RDM (lighting)

Remote Device Management (RDM) is an addition to the DMX512 control protocol for stage lighting equipment, introduced in 2006. DMX512 was developed in the late 1980s as a standard protocol for lighting consoles to communicate with dimmers, but has since been used for more complex applications, including the control of intelligent lighting fixtures. The addition of RDM addresses many of the shortcomings of DMX512, which is unidirectional with no support for metadata.

RDM revises the DMX512 standard to include bidirectional communication, and introduces additional options for the configuration of fixtures over the DMX512 network. RDM is backwards compatible with existing DMX512 devices, and requires few changes to the physical cabling of DMX512 networks.

The RDM standard was developed by the Entertainment Services and Technology Association, and is maintained as ANSI E1.20.

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