Belden MM3-2FXM2 2TX1 Programmable Logic Controller Module

Belden Hirschmann MM3-2FXM2/2TX1 is a four-port media module for Hirschmann MICE switches, adding two 100BASE-TX copper interfaces and two 100BASE-FX multimode fiber links to a Belden MS chassis. It integrates into the MS20/MS30 family to extend Ethernet connectivity within the Belden Hirschmann MICE ecosystem, enabling copper-to-fiber segmentation and flexible topologies in industrial environments. The MM3-2FXM2/2TX1-EEC variant offers the same core functionality in an extended-operational version for environments with wider temperature ranges or enhanced environmental considerations. Key part numbers include 943761101 for MM3-2FXM2/2TX1 and 943761151 for MM3-2FXM2/2TX1-EEC, reflecting baseline and environmental variants. The module supports 100 Mbps Ethernet on both copper and fiber paths, facilitating mixed copper/fiber designs where local devices connect via copper and longer links run over fiber, all within a single MS switch platform. Typical applications include industrial automation networks requiring mixed copper/fiber connectivity, network segmentation for safety-critical systems, and scalable layouts within manufacturing or process-control facilities.