This is an output and could be used, for example, to drop a screen if a constant +12VDC means "drop" when sent to the screen controller and changing to 0V will imply "raise".

A fine point would be checking the current available from the output and the current required by the controlled item.

For example, if the output port can source 20mA, but the controlled item requires 100mA, this output port cannot control the item.