The Telstra Endeavour is a submarine cable connecting Sydney and Hawaii. The cable went live in October 2008,[1] with a capacity of 1.28 terabits per second in the future (currently at 100 gigabits per second). It was proposed[2][3] on 28 March 2007 by Telstra, the largest telecommunications carrier in Australia.

Telstra Endeavour
Cable typeFibre-optic
First trafficOctober 2008
Design capacity1.28 Tbit/s
Lit capacity100 Gbit/s
Built byAlcatel-Lucent
Landing pointsTamarama Beach, Sydney
Waianae, Hawaii
Area servedPacific Ocean
WebsiteTelstra Endeavour Cable

Initially with a lit capacity of 80 Gbit/s, Telstra announced an increased capacity to 100 Gbit/s in January 2015.[4]

Landing points


The landing points are:[5]



Telstra announced that the cable would connect Sydney and Hawaii with a 9,000 km (5,600 mi) link, the largest ever built and owned by an Australian company, providing a transmission capacity of 1.28 terabit/s to Hawaii. The cable will be linked to others from Hawaii to the US mainland.

The manufacture and laying of the cable was the responsibility of Alcatel-Lucent, which also supplied Telstra's two cables across Bass Strait and its Tasman Sea (Tasman 2) cable. Alcatel-Lucent is basing this turn-key project[6] on the "Alcatel 1620 Light Manager"[1] submarine line termination equipment that uses dense wavelength-division multiplexing (DWDM). No cost was revealed, however it is estimated around $300 million (AUD).

See also



  1. ^ "Telstra doubling lit capacity on Endeavour Hawaii cable | CommsDay". Archived from the original on 31 December 2009. Retrieved 16 April 2010. Telstra doubling lit capacity on Endeavour Hawaii cable
  2. ^ Telstra Media Release, "Telstra continues aggressive investment with Australia to USA connection", 28 March 2007
  3. ^ Rossi, Sandra, "Telstra unveils largest submarine cable connection to US – 9000km from Sydney to Hawaii", Computerworld, 29 March 2007
  4. ^ "Telstra hits 100G on key Asia-Pac submarine cables". Retrieved 21 July 2023.
  5. ^ "Next Generation Cable Systems, Telstra Endeavour, Sydney, Australia to Hawaii, USA" (PDF). Retrieved 9 July 2009.
  6. ^ Alcatel-Lucent media release Telstra awards Alcatel-Lucent 9,000 km submarine network contract to support IP network transformation strategy, Paris, 28 March 2007

21°33′14″N 158°14′34″W / 21.554019°N 158.242889°W / 21.554019; -158.242889