Connecting A 3-Wire Npn Proximity Sensor To An Auxiliary Input Signal - Matrox Indio Installation And Hardware Reference

44 Chapter 2: Hardware installation
+
Up to 24V
–
Optional because the auxiliary input signals are optically isolated.
Equivalent circuit only

Connecting a 3-wire NPN proximity sensor to an auxiliary input signal

Connect a 3-wire NPN-compatible device to a Matrox Indio auxiliary input
signal, as shown below.
AUX_IN+
Sensing
Circuit
AUX _IN-
Matrox Indio input operating
in a sourcing configuration
Brown wire
Black wire
Blue wire
3-wire NPN proximity
sensor