Below shows an example circuit diagram of the digital outputs. All optocoupler digital outputs will be Darlington type.


The opto-supply must be connected to at least +12VDC, but not exceed +48VDC, in order for the digital outputs to operate efficiently.

When activated, the optocoupler switches the voltage from the opto-supply to the digital output. The maximum sink current for digital outputs is 50mA.  Take caution to select the appropriate external resistor so that the current does not exceed 50mA.

When deactivated, the optocoupler will turn off and disconnect the digital output from the opto-supply.