OPERATING DEVICE, SENSOR DEVICE AND LIGHTING SYSTEM

An operating device for providing electrical energy to a light source (2) comprising a main power supply (5) for providing the electrical energy to a connected light source, and, preferably, an auxiliary power supply (6) for supplying electrical energy to a control unit (7) of the operating device, the control unit (7) being connected to the main power supply (5) to control the electrical energy supplied to the light source (2). The auxiliary power supply (6) is connected to an auxiliary bus interface (9) for supplying electrical energy to one or more sensor device(s) (3), and the operating device (1) is configured to communicate with the sensor device(s) (3) by powerline communication over the auxiliary bus interface (9). The operating device (1) and a sensor device (3) configured to be able to receive electrical energy from a power supply and to communicate via this power supply connection establishes a lighting system for enabling direct communication between a sensor device (3) and an operating device (1)