About: G.fast

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G.fast is a digital subscriber line (DSL) protocol standard for local loops shorter than 500 meters, with performance targets between 100 Mbit/s and 1 Gbit/s, depending on loop length. High speeds are only achieved over very short loops. Although G.fast was initially designed for loops shorter than 250 meters, Sckipio in early 2015 demonstrated G.fast delivering speeds over 100 Mbit/s at nearly 500 meters and the EU announced a research project.

Attributes	Values
rdf:type	yago:Abstraction100002137 yago:Advice106671484 yago:Communication100033020 yago:Message106598915 yago:Proposal107162194 yago:Recommendation106671637 yago:WikicatITU-TRecommendations
rdfs:label	G.fast (de) G.fast (en) G.fast (fr) G.fast (it) G.fast (pt)
rdfs:comment	Le G.fast est une technologie de raccordement à Internet de type DSL sur paire de cuivre. Le G.fast permet d’atteindre 500 à 1 000 Mbit/s pour des distances inférieures à 100 mètres en partie terminale de raccordement optique FTTB (fibre optique jusqu’à l’immeuble) ou 100 Mbit/s pour des distances jusqu’à 500 mètres (fibre optique jusqu’au sous-répartiteur). Au delà de 500 mètres, le VDSL2 prend le relais. (fr) G.fast ist ein ITU-T-Standard der DSL-Technik und gilt als Nachfolgestandard zu VDSL2. Das Übertragungsverfahren basiert wie VDSL2-Vectoring und Supervectoring auf Vectoring. G.fast verspricht Datenübertragungsraten von bis zu 1 Gbit/s (gesamthaft in Sende- und Empfangsrichtung) über existierende Telefonie-Kupferkabel und ist aufgrund der hohen Frequenzen nur für kurze Leitungsdistanzen bis zu 250 m geeignet. G.fast gilt daher zumindest aktuell noch als Alternative zu FTTH und ist für FTTB- und FTTdp-Netze ausgelegt. Die ITU-T Spezifikationen G.9700 und G.9701 beschreiben G.fast. (de) G.fast is a digital subscriber line (DSL) protocol standard for local loops shorter than 500 meters, with performance targets between 100 Mbit/s and 1 Gbit/s, depending on loop length. High speeds are only achieved over very short loops. Although G.fast was initially designed for loops shorter than 250 meters, Sckipio in early 2015 demonstrated G.fast delivering speeds over 100 Mbit/s at nearly 500 meters and the EU announced a research project. (en) G.fast è uno standard DSL adottato il 5 dicembre 2014 dall'ITU-T (il settore dell'Unione internazionale delle telecomunicazioni che si occupa di regolare le telecomunicazioni telefoniche e telegrafiche) che permette velocità di trasmissione tra 200 Mbit/s e 500 Mbit/s. In speciali circostanze, la velocità può raggiungere 1 Gbit/s. Le alte velocità sono raggiungibili su distanze molto brevi (meno di 250 metri). Si tratta di un potenziamento della tecnologia utilizzata nella VDSL2, ma, essendo ottimizzata per le brevi distanze, non è in grado di rimpiazzare la VDSL2 sulle lunghe distanze. (it) G.fast é um padrão de DSL(digital subscriber Line) desenvolvido pela ITU-T, que poderá atingir velocidades entre 200 Mbit/s a 500 Mbit/s, em circunstancias excepcionais, a velocidade poderá aproximar de 1 Gbit/s. Velocidades altas é alcançada somente em pontos de conversão a curta distância(menos do que 250 m.) é ainda uma outra tecnologia usada no VDSL2, entretanto ele é optimizado para curtas distâncias e não irá substituir o VSDL2 para longa distâncias. (pt)
foaf:homepage	https://www.itu.int/rec/T-REC-G.9700
foaf:depiction
dcterms:subject	Telecommunications-related introductions in 2014 Digital subscriber line ITU-T G Series Recommendations ITU-T recommendations
Wikipage page ID	41933979 (xsd:integer)
Wikipage revision ID	1104319746 (xsd:integer)
Link from a Wikipage to another Wikipage	Power spectral density FTTH Blair Levin Telecommunications-related introductions in 2014 Huawei Internet service provider 10G-EPON Digital subscriber line ITU-T G Series Recommendations ITU-T recommendations Connecticut Croatia Frontier Communications Moorhead, Minnesota NBN Co Telekom Austria Time-division duplex CenturyLink GPON Crosstalk (electronics) Ethernet passive optical network Local loop AT&T Alcatel-Lucent European Union Fargo, North Dakota Bridge tap Broadband Forum Nokia Digital subscriber line Forward error correction Frequency-division duplex Telephone exchange Backhaul (telecommunications) Information and communications technology ADSL Swisscom DSL access multiplexer FTTB FTTC FTTN Openreach Reed–Solomon error correction Multi-dwelling unit VDSL2 Ethernet FM broadcast band ITU-T ITU-T Study Group 15 Video-ready access device Outside plant Reverse Power Feeding Trellis coding G.vector Discrete multi-tone modulation XG-PON1
Link from a Wikipage to an external page	http://www.broadbandlondon.com/2016/11/16/what-is-g-fast-and-when-will-we-see-it-in-london/ https://www.ispreview.co.uk/index.php/2020/06/openreach-confirm-g-fast-broadband-rollout-paused-until-2021.html%3Cnowiki%3E http://www.itu.int/en/ITU-T/studygroups/2013-2016/15/Pages/default.aspx https://www.itu.int/rec/T-REC-G.9700
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