Allen-Bradley 1492-IFM40F Interface Module

Allen-Bradley 1492-IFM40F Interface Module is a 40-point digital interface module for the 1492 I/O wiring system, designed to provide a dedicated digital interface between field devices and a Rockwell Automation controller. The 40-point, feed-through design enables direct wiring of signals from the field side to the controller side, simplifying cabinet layouts and reducing wiring complexity in standard 1492 digital I/O configurations. This module is part of the 1492-IFM40F family and represents the standard, non-fused digital interface option used in classic AB control architectures, with related variants available in the same family to accommodate different voltage and fuse configurations. In practice, the 1492-IFM40F serves as a compact interface to expand digital I/O in industrial installations and is commonly referenced in compatibility notes for AB systems that bridge older controllers with 1492-based I/O networks, such as configurations that pair 1492-IFM40F with legacy modules like the 1746-IB32.