How Does Home Automation? Speaking of home automation systems the term BUS system usually refers to a set of all devices connected to the same and unique channel of communication. The fundamental purpose of the BUS is to achieve the most simple physical and logical connection between the devices, minimizing both the number of interconnections is the time required to transfer in a complete way the information between a device and the other. Each said terminal device, station, or node point has the ability to send and receive sequentially electrical signals representing information or messages encoded according to a specific protocol (the Domina home automation uses the proprietary protocol "open" AVEbus). The identification of the recipient of the message is via address matching that is an integral part of every message. This address is assigned to each device via a special configuration procedure. The growing demand for control systems and automatic control in a modern building requires the installation of complex wiring and often leads to saturation of the initial capacity. This inevitably complicates the installation of new functions and the maintenance or upgrading of existing ones, which often only becomes possible with costly interventions.