IEC 63044-1:2017 applies to all Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) and specifies the general requirements for these systems and products. This document is applicable (but not limited) to operator stations and other human–system interface devices, devices for management functions, control devices, automation stations and application specific controllers, field devices and their interfaces, and cabling and interconnection of devices used within a dedicated HBES/BACS network. This document provides an overview of the IEC 63044 series. To enable integration of a wide spectrum of applications, the IEC 63044 series covers electrical safety, functional safety, environmental conditions, EMC requirements, and installation and cabling rules and topologies. IEC 63044 is a series of product family standards. Keywords: Smart Homes, Smart Cities, Home automation