The Southern Cross Cable is a trans-Pacific network of telecommunications cables commissioned in 2000. The network is operated by the Bermuda-registered company Southern Cross Cables Limited.
The network has 28,900 km of submarine and 1,600 km of terrestrial fiber optic cables, all which operate in a triple-ring configuration. Initially, each cable had a bandwidth capacity of 120 gigabit/s. In April 2008 this capacity was doubled, and was once again upgraded to 860 gigabit/s at the end of 2008. Southern Cross upgraded the existing system to 1.2 Tbit/s in May 2010. After successful trials of 40G technology the first 400G of a planned 800G upgrade has been completed in February 2012, and the remaining 400G was completed in December 2012. An additional 400G was deployed utilizing 100G coherent wavelength technology in July 2013, taking total system capacity to 2.6Tbit/s, with an additional 500Gbit/s to be deployed per segment by Q2 2014, increasing total system capacity to 3.6Tbit/s. About every two or three years, the Southern Cross Company makes an effort to upgrade the cables in some way or another. In June 2014 a further 900Gbps was added. The system currently runs at circa 10Tbs employing a mix of 100Gbs, 200Gbs and 250Gbs wavelengths.
Southern Cross offers capacity services from 100M/STM-1 to 100Gbit/s OTU-4, including 1G, 10G and 40G Ethernet Private Line services.
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