The BE Series 10/100/1000M Auto-Sensing Gigabit Industrial Fiber Media Converter uses advanced fiber optic technology. It transmits and receives 10/100/1000 Mbps data over two single-mode optical fibers, extending Ethernet transmission distance up to 120 km. Using optical fiber, it ensures secure, high-speed communication even under adverse conditions like lightning, power surges, and electromagnetic interference, saving on protection equipment costs compared to copper wires.