DPM-RD-PCB The DPM-RD is a DMX 512 PWM Driver PCB. Mates with the DPM4-PCB and will source 4 PWM outputs at +15VDC and 500mA each. Usage examples: control LED's brightness, rapid switching, or PWM driving. Designed to be daisy chained without having to have a separate control board if the same DMX512 channels need more sourcing capabilities. The DPM-RD (if equipped) has a +5VDC regulator on board to supply power to the DPM4-PCB, converting the required +15VDC power supply to +5VDC, thus powering both boards with only one power supply. Also, one +15VDC power supply, properly rated, can supply power to several DPM4-PCB's, optionally using the 'loop' power connectors.