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The resulting standards are named 2.5GBASE-T and 5GBASE-T. [ 1 ] [ 2 ] [ 3 ] NBASE-T refers to Ethernet equipment that supports speeds of at least 2.5 Gbit/s and sometimes 5 or 10 Gbit/s, and that can automatically use training to operate at the best speed supported by the cable quality. [ 4 ]
5GBASE-T: 100 m of Cat 6 2.5GBASE-T1: 802.3ch-2020 (149) use a single, bi-directional twisted pair in full duplex mode only, intended for automotive and industrial applications 5GBASE-T1 Fiber-optical cable 2.5GBASE-AU: 802.3cz-2023 (166) undefined: up to 40 m of OM3 for automotive 5GBASE-AU: up to 40 m of OM3 for automotive Other 2.5GBASE-KX
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).
1 2 1 1 PE 1 1 250 voice grade ~12 LAN: StarLAN-10 802.3e-1988: obsolete 10 2 1 1 PE 10 10 ~100 voice grade ~12 LAN LattisNet: pre 802.3i-1990: obsolete 10 2 1 1 PE 10 10 100 voice grade ~12 LAN 10BASE-T: 802.3i-1990 (CL14) legacy 10 2 1 1 PE: 10 10 100 Cat 3: 16 LAN [34] 10BASE-T1S: 802.3cg-2019: current 10 1 1 0.8 4B5B DME: 25 12.5 15 or 25 ...
ITU-T G.694.2: current Fibre 1270 – 1610 nm: LC SFP: OSx: 40k – 100k: 2 1 1 CWDM makes it possible to have multiple parallel channels over 2 fibers; spectral bandwidth 11 nm; capable of 18 parallel channels: 1000BASE‑DWDM [24] [23] ITU-T G.694.1: current Fibre 1528 – 1565 nm: LC SFP: OSx: 40k – 120k: 2 1 1
The physical coding sublayer (PCS) is a networking protocol sublayer in the Fast Ethernet, Gigabit Ethernet, and 10 Gigabit Ethernet standards. It resides at the top of the physical layer (PHY), and provides an interface between the physical medium attachment (PMA) sublayer and the media-independent interface (MII).
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] Cables that will not function reliably with 10GBASE-T may successfully operate with 2.5GBASE-T or 5GBASE-T if supported by both ends.
15: next page – used to indicate the intention of sending other link code words after the base link code word; The technology ability field is composed of eight bits. For IEEE 802.3, these are as follows: bit 0: device supports 10BASE-T; bit 1: device supports 10BASE-T in full duplex; bit 2: device supports 100BASE-TX