Binary Input to read out floating contacts or LED output, Flush mounted, max cable length 5m, To connect push-buttons or window/auxiliary contacts, Each output can be set as 1,5mA output for low current LED, 4 integrated logical modules, Telegram rate limitation, NO or NC contact operation, programmable length of button push, Operation of blinds and shutters, 1 and 2 button operation, Forced setting function for each output, Operation with short/long button push and 2 objects, Counting of pulses, Cyclical sending of contact state programmable, Flush mounted (length of connection cables: 22cm), Dimensions (W x H x D): 41mm x 41mm x 12mm, Integrated bus coupling unit, 3 years warranty.