Not a calendar week aftertwo monumental undersea telecommunication cable television were click — accord to BBC News , most in all likelihood due not to Godzilla but a single tank ship “ dragging its anchor along the ocean bed”—and the resort are well underway . But how in the hell do you remedy a nine - layer steel - reinforced cable television located late beneath the surface of the Mediterranean ?
https://gizmodo.com/undersea-telecom-cables-mysteriously-cut-digitally-str-351078
The first thing you ’re gon na need is an Optical Time Domain Reflectometer . Engineers on shoring use it to send tripping pulse down the cable , which reflect back at the breaking point , providing a measurable delay that can translate to distance within “ ten of meters . ”
Once you get your position guestimation , you posse up your team of about 50 mass and throng them onto — what else?—a cable’s length ship . This ship will postulate remotely operated vehicles ROVs ( see James Cameron ) that you force down to the ocean base , roll around until you spot your breakage .
When the ROV see the affected transmission line section , it may dress off the nasty bits ( just leaving them there to become part of somebody ’s Modern home ground ) and convey up the two new ends . On card the ship , operator can splice a new section between the flawlessly trimmed end of the cable television break , and unload it back down .
Sometimes the ROV ca n’t find the segment , or ca n’t get the right grip on it . In these cases , the technicians send down a centuries - one-time equipment call a grapnel . The grapnel snags the cable wherever it can , and jerk it up to the sauceboat for the end prune and the haunt task .
The overseas telegram itself is a tricky fix , because it is made up of nine layers , which you may see in the BBC ’s diagram below . If you are an experient submarine - line maintenance man who would care to add anything to this admittedly brief primer , I further you . And for the love of Pete , do n’t try any of this cable haunt stuff at home ! [ BBC News ]
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