The AddOn Siemens Compatible TAA Compliant 100BASE-LX SFP transceiver is a specialized Fast Ethernet module designed for long-reach industrial networking applications. Operating at 1310nm wavelength over single-mode fiber, this module delivers reliable 100 Mbps connectivity across distances up to 26 kilometers, significantly extending beyond standard LX specifications. Featuring a duplex LC connector, it integrates seamlessly with Siemens RUGGEDCOM and SCALANCE hardware platforms commonly deployed in industrial environments. The transceiver is built to withstand extreme conditions with an industrial operating temperature range of -40 to 85 degrees Celsius, ensuring dependable performance in harsh settings. Digital Optical Monitoring support enables real-time performance tracking and proactive network management. As a TAA Compliant module manufactured in the USA or UK, it meets Trade Agreements Act requirements for U.S. Federal Government, military DoD, and GSA-schedule procurement projects. This rugged, long-reach solution bridges critical infrastructure gaps where standard commercial transceivers fall short.