In the past, Ethernet cable had a reputation for being slower than fiber optic cable, but that has begun to change. The speed of copper-based Ethernet was once limited to 10 Mbps. However, "Fast Ethernet" offers speeds of up to 100 Mbps and "Gigabit Ethernet" can provide speeds of up to 1000 Mbps over twisted pair cable. Therefore, IEEE 802.3ab, which defines the widely used 1000BASE-T interface type, uses a different encoding scheme to keep the symbol rate as low as possible, allowing transmission over twisted pair. 1000BASE refers to a Gigabit Ethernet connection that uses unfiltered cable for transmission. "T" means twisted pair cable. More information about the difference between fast Ethernet and gigabit Ethernet, see: Differences between Fast Ethernet and Gigabit Ethernet.
What is 1000BASE-T?
1000BASE-T (also known as IEEE 802.3ab) is a standard for copper Gigabit Ethernet. The maximum transmission distance up to 300m via Cat5, Cat5e or Cat6 4-pair UTP cable. 1000BASE-T allows auto-negotiation between 100Mbps and 1000Mbps. It can be used in data center for server switching, for switch uplinks. More information about application of 1000BASE-T, see Cisco 1000BASE-T SFP.
What is 1000BASE-TX?
1000BASE-TX is a physical layer standard similar to 1000BASE-T, created and managed by the Telecommunications Industry Association (TIA). 1000BAT-TX uses two pairs of cable for data transmission which transmits data speed of 1000Mbps every second through Cat6 and Cat7 cable. Due to high cost of Cat6 and Cat7, 1000BASE-TX is not widely used in the market.
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1000BASE-T VS 1000BASE-TX: What's the difference?
The main difference is that 1000BASE-T is designed to operate over 4-pair UTP cable and supports 1000Mbps fulle-duplex data transmission. 1000BASE-TX operates over two-pair cable only. 1000BASE-TX transmits 500Mbps speed data over two-pair cable.
