High Quality Content by WIKIPEDIA articles! DMX512 (For "Digital Multiplex with 512 pieces of information") is a standard for digital communication networks that are commonly used to control stage lighting and effects. It was originally intended as a standardized method for controlling light dimmers, which, prior to DMX512, had employed various incompatible proprietary protocols. However, it soon became the primary method for linking not only controllers and dimmers, but also more advanced fixtures and special effects devices such as fog machines and moving lights, and has also expanded to uses in non-theatrical interior and architectural lighting; DMX512 has been used at scales ranging from strings of Christmas lights to electronic billboards.