User's Guide

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Connecting the Reader
12.2 Connecting Digital Inputs and Outputs of the ARU 2400 Reader
The activation and evaluation of the inputs and outputs is carried out using the ReaderStart V3 software, with the DLL sup-
plied or by access to the reader protocol.
Printed circuit board connector, 5-pole,
screw connection with tension sleeve
1 2 1 8 1 5
Pinout general purpose input output
Pin Allocation
1 GND OUT_CMN
2 INPUT_1
3 INPUT_2
4 OUTPUT_1 (open drain)
5 OUTPUT_2 (open drain)
Fig. 18: Allocation of the GPIO interface cable
The digital inputs and outputs are provided via a printed circuit board connector, 5-pole with open screw connection
with tension sleeve. It is possible to use an industrial isolated wire with a diameter of > 1mm².
The inputs are electrically isolated from the power supply of the reader. The outputs are also DC-isolated from the power
supply of the reader and have a common pin (GND OUT_CMN).
NOTICE
Risk of malfunction!
► Note that the load per channel is limited to a maximum of 0.190 A. The inputs and outputs are
designed for 30VDC max.
► For further information, see the reader data sheet.
Input 1
Input 2
Input 1
Input 2
GND OUT_CMN
+UB_extern
GND_extern
ARU 2400
Fig. 19: DC-isolated inputs