The iSMA-B-4I4O-H has 4x DI (Digital Inputs) and 4x DO (Digital Outputs). DI can work as dry contact or fast pulse counter up to 100 Hz save in EEPROM memory. DO are relay outputs 230 V AC/30 V DC max. 3 A.
iSMA 4I4O H module has got build in 3 light control modes which allow to use the module as light application controller.
Protocols: Modbus ASCII/RTU and BACnet MSTP