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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク BT Infinity ： ウィキペディア英語版 BT Infinity BT Infinity is a broadband service in the United Kingdom provided by BT Retail, the consumer sales arm of the BT Group. The underlying network is fibre-to-the-cabinet (FTTC), which uses optical fibre for all except the final few hundred metres to the consumer, and delivers claimed download speeds of "up to 76 Mbit/s" and upload speeds of "up to 19 Mbit/s" depending on package selected.〔(BT Infinity Product Page ) BT Retail, accessed 2012-04-21〕 The fibre terminates in a new roadside cabinet containing a DSLAM, from where the final connection to the customer uses VDSL2 technology. Ofcom data gathered in November 2014 indicated that only 1% of 76 Mbit/s and 15% of 38 Mbit/s customers received the advertised speed. ==Deployment== Following a technical trial involving 50 homes in Foxhall, Ipswich, in January 2009,〔(Superfast Broadband Programme Update ), BT, published June 2009, accessed 2010-10-27〕 and operational pilots at the Muswell Hill, Whitchurch and Glasgow Halfway telephone exchanges, the service was launched commercially on 25 January 2010.〔(BT launches new Infinity broadband service ) V3, published 2010-01-21, accessed 2010-10-27〕 When it was announced, BT expected 4 million customers for the service by the end of the year. Infinity forms part of BT's £1.5bn plan to make superfast broadband available to 40% of the UK by the summer of 2012, using FTTC and FTTP services.〔(BT launches BT Infinity superfast broadband at a competitive price ) BT, published 2010-01-21, accessed 2010-10-27〕 Previously, the only major provider of domestic super fast broadband in the UK was Virgin Media's hybrid fibre-coaxial service.〔(BT Infinity Fibre Optic Broadband Comparison ), accessed 2010-10-27〕 It should be noted that neither Virgin Media nor BT's 'up-to 76MBit/s' Infinity actually use optical fibre to supply super fast broadband to the home, but rather still rely on copper, which can be sensitive to electromagnetic interference. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「BT Infinity」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.