The APNG-2

submarine communications cable A submarine communications cable is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean and sea. The first submarine communications cables laid beginning in the 1850s carried tel ...

was constructed to link

Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...

directly to

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

and indirectly to

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

and the rest of the world, and has been in service from late 2006. The new cable is a collaboration between Telikom PNG,

Telstra Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets voice, mobile, internet access, pay television and other products and services. It is a member of the S&P/ASX 20 ...

(in Australia), and

Telecom New Zealand Spark New Zealand Limited is a New Zealand telecommunications company providing fixed-line telephone services, a mobile phone network, internet access services, and (through its Spark Digital division) ICT services to businesses. It was know ...

. APNG-2 replaced the APNG-1 cable, a coaxial copper cable of 16 Mbit/s, retired in early 2006.

Construction

APNG-2 reused part of the

PacRimWest PacRimWest was a twin-pair 560Mbit/s optical submarine telecommunications cable which served as Australia's main link to the world along with its partner cables Tasman2 (connecting Australia to New Zealand) and PacRimEast (connecting New Zealan ...

optical fibre An optical fiber, or optical fibre in Commonwealth English, is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair. Optical fibers are used most often as a means to ...

cable that formerly linked Australia to

Guam Guam (; ch, Guåhan ) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. It is the westernmost point and territory of the United States (reckoned from the geographic cent ...

and on to

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

Recovery and relaying

An 1,800 km section of the PacRimWest cable was recovered from just south of Guam, with the ship sailing towards the

Solomon Islands Solomon Islands is an island country consisting of six major islands and over 900 smaller islands in Oceania, to the east of Papua New Guinea and north-west of Vanuatu. It has a land area of , and a population of approx. 700,000. Its capita ...

. The ship then recovered a loop of the PacRimWest cable off

Rockhampton, Queensland Rockhampton is a city in the Rockhampton Region of Central Queensland, Australia. The population of Rockhampton in June 2021 was 79,967, Estimated resident population, 30 June 2018. making it the fourth-largest city in the state outside of the ...

, broke it, and spliced it to the Sydney end of the recovered 1,800 km section, sailed towards PNG, made landfall at Ela Beach near

Port Moresby (; Tok Pisin: ''Pot Mosbi''), also referred to as Pom City or simply Moresby, is the capital and largest city of Papua New Guinea. It is one of the largest cities in the southwestern Pacific (along with Jayapura) outside of Australia and New Z ...

, where a terminal station from Guam was re-established to link to the Telikom PNG network.

Capability

PacRimWest is a fibre-optic cable with two fibre pairs. These will be used to provide APNG-2 with around 1100 Mbit/s data capability, consisting of 2 x 565 Mbit/s PDH systems with all electronic regeneration.

Cost

The reuse of the cable is expected to save about 80% of the cost of a new cable:

USD The United States dollar (symbol: $; code: USD; also abbreviated US$ or U.S. Dollar, to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the official ...

$11 million v $60 m.

Testing

A 300 km segment of the PacRimWest cable was recovered and tested from a section south of the intended recovery route. It was found to be sound and suitable for reuse.

Cable ship

The

cable ship A cable layer or cable ship is a deep-sea vessel designed and used to lay underwater cables for telecommunications, electric power transmission, military, or other purposes. Cable ships are distinguished by large cable sheaves for guiding cabl ...

being used is CS ''Ile de Re'' (named after the

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

west coast island,

Île de Ré Île de Ré (; variously spelled Rhé or Rhéa; Poitevin: ''ile de Rét''; en, Isle of Ré, ) is an island off the Atlantic coast of France near La Rochelle, Charente-Maritime, on the northern side of the Pertuis d'Antioche strait. Its highe ...

External links

Telikom PNG
{{Submarine communications cables in the Pacific Ocean Telecommunications in Papua New Guinea Submarine communications cables in the Pacific Ocean Australia–Papua New Guinea relations 2006 establishments in Australia 2006 establishments in Papua New Guinea