DIN EN 13321-1:2012-12

As for Home or Building Electronic Systems (HBES) this resulting standard provides for the domain of Building Automation and Control System Application and Building Management (BACS) common rules for a multi-application bus system where the functions are decentralized and linked through a common communication process. This standard sets the basic requirements for products and systems . The requirements may also apply to the distributed functions of any equipment connected in a home or building control system if no specific standard exist for this equipment or system. Consequently with its reference to the EN 50090 series this standard sets requirements for the BACS area as regards Architecture and Hardware, Application and Communication of systems based on HBES by specifying the basic requirements.