DNC- Premium 10/100/1000Mbps simplex Ethernet media converter adopts switching technology to fulfill media conversion. The converters are the perfect solution for long distance transmission of 10/100/1000 Mbps data Ethernet signals through single fiber line It complies with IEEE802.3z and IEEE802.3ab standards, and supports two types of media network connections: 10/100/1000Base-T and 1000Base-SX/LX. It inter-converts electrical signals of 10/100/1000Base-T twisted pairs with optical signals of 1000Base-SX .It extends the network transmission distance from 100m via copper cables to 120 km via Single mode fiber optical cable . It enables the data to transmit in two different mediums of electrical and optical networks either by the technology of data link L2 store-and-forward, or by the one of PHY L1 cut-through. It supports transmission in single-mode simplex fiber. Our products high and stable quality, reasonable price and excellent services. The products have gained admires and been held in reputations from various customers.