TEKMAND RDM bidirectional signal amplifier supports RDM protocol transmission, with bidirectional data transmission, signal amplification, extending signal transmission distance, enhancing signal driving capabilities, and is equipped with 8 DMX output ports. The input and output ports are photoelectric isolation technology, and the ground wire is isolated from each other to avoid the interference and damage of strong electricity to DMXsignal control, and to avoid crosstalk, reflection and damage to the equipment when the signals are crosstalked, reflected and leakage.