Matrox Iris GTX Series, Installation And Technical Reference, Page: 35 / 100

Connecting to the auxiliary I/O interface 35
Connecting an auxiliary output signal to a sinking input
Connect a Matrox Iris GTX auxiliary output signal to a sinking input, as shown
below. In this case, the pullup circuitry is used to source the current to the sinking
input.
Important
In this configuration, the other two auxiliary output signals are not available.

Note that, when connecting a resistive load sinking device instead of an input
sensing sinking device, the same connection would be used as displayed above.
Equivalent circuit only
Optional because the auxiliary output signals are optically isolated.
Up to 24V
+
–
AUX_OUT
AUX_OUT_COMMON
Matrox Iris GTX
Sourcing configuration
Sinking device
COM
INPUT
Input
sensing