This IEC Standard applies to all Home and Building Electronic Systems (HBES) and Building Automation Control Systems (BACS) and specifies the general requirements for these systems and products covering the following functionalities: - control and command; - voice and stable video transmission - video transfers This IEC Standard provides an overview of this series of Standards. To enable integration of a wide spectrum of applications, This standards series covers: - electrical safety, - functional safety, - environmental conditions, - EMC requirements, - installation and cabling rules and topologies, This series is a product family standard.