System for wiring up a building has an mains electrical supply for residential units and a separate bus network linked by wires for personal computers and so on

摘要

A first bus distributor (BD)(2) links to a mains electrical network (1). A second BD (4) links to a main bus branch (3), which along with each bus sub-branch (5) has four wires, two of which make a data link for other BDs and for multiple final bus components (FBCs) and two of which supply low voltage for other BDs and/or FBCs like actuators, sensors, monitors used by security guards, etc.