EN 50491-5-2:2010 specifies requirements for home and building electronic systems (HBES) related to installation and operation in residential, commercial, and industrial environments. It outlines standards for communication protocols, device integration, and interoperability to ensure that systems operate efficiently and reliably. The standard covers the technical specifications for devices used in HBES, including aspects such as communication methods, control functions, and system performance. It aims to provide a framework for ensuring consistent quality and functionality in HBES applications.