Matrox 4Sight GPm Installation And Hardware Reference page 37

Connecting to an NPN-compatible device
To connect Matrox 4Sight GPm outputs to an NPN-compatible device, the
ground of the NPN-compatible device and the ground of Matrox 4Sight GPm
must be connected to a common ground. In addition, an output signal of
Matrox 4Sight GPm must be connected to the device's input.
The load is connected between the output of your Matrox 4Sight GPm and the
positive power supply.
Matrox 4Sight GPm
auxiliary I/O connector
Outputs sink up to 100 mA.
All grounds on this unit share a common ground.
❖ Note that your NPN-compatible device and your Matrox 4Sight GPm unit must
share a common ground.
Power source
up to 24 V
Output
signal
GND
Connecting to the auxiliary I/O interface
NPN-compatible device
+
+V
input
sensing
input
GND
Equivalent circuit only
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