Push-button interface, 4-gang plus. Generates an internal signal voltage for the connection of 4 conventional push-buttons or potential-free contacts and for the connection of 4 low-current LEDs. The wires are 30 cm long and can be extended to a maximum of 7.5 m. For installation in a conventional 60 mm switch box. KNX software functions include switching, dimming, or blinds control via 1 or 2 inputs, position values for blinds control (8-bit), pulse edges with 1-, 2-, 4- or 8-bit telegrams. There is differentiation between short and long activation, initialization telegram, cyclical transmission, pulse edges with 2-byte telegrams, 8-bit linear controller, and scenes. Features include a counter, disabling function, normally closed/normally open contact, and debounce time. Outputs are available for connecting indicator lights (low-current LEDs) for status display. For each input/output object type: contact voltage is 3 V (SELV), contact current is 0.5 mA, and output current is a maximum of 2 mA. The maximum cable length is 30 cm unshielded, which can be extended up to a maximum of 7.5 m with twisted, unshielded cable. Dimensions are approximately 40 x 30.5 x 12.5 mm (L x W x H). Colour: polar white.