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. Features 　◆ Fully compatible with IEEE 802.3, IEEE802.3u? Support 10Base-T, 100Base-TX (UTP), 100Base-FX (Fiber) 　◆ Up to 5Km distance on multi mode optical port and 120Km distance on single mode optical port 　◆ Work mode: full duplex, half duplex, and full/half duplex auto-negotiation 　◆ Wavelength: MM (850nm, 1300nm), SM (1310nm, 1550nm) 　◆ Twisted-pair connector: NODE/HUB or SWITCH (5 class UTP) 　◆ Indicator light: PWR, TXL, SPD, FDX, RX, FXL Other features ◆ Size: 120mm ? 87mm ? 27mm ◆ Weight: 0.5Kg ◆ Power: 100V~275VAC 50~60Hz or -48VDC (selectable) ◆ Working temperature：0°C~50°C ◆ Storage temperature:-20°C~ +70°C ◆ Humidity： 5％~ 95％ (non condensation) ◆ Product compatible with those protocols: IEEE802.3 IEEE802.3u IEEE802.3x IEEE802.1d IEEE802.1Q IEEE802.1p