... /80/100/120 km (single mode)Light interface features:Wavelength: 1310 nm (2 km, 25 km, 40 km, 60 km, 80 ... km)1550 nm (100-120 km)1310 nm (multimode 2 kilometers)LED display:PWR: power ... , FC a variety of optical fiber interface optional, work wavelength 1310, 1550 nm optional;Pieces standard RJ - 45 interface, can support 100 ...