TGN-Pacific Submarine Cable System Overview

TGN-Pacific (Tyco Global Network, or Tata TGN-Pacific) was initially builded, designed and operated wholly by Tyco Telecommunications, completed in December 2002. TGN forms a self-healing ring connecting the U.S. to Japan. On May 3, 2005, Tata Communications(formerly VSNL) announced the acquisition of TGN for $130 million,or Rs 585 crore, in a cash deal.


System Profile

Cable System:

  • TGN, Tyco Global Network, Tata TGN-Pacific

Cable Length:

  • 22,800 Km

Design Capacity:

  • 7.68 Tbps over north route between Emi and Hillsboro
  • 7.68 Tbps over south route between Toyohashi and Hillsboro
  • Designed with 96x10 Gbps DWDM over 8 fiber pairs in both routes
  • 40 Gbps transmission over TGN demontration successed

Lit Capacity:

  • 1.6 Tbps (as of 2010)

Ready for Service Date:

  • December, 2002

Investment Type:

  • Private


  • Tata Communications (formerly VSNL, Tyco Telecommunications)

Initial Investment:

  • US$ 1.7 billion

Landing Stations:

TGN-Pacific Cable Map:

TGN-Pacific Cable Map

Comments (2)
1Wednesday, 10 September 2014 09:20
Please can you update the current status as on date about the LIT status
2Tuesday, 09 May 2017 20:58
Dear Communications Colleague,
You perhaps read about “Pacific Wiretap” as a feature fiction review by editor Kevin Summers in the September 2011 issue of Submarine Telecoms Forum. Now, in the era of Corporate Cybercrime, Political Wiretaps, and Global Surveillance, the book has taken on increased relevance, as multi-referenced in The Undersea Network by Nicole Starosielski, NYU professor (Duke University Press, Durham and London, 2016) .
If you haven’t yet had a chance to give it a read, you may want to try it now. It’s available on Amazon. Take a peek:
Read, learn, have fun! Have no fear - the Good Guys win!
Patrick Downey
AT&T (ret.)
Asia-Pacific Region

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