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1000BASE-TX is a physical layer standard created and managed by TIA that enables transmitting data at speeds of gigabits per second on category 6 and 7 cables. It is maintained under the IEEE 802.3ab standard.
1000BASE-TX is also referred to as TIA/EIA 854.
1000BASE-TX is similar to 1000BASE-T but uses two pairs of wires, instead of four, for data transmission: one for sending data at speeds of 500 Mbps, and another for receiving data at comparable speeds. This enabled the building of devices with less circuitry to support, as compared to 1000BASE-T. It utilizes category 6 unshielded twisted pair (UTP) cables and transmits data up to 100 meters in length.
1000BASE-TX has not gained wide recognition, largely due to the expense of Cat 6 and 7 cable requirements and the rising cost of 1000BASE-T products.