Trans-I/OExpansion Inputs/Outputs moduleEasy plugging to all Trans series controllers, Configurable 8 inputs and 8 outputs, Each input and output configurable by user or select from list, Selectable hardware type of inputs by +Ve or -Ve, Selectable NO or NC input polarity, Selectable NO or NC output polarity, Adjustable input active delay, Can be used together with remote monitoring modules