... 80/120km Humanity HM-C118 Ethernet fiber optic modem realizes Ethernet over fiber. It's default with dual fiber, single mode, 1310nm, 40km ... and testTechnical ParametersEthernetInterface type: RJ45Rate: 64kbps to 2048kbpsFiber Default: dual fiber, single mode, 40km, FC connector, 1310nm.Wavelength: 1310nm/ ... optical modem with DC power supply humanity Ethernet fiber optic modem for optic fiber network