![]() ![]() These early cables used copper wires in their cores, but modern cables use optical fiber technology to carry digital data, which includes telephone, Internet and private data traffic. Subsequent generations of cables carried telephone traffic, then data communications traffic. ![]() Submarine cables first connected all the world's continents (except Antarctica) when Java was connected to Darwin, Northern Territory, Australia, in 1871 in anticipation of the completion of the Australian Overland Telegraph Line in 1872 connecting to Adelaide, South Australia and thence to the rest of Australia. The first submarine communications cables were laid beginning in the 1850s and carried telegraphy traffic, establishing the first instant telecommunications links between continents, such as the first transatlantic telegraph cable which became operational on 16 August 1858. Transoceanic communication line placed on the seabedĪ cross section of the shore-end of a modern submarine communications cable.Ĩ – Optical fibers Submarine cables are laid using special cable layer ships, such as the modern René Descartes, operated by Orange Marine.Ī submarine communications cable is a cable laid on the seabed between land-based stations to carry telecommunication signals across stretches of ocean and sea. ![]()
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