Pre-wired control unit for KNX presence detectors and other consumers for installation in the false ceiling, DALI/KNX gateway for connecting up to 45 DALI lights, GST18 plugs and sockets, cost savings and avoidance of incorrect installations through pre-wiring, basic functions of the connected consumers even without ETS through integrated service switch, all BEG KNX motion and presence detectors can be used, DALI gateway, roller shutter actuator and two button interfaces are already integrated