... certified *24 hours aging to ensure stable Humanity E1 optical modem realizes E1 transmission over fiber with the bandwidth ... of 2048kbps. Main FeatureDefault: dual fiber, single mode, 40km. FC/SC/ST option, distance option. Various loop back ... interface type: FC,SC,ST optionDefault optical wavelength: 1310nmDefault transmission distance: 40kmThe optical module is customizedPower: AC or DC ...