Lighting technicians and electrics crews know that they should always terminate their DMX lines. This small terminator is no larger than a standard XLR connector, so it's highly portable. Prevent noise caused by signal reflections by placing a terminator in the output jack of the last fixture in your DMX daisy-chain. A resistor in the terminator will absorb unused energy before it reflects back down the line. Terminators are essential to providing stable data over long cable runs.