This standard defines the use of data interfaces between a host platform and an electro-optic/infrared (EO/IR) system for maintenance and test (M&T) purposes. In particular, this standard defines the use of the data interfaces in order to facilitate the: a. confirmation of system performance and function; b. external initiation of built-in-test (BIT) functions; c. performance of other diagnostic tests of system health; d. downloading M&T data; e. uploading software changes. This standard does not cover mechanical or electrical interfaces, nor does it define the basic platform-to-sensor communication protocols and formats. Furthermore, this standard does not