Allen-Bradley 1492-IFM40F-3 Interface Module

Allen-Bradley 1492-IFM40F-3 is a 40-point feed-through digital interface module (IFM) in the 1492 wiring family, designed to connect up to 40 digital I/O points from field sensors and actuators to a Rockwell Automation control system. It features a 40-pin fixed terminal block on the field side with three wiring terminals per I/O connection, enabling straightforward connections for 3-wire sensor inputs and related digital devices. The module is intended for DIN-rail mounting and is used to interface digital, analog, and high-speed counter PLC I/O modules via pre-wired and pre-tested cables, simplifying installation in industrial cabinets. Typical applications include high-density sensor networks for machines and conveyors, such as proximity switches, limit switches, and other 3-wire sensor configurations in manufacturing lines, packaging, and automation cells, where reliable, low-loss feed-through wiring is essential. The -3 designation indicates the 3-wire input configuration within the 40-point capacity, making this IFM a compact solution for expanding discreet input reach while maintaining compatibility with the 1492 Programmable Controller Wiring Systems.