Universal input device with four independently addressable inputs for integrating electronic buttons or EIB/KNX buttons including status feedback via LED into a bus-controlled lighting and room management system. Depending on the addressing of an input, all lights in a room or a group of lights in the room can be controlled. By briefly pressing the connected button, you can switch between two scenarios ('Absent' mood and 'Present' mood); by pressing the button for a long time, the room lighting or a group of light actuators in the room can be alternately dimmed up and down. Device supply via LM bus or external power supply 24V, 10-pin ribbon cable with socket plug for button designed for at least 15V DC, installation in flush-mounted box behind button, dimensions diameter 53mm, height 15mm, material flame-retardant polycarbonate, halogen-free, transparent.