TTRL1 Twin Channel Relay Controller For DC/DCCThis is a twin channel Relay controller which can switch high power loads using control signals from Track Sensors, Mimic Switches, Sensor Signals or DCC accessory commands. Example applications include: Start a coal loading conveyor when the train is in position Remote control of models from the DCC controller Activate a turntable when a train passes a Track Sensor Boost Track Sensor outputs to control motors, solenoids, lamps etc. Automatic Train