BS ISO 21806-2:2020

This standard BS ISO 21806-2:2020 Road vehicles. Media Oriented Systems Transport (MOST) is classified in these ICS categories:

• 43.040.15 Car informatics. On board computer systems

This document specifies a part of the application, the application layer, and the presentation layer.

The application covers the

• device model,

• registry management,

• connection management for streaming data,

• diagnosis, and

• error handling.

The application layer covers the structure of MOST messages consisting of

• addressing,

• function block identifiers,

• instance identifiers,

• function identifiers,

• operation types, and

• timing definitions.

The presentation layer covers the definition of data, basic data types and function classes.