DMX512, often shortened to DMX (Digital Multiplex), is an electronic protocol used in lighting control of the light show, enabling communication between the teams control their own lights and light sources.

The impedance (Z) is a measure of opposition that a circuit to a current when a voltage is applied. The impedance extends the concept of resistance circuits alternating current (AC), and has both magnitude and phase, unlike resistance, which has only magnitude. When a circuit is powered with direct current (DC), there is no distinction between the impedance and resistance; the latter can be thought csa impedance with zero phase angle.

DMX512, also known as DMX to dry is the most widely used protocol in lighting today. The lighting allows lighting control in shows. The DMX can control multiple light emitting visual elements, such as cannons, strobe lights and others, from a single issuer.