Long line (telecommunications)

In telecommunications, a long line is a transmission line in a long-distance communications network such as carrier systems, microwave radio relay links, geosynchronous satellite links, underground cables, aerial cables and open wire, and submarine communications cables.[1]

Microwave networks

In the United States, the term gain visibility through the establishment of AT&T Long Lines division of the Bell System in 1947 when a radio relay between New York and Boston that made up of seven radio relay stations was inaugurated.[2] The division was subsequently spun out as AT&T Long Distance with the breakup of AT&T in 1984.

Though supplanted by fiber-optic networks for long-distance communications, private microwave networks between key stock markets within United States and within Europe gained popularity among high-frequency traders after 2010 as it has significantly lower levels of latency compared with fiber networks.[3][4]

References

  1. ^ Weik, Martin H. (2000), "long line", Computer Science and Communications Dictionary, Boston, MA: Springer US, p. 931, doi:10.1007/1-4020-0613-6_10644, ISBN 978-0-7923-8425-0, retrieved 2025-06-26
  2. ^ www.long-lines.net https://www.long-lines.net/documents/latest-word/P01.html. Retrieved 2025-06-26. {{cite web}}: Missing or empty |title= (help)
  3. ^ Laughlin, Gregory; Aguirre, Anthony; Grundfest, Joseph (2013-02-24), Information Transmission Between Financial Markets in Chicago and New York, arXiv:1302.5966
  4. ^ Anthony, Sebastian (2016-11-03). "The secret world of microwave networks". Ars Technica. Retrieved 2025-06-26.

See also

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