Originating the world of stage and performance lighting, and now widely adopted across architectural applications, DMX (Digital Multiplex) is an internationally recognised protocol used to control lighting. In accordance with ANSI and maintained by ESTA, it is not proprietary technology and therefore not limited to one manufacturer.
DMX512: ANSI E1.11 is a serial protocol, allowing you to connect the controller directly to the device you want to control. It is a protocol asynchronous serial communication based on the RS-485 protocol, operating at 250 kbps it can send information to up to 512 channels in a single DMX-512 channel with 1 byte
of data per channel.
An enhancement to DMX512 called RDM is also available in some ETC products for remote configuration of devices. Topology & Connectors Figure. 1