Model3012, 10/100/1000Mbps Adaptive Gigabit Ethernet Fiber Converter uses switching technology to realize media conversion, which meets the standards of IEEE802.3, IEEE802.3u, IEEE802.3z and IEEE802.3ab. This type of media converter supports two types of media network connections: 10Base-T / 100Base-TX / 1000Base-T and 1000Base-SX / LX. Model 3012 can realize mutual conversion between 10Base-T/100Base-TX/1000Base-T twisted pair electrical signals and 1000Base-SX/LX optical signals. This media converter extends the transmission distance from a 100 m network over copper wires to 20 km. This media converter supports transmission over single-phase, single-phase, single-phase, single-phase, and dual-fiber style fiber optic connections.