HiFiber's A7S2 series Media Converter is use to expanding existing Gigabit Ethernet networks. The easy implementation and expansion of 1000Base-TX/FX networks can be further assured with this converter. The converter is completely transparent when connected so the network performs exactly the way it did before - only now, it allows the co-existence of both copper and fiber mediums. Main Features: Complies with IEEE 802.3, IEEE 802.3u, IEEE802.3z, IEEE802.3ab, IEEE 802.3x Auto negotiation function allows UTP port to auto select 10M, 100M or 1000M Ethernet port supports MDI/MDI-X auto crossover Extends distances up to 550M/ 20KM/ 40KM/ 60KM/ 80KM/ 100KM/ 120KM (multi mode fiber or single mode fiber) Auto MDI/MDI-X support on RJ-45 port Support Full Duplex and Half Duplex Status LED's for TX,FX LINK/ACT, POWER,FDX to easily monitor network status 1Mbit RAM for data buffer Supports jumbo frame size 9K bytes Optical Port: 1310nm Single Connectors: LC Connector Distances: up to 20km Ethernet Port: Connectors: RJ-45 Connector LED Indicators: FX, TX, Link/Act(Left/Right), FDX, PWR FX: Light on when fiber speed is 1000Mbps, else light off TX: Light on when TP speed is 1000Mbps, else light off Link/ACT: Left side is indicate for fiber port link/act and right side for TP, light flashing when data transmitting and receiving FDX: Light on when TP full-duplex mode is active, light off when TP half-duplex mode is active PWR: Light on when DC power on, else light off Specifications: Output voltage: 5VDC 1.0A Power dissipation: ≤3 watts Housing: Metal enclosure Dimensions: 93 x 71 x 27mm Weight: 0.5kg Operating Temperature: 0°C to 60°C Storage Temperature: -20°C to 70°C Warranty: 2 years"