The LON module with 4 digital inputs was developed for decentralized switching tasks. It is suitable for recording 230 V AC switch states, e.g. switches or buttons for lighting control. The input terminals 1L to 4L are connected to the terminals 1N to 4N via switches or contacts with 230 V AC. The inputs can be integrated individually or as a whole using network variables SNVT. Suitable for decentralized installation on TH35 mounting rail according to IEC 60715 in electrical distribution boards. Connection with screw terminals