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2. Fast Ethernet - Wikipedia

   en.wikipedia.org/wiki/Fast_Ethernet

   The segment length for a 100BASE-T cable is limited to 100 metres (328 ft) (the same limit as 10BASE-T and gigabit Ethernet). All are or were standards under IEEE 802.3 (approved 1995). Almost all 100BASE-T installations are 100BASE-TX.

3. IEEE 802.3 - Wikipedia

   en.wikipedia.org/wiki/IEEE_802.3

   First edition of the IEEE 802.3 standard. Approved by IEEE in 1983, approved by ANSI in 1984, and published in 1985. Same as Ethernet II (above) except Type field is replaced by Length, and an 802.2 LLC header follows the 802.3 header. Based on the CSMA/CD media access method. 802.3a: 1985-11

4. 10 Gigabit Ethernet - Wikipedia

   en.wikipedia.org/wiki/10_Gigabit_Ethernet

   SFP+ direct attach has a fixed-length cable, up to 15 m for copper cables. [43] Like 10GBASE-CX4, DA is low-power, low-cost and low-latency with the added advantages of using less bulky cables and of having the small SFP+ form factor. SFP+ direct attach today is tremendously popular, with more ports installed than 10GBASE-SR. [40]

5. 2.5GBASE-T and 5GBASE-T - Wikipedia

   en.wikipedia.org/wiki/2.5GBASE-T_and_5GBASE-T

   The IEEE 802.3ch-2020 2.5GBASE-T1, 5GBASE-T1, and 10GBASE-T1 standards are derived from the IEEE 802.3bp-2016 1000BASE-T1 Ethernet over single twisted pair standard, and share very little in common with the similarly named 2.5GBASE-T and 5GBASE-T standards at the PHY layer. 2.5GBASE-T1, 5GBASE-T1, and 10GBASE-T1 can run over a single twisted ...

6. Ethernet physical layer - Wikipedia

   en.wikipedia.org/wiki/Ethernet_physical_layer

   Ethernet over a single twisted pair - long reach, for industrial applications 10BASE-T1S: 802.3cg-2019 (147) 25 m Ethernet over a single twisted pair - short reach, for automotive applications, including PoDL: Fiber-optical cable FOIRL: 802.3d-1987 (9.9) ST: 1000 m FDDI-style MMF

7. Category 5 cable - Wikipedia

   en.wikipedia.org/wiki/Category_5_cable

   The cable standard prescribes performance parameters for frequencies up to 100 MHz and is suitable for 10BASE-T, 100BASE-TX (Fast Ethernet), 1000BASE-T (Gigabit Ethernet), and 2.5GBASE-T. 10BASE-T and 100BASE-TX Ethernet connections require two wire pairs. 1000BASE-T and faster Ethernet connections require four wire pairs.