Input device with four independently addressable inputs for integrating conventional presence sensors into a bus-controlled lighting and room management system. Depending on the addressing of an input, all actuators in a room or a group of actuators in the room can be operated: By closing and opening a contactor connected to the input terminal, the 'Present' or 'Absent' mood is called up in a defined manner. Device for local and central automation. With local automation, the 'Absent' mood is called up with a delay time of 10 minutes and a fade time of one minute. With central automation, the delay time and fade time can be set as required. Device input voltage 230 V AC, 50/60 Hz, mounting on 35 mm top hat rail in accordance with EN50022, dimensions 4 HP each 17.5 mm, material flame-retardant polycarbonate, halogen-free, light gray. Bus and power cables can be screwed onto the device's inputs. Presence sensors as 230 V standard devices, supply lines can be screwed onto the device's inputs.