This SAE-100-G20 features with link loss diagnosis, electrical port link diagnosis and optical port link diagnosis, dynamic data transmission, full-duplex/half-duplex, speed indicator. It provides the stand-alone RJ-45 electrical interface port, automatic cross connection with switch and hub network. High-performance optical fiber interface, good compatibility and high reliability, fully compatible with other devices. Accordingly, multimode, single mode up to 80 km or more can supported by this equipment. The SAE-100-G20 media converter provides a network point for data transmission. The media converter features simple and reliable design, automatic identification Ethernet requirements, duplex and high-speed. Remarkably, It has 1 Gigabit fiber ports(SFPs) that helps designers to improve their planning and use the network intelligently. SAE-100-G20 made by high quality of components were rigorous screened, have superior performance in stability, environmental adaptability. The product planned in a way of better resistance and ability to corrosion and electromagnetic interference. Power input also made a suitable and reliable types of power, to get more powerful suitability to environment.