DmxProtocol

Open DMX USB

http://sourceforge.net/projects/opendmxusb/

http://www.opendmx.net/index.php/Open_DMX_USB

http://www.opendmx.net/index.php/ACN

http://en.wikipedia.org/wiki/Architecture_for_Control_Networks

http://www.enttec.com/dmxusb.php

http://dmx512.vanilla.net/

http://www.enttecdmx.nl/?page=catalog&view=product&product_id=65

http://www.lanbox.com/

links
RS485