The SerialComm ETH-FIBER-SM-2-ST is a high quality bi-directional externally powered 10/100M or 1G Ethernet to single mode (SM) fiber optic converter enclosed in a heavy-duty steel housing. The fiber optic converter converts a standard 10/100/1000BaseTX to 1000BaseFX multi mode SC connector type fiber optic duplex link. The ETH-FIBER-SM-2-ST supports straight-through (MDI) or crossover (MDX) cable configurations Besides the capability of long distance data transmission, fiber lines are inherently resistant to EMI/RFI and transient surges including lightning; therefore, they are ideal for data communications near heavy electrical equipment and other electrical or atmospheric interference conditions. The multi-mode fiber optic converter can extend the Ethernet signal distance to up to 12.4 miles (20.0 km) using SM fiber optic duplex cable. The unit supports data rates up to 200mbps and features auto-sensing data turnaround and therefore requires no flow control or any software drivers, The converter has no DIP switches or jumpers making it Plug-and-Play. The ETH-FIBER-SM-2-ST has a RJ45 connector for the 10/100/1000M Ethernet port, and either an SC type connector for the fiber optic link. The media converter is wall, panel, or DIN rail mountable. An external 5V / 110V-240V power adapter is included in package. Plug-and-Play (hot-pluggable), Easily mounted on a DIN-rail, panel, wall or piggyback. Included DIN RAIL BRACKET. Transmission speeds of up to 128kbps Fiber optic range of up to 12.4 miles (20.0 km) SM (Single Mode) duplex fiber with ST type connectors, Full duplex bi-directional transmission, Data direction auto-turnaround - no flow control is necessary, Built-in surge, static and over-current protection LED indicators for power and data, No software drivers are necessary, Power required: 5VDC, Pre-tested 99.9% failure rate 353,102 Hours MTBF (Mean Time Before Failure). 5-year replacement manufacturer's warranty CE, FCC, RoHS 3, and REACH certified