Allen-Bradley 1794-IA8 Flex I/O 120V AC Digital Input Module By wayne No Comments on Allen-Bradley 1794-IA8 Flex I/O 120V AC Digital Input Module 3 Min Read Buy the Allen-Bradley 1794-IA8 Flex I/O module. It features 8 non-isolated 120V AC inputs, status indicators, and DIN rail mounting.