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Ethernet - Half-Duplex vs. Full-Duplex

Did you know there are two different wiring scenarios for Ethernet? The first is half-duplex, which uses one wire pair. The other is full-duplex which uses two wire pairs. When using half-duplex Ethernet, signals can collide because data transmissions flow in both directions over a shared pair of wires. Full-duplex Ethernet, on the other hand, offers a collision free data transfer path, much like a two-lane highway. Full-duplex provides point-to-point connections between transmitters and receivers, meaning transmitted data is sent on a different set of wires than received data. This collision free environment allows for faster data transfer rates. Full-duplex Ethernet can be used in the following three scenarios: with a connection from a switch to a host with a connection from a switch to a switch with a connection from a host to a host using a crossover cable However, a note of caution, though you have installed full-duplex it may not always deliver data at faster rates. Full-duplex Ethernet operation is an option for both 10BASE-T and 100BASE-TX connections. When a full-duplex port is first powered on it undergoes an auto-detect mechanism process to determine if it can run at 10 or 100Mbps and whether it can run full-duplex. If not, it will default to half-duplex. Your Falcon Tech Rep can help you with all your Ethernet product specifications and ensure your network is running at full capacity. Contact us today at 1-800-989-7009 or visit www.falcontech.com.
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