SC 3 is a programmable controller with 5 interchange presets and 2 ON/OFF alternate positions, dry contact NC-COM-NO positions.
The 5 dry contacts to be used normally with any 5V level pull down for AV or DMX with dry contact port wherever 2 to 5 positions are required.
The 2 stand alone alternate control knobs can be used for any low voltage AUX control with dual single or 2 separate for each PCB (single selected with jumper).