Amazon.com: OLYCOM Harsh Outdoor 5-Port Gigabit Ethernet Fiber Converter, Industrial DIN-Rail Network Switch, 100/1000Base-T to LC, Up to 20KM(with SFP Transceiver), IP40, Extreme Heat -40°~ 85°C (-40°~ 185°F) : Electronics
ST-FODVIDD-LC - NTI DVI-D Dual Link Extender via Fiber Optic Cable
Media Converter / Switch, Singlemode, 60km Gigabit, 10/100/1000BaseTX to 1000BaseFX (SFP with LC) Four Copper Ethernet Ports, Two SFP Fiber Optic Ports