... NAT, PPPoA, PPPoE, RIP, G.shdsl Modem 2 and 4 wires G.shdsl ModemFibridge G.SHDSL is a high quality ... at 2M speed. 2.FeaturesCompatible with G.991.2 and G.SHDSL.bis protocol2 wires or 4 wires optionalThe distance ... by the speed under 2Mbps for one-pair device and 4~4.5Km for two-pair deviceSupport ATM ALL5, NAT, ... EnvironmentTemperature: -25~+70Humidity: 0~95%, no condensing 2 and 4 wires G.shdsl Modem