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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 ...
In contrast, PAM-5 is the modulation technique used in 1000BASE-T Gigabit Ethernet. 10GBASE-T SFP+ transceiver. The line encoding used by 10GBASE-T is the basis for the newer and slower 2.5GBASE-T and 5GBASE-T standard, implementing a 2.5 or 5.0 Gbit/s connection over existing category 5e or 6 cabling. [51]
The most popular variant, 1000BASE-T, is defined by the IEEE 802.3ab standard. It came into use in 1999, and has replaced Fast Ethernet in wired local networks due to its considerable speed improvement over Fast Ethernet, as well as its use of cables and equipment that are widely available, economical, and similar to previous standards.
Generally, layers are named by their specifications: [8] 10, 100, 1000, 10G, ... – the nominal, usable speed at the top of the physical layer (no suffix = megabit/s, G = gigabit/s), excluding line codes but including other physical layer overhead (preamble, SFD, IPG); some WAN PHYs (W) run at slightly reduced bitrates for compatibility reasons; encoded PHY sublayers usually run at higher ...
The cable must be capable of transmitting 600 MHz for 1000BASE-T1 and 66 MHz for 100BASE-T1. 2.5 Gb/s, 5 Gb/s, and 10 Gb/s over a 15 m single pair is standardized in 802.3ch-2020. [25] In June 2023, 802.3cy added 25 Gb/s speeds at lengths up to 11 m.
IEEE 802.3 is a working group and a collection of standards defining the physical layer and data link layer's media access control (MAC) of wired Ethernet.The standards are produced by the working group of the Institute of Electrical and Electronics Engineers (IEEE).
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5 Gigabit Ethernet (5GBASE-T) 5 Gbit/s: 625 MB/s: 2016 InfiniBand QDR 1× [23] 8 Gbit/s: 1 GB/s: 2007 InfiniBand SDR 4× [23] 8 Gbit/s: 1 GB/s: 2001, 2003 Quadrics QsNet II: 8 Gbit/s: 1 GB/s: RapidIO Gen1 4x: 10 Gbit/s: 1.25 GB/s: RapidIO Gen2 2x: 10 Gbit/s: 1.25 GB/s: 2008 10 Gigabit Ethernet (10GBASE-X) 10 Gbit/s: 1.25 GB/s: 2002-2006 Myri ...