Allen-Bradley 1734-IM4 POINT I/O 4-Channel AC Input Module By wayne No Comments on Allen-Bradley 1734-IM4 POINT I/O 4-Channel AC Input Module 2 Min Read Buy the Allen-Bradley 1734-IM4 4-channel digital AC input module. This 220V AC unit offers 4 non-isolated sink inputs for POINT I/O systems.