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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.

DMX512 employs EIA-485 differential signaling at its physical layer, in conjunction with a variable-size, packet based communication protocol. It is unidirectional and does not include automatic error checking and correction.

Developed by the Engineering Commission of United States Institute for Theatre Technology (USITT), the DMX512 standard (For "Digital Multiplex with 512 pieces of information"[1]) was created in 1986, with subsequent revisions in 1990 leading to USITT DMX512/1990.

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The majority of the text on this page is taken from Wikipedia and used under the terms of the
Creative Commons Attribution-ShareAlike License.

The source of the text can be found at http://en.wikipedia.org/wiki/DMX512,
a page which was first created on August 10th, 2003 by Radiojon | View full history

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DMX Controller - DMX lighting controllers
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