Connecting To A Lighting Controller - Matrox Iris GT with MIL Manual

90 Appendix D: Using the I/O signals and controlled-current output of Matrox Iris GT

Connecting to a lighting controller

You can control an illuminator with a lighting controller that is connected to
auxiliary output signal 4 or 5 of your Matrox Iris GT. For example, you can
control a LED lighting device (such as a ring LED) that is connected to a lighting
controller.
❖ Note, to connect a LED lighting device directly to your Matrox Iris GT, see the
Powering and controlling a LED lighting device with controlled-current output
section, later in this appendix.
Your Matrox Iris GT can generate a standard strobe signal to control a lighting
controller. You can route the strobe signal to either auxiliary output signal 4 or 5,
Connect the auxiliary output signal (for example, AUX(STB)_OPENC_OUT5)
directly to the lighting controller's trigger input. Connect the ground of the
lighting controller and the ground of your Matrox Iris GT to a common ground.
In this connection, you also need an additional voltage source and depending on
the voltage source, either a pull-up resistor or a voltage divider between your smart
camera and the lighting controller.
• If the voltage source outputs the amount of voltage expected by the lighting
controller, you need to add an external pull-up resistor. The external resistor pulls
the voltage up to the external power supply's voltage (+V ).
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