Input and Output Signals

Output Signals

The Opto trigger board supports eight output signals. These signals are connected to the trigger outputs of the frame grabber. Please refer to the frame grabber documentation of the frame grabber you are using, and to the trigger system documentation.

The opto-couplers do not directly connect to the output, but are buffered by MOSFET transistors. These transistors build an easy-to-use open collector driver with a 5 mA static current diode as pull-up. Note that the power must be delivered by the external power source.

The polarity of the output signals is NOT inverted.

For more information, see section Schematic Drawings (Input and Output Circuit).

Input Signals

The Opto trigger board supports up to eight input signals. These signals are connected to the trigger inputs of the microEnable IV frame grabber. They are intended to trigger image or line acquisition. Please refer to the frame grabber documentation of the frame grabber you are using, and to the trigger system documentation.

The input signals are not directly passed to the opto couplers but send to differential comparators. The advantage is that the input accepts low current, voltage driven signals between 6 an 25V. (Input signals can have pull up or a pull down resistor of 10k Ohm)

The polarity of the input signals is NOT inverted.