Classic Controller Option Code "N" The classic control board offers a range of simple command protocols such as analog signals (±10 VDC, 4-20 mA), digital signals (preset positions, RC PWM), and RS-232 serial. The N-controller is ideal for applications ranging from laboratory research to industrial automation and unmanned vehicles.

Industrial Controller Option Code "P" The industrial control board offers a 4-20 mA input and an isolated 4-20 mA output for simple and robust communication with new and existing PLC systems. The industrial control board can also be provided a ±10VDC command signal, and has an RS-422 full duplex serial connection for more reliable communication in harsh environments compared to the classic controller.