Applications
The Z702AL1 DSU can be used with a 7407D01B voice terminal connected to the
DEFINITY Communications System Generic 1, Generic 2, and Generic 3, the
DEFINITY ECS, System 75, and System 85. Typical applications are users with
data terminals requiring a large number of features and lines.
Physical Description
Features
Data Speed wheel
The Data Speed wheel selects the speed of operation. It is located on the right
side of the DSU.
Self-Test light
The Self-Test light is located on the right side of the DSU.
Self-test or disconnect button
The Self-Test or Disconnect button is located on the right side of the DSU.
Parity switch
The parity switch is located on the right side of the DSU.
Data
Terminal
Data
Service
Digital
RS-232C
Unit
DCE
Digital
Voice
Terminal
DCP
Switch
Digital
Line
Port
DTE