... Modem, Single fiber, 20km, 1550Tx/1310Rx wavelength, 1 fiber port, 120ohm, SNMP management, Card Type.High Quality with FCC ... HotlineH=With Hotline10Management FunctionM=SNMP11PackageC=Card12Power Supply22=220V 11=110V 48=48VShipmentInternational Express: DHL, FedEx, UPS, TNT and ... Modem, Single fiber, 20km, 1550Tx/1310Rx wavelength, 1 fiber port, 120ohm, SNMP management, Card type. We test each ...