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.

The XLR or Cannon is a type of connector that usually connect balanced lines. In fact, it is more balanced connector used for professional audio applications, and is also the standard connector used in entertainment lighting equipment to transmit the digital control signal "DMX". His nickname cannon, for which he is best known in Spain is that the first to be used in this country, were made by theITT/CANNON brand, and carried "cannon" stamped on the chassis. It has three pin plug and European standard for audio signals is as follows: for the earth or mesh. for one-phase signal, known as a living or hot to the back or push-pull signal, known as return or cold. It is available in version 3-pin and 5-pin.

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.