It is used to communicate between 'nodes' (e.g., intelligent lighting instruments) and a 'server' (a lighting desk or general purpose computer running lighting control software).Īrt-Net is a simple implementation of DMX512-A protocol over UDP in which lighting control information is conveyed in IP packets, typically on a private local area network such as Ethernet. Art-Net is a royalty-free communications protocol for transmitting the DMX512-A lighting control protocol and Remote Device management (RDM) protocol over the User Datagram Protocol (UDP) of the Internet protocol suite.