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Tangerine is a submarine telecommunications cable system segment. It crosses the English Channel, linking the United Kingdom and Belgium.
It has landing points in:
The cable contains four fibre bundles, each of 48 fibres, and a total cable length of 121 km.
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TAT-14 was the 14th consortium transatlantic telecommunications cable system. In operation from 2001 to 2020, it used wavelength division multiplexing. The cable system was built from multiple pairs of fibres—one fibre in each pair was used for data carried in one direction and the other in the opposite direction. Although optical fibre can be used in both directions simultaneously, for reliability it is better not to require splitting equipment at the end of the individual fibre to separate transmit and receive signals—hence a fibre pair is used. TAT-14 used four pairs of fibres—two pairs as active and two as backup. Each fibre in each pair carried 16 wavelengths in one direction, and each wavelength carried up to an STM-256. The fibres were bundled into submarine cables connecting the United States and the European Union in a ring topology.
A rope is a group of yarns, plies, fibres, or strands that are twisted or braided together into a larger and stronger form. Ropes have tensile strength and so can be used for dragging and lifting. Rope is thicker and stronger than similarly constructed cord, string, and twine.
PTAT-1 was the first privately financed transatlantic fibre optic telecommunications cable, which was completed in 1989, at a cost of US$400 million. It was maintained by Cable & Wireless (C&W) and Sprint/PSI, and connected Manasquan, New Jersey, United States with Devonshire, Bermuda and Ballinspittle, Republic of Ireland, terminating at Brean, England, United Kingdom, for a distance of 7,552 kilometres.
Fibre-optic Link Around the Globe (FLAG) is a 28,000-kilometre-long fibre optic mostly-submarine communications cable that connects the United Kingdom, Japan, India, and many places in between. The cable is operated by Global Cloud Xchange, a subsidiary of RCOM. The system runs from the eastern coast of North America to Japan. Its Europe–Asia segment was the fourth longest cable in the world in 2008.
Analogue television in the United Kingdom includes terrestrial, satellite and cable services that were broadcast using analogue television signals. Following the termination of Virgin Media's analogue cable television service in Milton Keynes in November 2013, all television in the United Kingdom is broadcast in digital only.
Standard Telephones and Cables Ltd was a British manufacturer of telephone, telegraph, radio, telecommunications, and related equipment. During its history, STC invented and developed several groundbreaking new technologies including pulse-code modulation (PCM) and optical fibres.
SEA-ME-WE3 or South-East Asia - Middle East - Western Europe 3 is an optical submarine telecommunications cable linking those regions and is the longest in the world. Completed in late 2000, it is led by France Telecom and China Telecom, and is administered by Singtel, a telecommunications operator owned by the Government of Singapore. The Consortium is formed by 92 other investors from the telecom industry. It was commissioned in March 2000.
Yellow / AC-2 is a submarine telecommunications cable system linking the United States and the United Kingdom. The cable is wholly owned by Lumen in the US following its acquisition of Global Crossing. The original owners, which each owned two of the fibre pairs, gave this cable system different names, so it is known as both Yellow and AC-2. It has a capacity of 320 Gbit/s as of January 2007, upgradeable to 640 Gbit/s.
PEC or Pan European Crossing is a fibre optic cable network that links the European Union and the United Kingdom. It has a submarine telecommunications cable system segment crossing the English Channel linking the United Kingdom, Belgium, and France.
TGN Atlantic (TGN-A) previously VSNL Transatlantic and TGN Transatlantic, is a submarine telecommunications cable system transiting the Atlantic Ocean. The cable has been in operation since 2001.
VSNL Western Europe is a telecommunications cable system with both submarine and terrestrial parts linking several counties in western Europe.
VSNL Northern Europe is a telecommunications cable system with both submarine and terrestrial parts, connecting England and the Netherlands.
SEACOM launched Africa's first broadband submarine cable system along the continent's Southern coasts in 2009. SEACOM is privately owned and operated.
UK-Belgium 5 was a submarine communications cable linking the United Kingdom and Belgium. It was the first international undersea cable system to use optical fibres rather than coaxial cable.
The West Africa Cable System (WACS) is a submarine communications cable linking South Africa with the United Kingdom along the west coast of Africa that was constructed by Alcatel-Lucent. The cable consists of four fibre pairs and is 14,530 km in length, linking from Yzerfontein in the Western Cape of South Africa to London in the United Kingdom. It has 14 landing points, 12 along the western coast of Africa and 2 in Europe completed on land by a cable termination station in London. The total cost for the cable system is $650 million. WACS was originally known as the Africa West Coast Cable (AWCC) and was planned to branch to South America but this was dropped and the system eventually became the West African Cable System.
HUGO is a submarine telecommunications cable linking the United Kingdom, the Channel Islands, and France.
Tempora is the codeword for a formerly-secret computer system that is used by the British Government Communications Headquarters (GCHQ). This system is used to buffer most Internet communications that are extracted from fibre-optic cables, so these can be processed and searched at a later time. It was tested from 2008 and became operational in late 2011.
Circe is a submarine communications cable that connects network switches in the United Kingdom with those in Belgium, France, Germany, and the Netherlands. It was built at a cost of US$1 billion by Viatel in the late 1990s and measures up to 8,700 km in total length. According to a 1998 Bloomberg Businessweek article, Circe is one of the first cross-border fibre-optics networks in Europe.
Gemini was a submarine communications cable system privately owned by Gemini SCSL linking the United States and the United Kingdom via parallel north and south routes.