This European Standard defines the mandatory and optional requirements for the medium specific Physical and Data Link Layer of Radio Frequency for HBES products and systems,a multi-application bus system where the functions are decentralised,distributed and linked through a common communication process.
This European Standard is used as a product family standard.It is not intended to be used as a stand-alone standard.
Data Link Layer interface and general definitions,which are medium independent,are given in EN 50090-4-1.