SMPTE 273M-2003

This standard defines the status monitoring and diagnostics protocol (SMDP) used with a general-purpose communication link that connects to equipment used in the production, post-production, and/or transmission of visual and audio information. The communication link is separate and distinct from the supervisory interface for digital control (ANSI/SMPTE 207M). SMDP may be used when querying equipment for status and diagnostics information.The primary intent of this standard is to establish the protocol between a supervisory controller and associated video/audio equipment. In addition, it seeks to establish a common set of commands that should be used in SMDP-based systems. A provision allows for manufacturer-specific commands in addition to the common set.