TFC-110S20D3 (Version D3.2R) 100Base-TX to 100Base-FX Dual Wavelength Single Mode SC Fiber Converter TX: 1310 RX: 1550 Datasheet Manual Firmware FeaturesMust use with TFC-110S20D5SC-type dual-wavelength single-mode fiber port connects over distances of up to 20km (12.4miles)10/100Base-TX port supports Auto-Negotiation, Auto-MDIX and Full-Duplex modeFunctions as a stand alone converter or with the TFC-1600 fiber chassisLifetime Warranty*