LED The role of amplifier is a signal repeater in long distance DMX signal transmission , it can reborn and dispatch the DMX signal , make the DMX signal transmit a farther distance and control a broader area . As there might be differences on environment of wiring distribution , usually, every 100m need to connect a signal amplifier .The back-end of the amplifier can connect max 32 nodes℃onsidering the reliability, usually connect max 25 nodes ). The signal amplifier is only applicable to bus-based connections between.