This document contains the details of the standard ANSI/ASHRAE 135-2008/ISO 16484-5 which defines a data communication protocol for building automation and control networks. It applies to a comprehensive set of building system operations including HVAC control, lighting control, physical access control, and energy management. It defines an object-oriented information model and application services that are transmitted over a variety of local and wide area networking technologies.
More Information on this standard can be found here.
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