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January 25, 2022 07:25 pm
Original Link: https://tech.slashdot.org/story/22/01/25/1835216/how-will-tongas-broken-internet-cable-be-mended?utm_source=rss1.0mainlinkanon&utm_medium=feed
How Will Tonga's Broken Internet Cable Be Mended?
An undersea fibre-optic cable which connects Tonga to the rest of the world was severed during the eruption of a volcano. From a report: New Zealand's ministry of foreign affairs says it could take more than a month to repair breaks in the 49,889km (31,000miles) of cable that serves the South Pacific. The undersea eruption - followed by a tsunami - led to Tonga's 110,000 people being cut off. A 2G wireless connection has been established on the main island, using a satellite dish from the University of the South Pacific. But the service is patchy, and internet services run slowly. The cable, which is operated by Tonga Cable, is believed to have broken about 37km (23 miles) offshore. According to Reuters, fault-finding conducted by the company in the aftermath of the volcano seemed to confirm a cable break. he process of mending it is actually quite simple, according to principal engineer at Virgin Media, Peter Jamieson, who is also vice-chairman of the European Subsea Cable Association. "They will send a pulse of light from the island and a machine will measure how long it takes to travel and this will establish where the break is," he explained. Then a cable-repair boat will be sent to the location of the first break. It will use either an ROV (remotely-operated underwater vehicle) or a tool known as a grapnel (basically a hook on a chain) to retrieve the broken end. That will be re-joined to fresh cable on board the boat and then the same process will happen at the other end of the break. If all goes well, the whole process will take between five and seven days. It will take time to get a cable repair boat to the archipelago and the closest one is currently stationed in Port Moresby, Papua New Guinea - about 4,700km (2,900 miles) away. The specialised ship, The Reliance, serves more than 50,000km (31,000 miles) of cable in the South Pacific.Read more of this story at Slashdot.
Original Link: https://tech.slashdot.org/story/22/01/25/1835216/how-will-tongas-broken-internet-cable-be-mended?utm_source=rss1.0mainlinkanon&utm_medium=feed
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