LJTick-RelayDriver

The LJTick-RelayDriver (LJTRD) allows 2 digital I/O lines on a U3 or UE9 to control a relay or other moderate load. The 4-pin design plugs into the standard DIO/DIO/GND/VS screw terminal block found on newer LabJacks such as the U3 and UE9. Each DIO controls a switch to ground (i.e. open-collector) that can hold off up to 50 volts and can sink up to 200 mA.