The TCE-MD2302ED20 series 10/100M adaptive single mode dual fiber media converter through 10Base-TX or 100Base-TX to 100Base-FX photoelectric conversion between the traditional 10M Ethernet or 100M Fast Ethernet through the Fast Ethernet fiber optic link extended to 120 km range, to meet the long-distance, high-speed , High-bandwidth fast Ethernet working group user needs, the product performance is stable and reliable, designed to meet the Ethernet standards, and anti-lightning protection measures, especially for telecommunications, mobile, China Unicom, safe city, radio and television, railway, military, financial securities, customs, civil aviation, maritime transport, electricity, water conservancy and oil fields and other broadband data network and require high reliability data transmission or the formation of IP data transmission network area, it is the best application equipment for broadband campus network，intelligent broadband district fiber to the floor , Fiber to the home and video surveillance .