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ACN
From wiki.openlighting.org
ACN - Architecture for Control Networks
Wikipedia article on ACN: http://en.wikipedia.org/wiki/Architecture_for_Control_Networks
ACN is a suite of documents that specifies an architecture, including protocols and language, which may be configured and combined with other standard protocols to form flexible, networked audio, lighting, or other control systems. It can be implemented on networks that support UDP, IP, and related protocols. It is not bound to Ethernet as a transport medium, but Ethernet is an obvious choice.
ACN is being distributed via download as a five megabyte ZIPped archive of 17 PDF and two DDL files. The "hardcopy" is a CDROM; there is no paper version offered.
Article on ACN in PLSN magazine: http://www.plsn.com/index.php?option=com_content&task=view&id=1437&Itemid=101
