Columbus II

COLUMBUS II is an optical, repeatered, transatlantic telephone cable. It is approximately 12,102 km (7,520 mi; 6,535 nmi) in length. It entered into commercial service in 1994.[1] The system, along with the Americas cable, was the first to use the Erbium-doped fiber amplifier (EDFA) as its optical amplifier repeaters.[2]

It is in 3 segments has landing points in:

  • Columbus II - A (1121 km) - 560 MB/s

1. Cancún, Mexico
2. West Palm Beach, Florida, United States

  • Columbus II - B (2068 km) - 2500 MB/s

2. West Palm Beach, Florida, United States
3. Magens Bay, St. Thomas, U.S. Virgin Islands

  • Columbus II - C (9116 km) - 560 MB/s

3. Magens Bay, St. Thomas, U.S. Virgin Islands
4. Funchal, Madeira, Portugal
5. Sardina, Gran Canaria, Spain
6. Palermo, Sicily, Italy

See also

References
  1. Juggerst, Patrick (July 1995). "AT&T's Undersea Fiber-Optic Cable Systems". Sea Technology. Arlington, VA: Compass Publications, Inc. 36 (7): 29–30, 32–34.
  2. Repeatered Fiber Optic Submarine Systems. IGI Consulting (Report). Boston, MA: IGI Consulting, Inc. 1998. p. 27. Retrieved 14 June 2020.


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