ADD-FMC-BX-UST is a Media Converter that converts a 100Base-TX(RJ45) to 100Base-XU(ST) via a 1310/1550nm bi-directional (BiDi) single-mode fiber (SMF) ST connector, which allows distance reach up to 20km. ADD-FMC-BX-UST provides a cost effective conversion from 100Base Copper to 100Base-XU fiber, while extending your network reach beyond the 100m reach limitation of copper.