10/100Mbps Auto-negotiation Media Converter is the network communication device that realizing smooth network upgrade without any additional cost, it is high-performance, cost effective and flexible solutions for a wide range of applications in the field of LAN campus network. It completely conforms to IEEE 802.3 10Base-T and IEEE 802.3u 100Base-TX, 100Base-FX standards, and can connect with SERVER, HUB and SWITCH. MDO-300 can be set into full/half duplex auto-negotiation by manual, and it has two transmission mode: SM and MM, and its interface has many selectable optic fiber connectors and RJ-45 connector. Feature: 1. Fully compatible with IEEE 802.3, IEEE802.3u 2. Support 10Base-T, 100Base-TX (UTP), 100Base-FX (Fiber) 3. Up to 5Km distance on multi mode optical port and 120Km distance on single mode optical port 4. Work mode: Full duplex, half duplex, and full/half duplex auto-negotiation 5. Wavelength: MM (850nm, 1300nm), SM (1310nm, 1550nm) 6. Twisted-pair connector: NODE/HUB or SWITCH (5 class UTP) 7. Indicator light: PWR, TXL, SPD, FDX, RX, FXL