ANSI E1.17 This video is a brief synopsis of our largest, most complex standard: ANSI E1.17. That standard 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's big: about 2 megabytes as a ZIPped archive of PDFs and a directory of related DDL files as DDL and HTML. Viewers of the video can find out where to download the standard for free, courtesy of ProSight Specialty Insurance.