Below is the detailed schematic of the open collector digital output, which is configured as current sourcing.

Schematic:

Schematic of Sourcing current Open collector

Notes:

The open collector output is current limited by the internal current limiting resistor. Use the following formula to understand the maximum current that can be sourced:


Vopto / 4700 = Iout


Vopto :  the opto voltage input

 Iout : the maximum current that will flow in Amps, then the output is shorted to opto gnd. 


Actual current may be lower based on the external circuit connected.

Example wiring:

Example of connection to OSRC


Applies to:

JBD-4EX-I26 general I/O pin configured as sourcing and output.

I/O Config for source current