AT&T System 85 Data Speed wheel, Self-Test light, Self-test or disconnect button, Parity switch

Z702AL1 Data Service Unit (DSU)

Data terminal keyboard disconnect

Simultaneous voice operation

Self-Test or Disconnect button

Data Terminal Equipment (DTE) RS-232-C interface

Physical Description

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.

Mounting Options

The optional Z702AL1 DSU Data Module Base is installed on the 7407D01B voice terminal.

Color Options

The DSU is available in black only.

Power

The Z702AL1 DSU is powered by the 7407D01B which, in turn, is powered by a 110-volt AC wall receptacle.

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