User's Manual

A7817A
14
4.4 Wiring the Reader to the Interface Module Using One
Power Supply
The Diagram below shows how to wire the Reader to the Interface Module using a
single power supply. If you are connecting multiple Readers (up to 4), wire them in
parallel using terminal strips TS2 and TS3, following the diagram below. The chart also
shows these connections. Connect the power supply to TS1 as shown.
Reader Interface Module
J2: Pin 1 TS2/TS3: Data B
J2: Pin 2 TS2/TS3: Data A
J2: Pin 3 TS2/TS3: +12-30VDC
J2: Pin 4 TS2/TS3: GND
E1 Earth Ground Tab TS2/TS3: EGND
Note: The earth ground tab E1
on each Reader must be
connected to the mounting
screw in the rear housing as
shown in the diagram.