Article Overview
The Tonga Cable, a multi-core submarine fiber-optic system, was manufactured and laid by TE SubCom (now SubCom).
The Tonga Cable System is an 827-kilometer submarine fiber-optic cable connecting Sopu, Nuku'alofa in Tonga to Vatuwaqa, Suva in Fiji, linking Tonga to international networks via the Southern Cross Cable Network . The cable was commissioned in August 2013 and was originally designed with two fiber pairs, providing sufficient capacity for Tonga's national traffic profile at the time . Over the years, optical upgrades have increased its practical capacity without physical changes to the wet plant .
Manufacturer and Installation
The manufacturer and installer of the Tonga Cable was TE SubCom, a leading global provider of submarine communications technology . TE SubCom supplied the cable system, including the multi-core optical fibers, and executed the turnkey installation contract between Tonga and Fiji. The project was completed on time and within budget, with minor adjustments to cover additional cable equipment required for installation .
Ownership and Management
The cable is owned and operated by Tonga Cable Limited (TCL), a state-owned enterprise formed to manage the submarine network . TCL is a joint venture between the Government of Tonga, Tonga Communications Corporation (TCC), and Digicel Tonga, with the government holding a majority stake . The system has been extended domestically to connect outer islands such as Ha'apai and Vava'u, enhancing inter-island connectivity .
Funding and Project Background
The construction of the Tonga Cable was partially financed by the World Bank and the Asian Development Bank, with the remaining investment provided by the Tongan government and TCC . The total project cost was approximately $32–33 million, covering civil works, cable procurement, consulting services, and taxes . The cable has significantly improved internet capacity, reduced latency, and lowered wholesale prices in Tonga . In summary, TE SubCom (now SubCom) is the manufacturer of the multi-core optical cable used in Tonga, while Tonga Cable Limited manages and operates the system, ensuring reliable international connectivity for the country .
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