The Protothrottle receiver is an Xbee device that listens for signals directly from the Protothrottle. No other translators or devices are needed, the protothrottle talks directly to this device. It outputs a logic level DCC signal that is then boosted to the required voltage using our DCC Power Amplifier. In addition to DCC, it also offers 3 servo outputs that can be mapped as throttle and direction for Live Steam locomotives. Alternatively, these can also be used to trigger servos for the front and read couplers of diesel locomotives.