Sikhuluma ngengqalasizinda engaphansi kwamanzi okufanele isebenze eminyakeni emithathu ezayo. Lawa ikhebula i-2Africa, ezungeza izwekazi lase-Afrika, i-transatlantic Dunant kanye ne-JGA North, ezoxhuma i-Japan ne-Australia okokuqala ngqa eminyakeni engama-20. Ingxoxo ingaphansi kokusikwa.
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Ikhebula elizungeza i-Afrika
Maphakathi noMeyi, izinkampani ezimbalwa ze-IT kanye nabaqhubi bezingcingo - okuhlanganisa i-Facebook, i-Orange, i-China Mobile kanye ne-Internet Society - mayelana nezinhlelo zokubeka intambo ehamba ngaphansi kolwandle 2 Afrika ngobude bamakhilomitha ayizinkulungwane ezingama-37. Izoxhumanisa iYurophu, iMpumalanga Ephakathi namanye amazwe ayishumi nesithupha e-Afrika, lapho abantu ababalelwa ebhiliyoni bebhekene nokuntuleka kwe-inthanethi.
Umkhawulokudonsa 2Afrika 180 Tbit/s. Lokhu kuphakathi ngaphezu kwazo zonke izintambo eziya ezwenikazi lase-Afrika okwamanje. Iphrojekthi phakathi kwalezo eziqhathanisekayo ngesilinganiso, lapho zisebenzisa umqhubi we-aluminium esikhundleni sethusi. Yena i-voltage yehla, ekuvumela ukuthi ukwandise inani lamapheya e-fiber kukhebula.
Ikhebuli entsha izokwakhiwa kusetshenziswa ubuchwepheshe be-Spatial Division Multiplexing (SDM), obuthuthukisa ukusebenza kahle kwe-spectral. Kulokhu, izingxenye ze-optical zama-amplifiers aphakathi hhayi ngepheya elilodwa lemicu, kodwa eminingana ngesikhathi esisodwa, okuthi kwezinye izimo kwandisa ukuphuma .
Izindleko eziqondile zokuqalisa iphrojekthi ye-2Africa azikaziwa, kodwa ochwepheshe be-Bloomberg libiza ibhiliyoni lamadola. Uhlelo lwekhebula luhlelelwe ukuthi luqale ukusebenza ngo-2023–2024.
Kodwa ngaphambi kwalesi sikhathi, izintambo eziningi ezingaphansi kwamanzi zizoqala ukusebenza.
Ubani omunye othuthukisa ingqalasizinda engaphansi kwamanzi?
Ngo-2018 Google mayelana nezinhlelo zokubeka ikhebula le-transatlantic elingamakhilomitha ayizinkulungwane ezingu-6,6 ubude elixhumanisa ugu lwase-US neFrance. Uhlelo lwabizwa ngokuthi i-Dunant. Lapha, njengasendabeni ye-2Africa, ubuchwepheshe be-SDM buzosetshenziswa. Izosiza ukunikeza umthamo we-250 Tbit/s futhi yandise amandla enye yezindawo ezimatasatasa. Ezintamboni zase-Atlantic 55% idatha ngaphezu kwamakhebuli ase-Pacific.
I-Dunant kuhlelwe ukuthi iqale ukusebenza ekupheleni kwalo nyaka. NgoMashi, inkampani yezokuxhumana yaseFrance i-Orange ingxenye yayo yekhebula eya emishinini yetheminali emphakathini .
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Izosetshenziswa kuleli sonto Uhlelo lwe-JGA North. Ubude bayo buyi-2,7 amakhilomitha ayizinkulungwane, futhi ukuphuma kwayo kungu-24 Tbit / s, kodwa ngonyaka ozayo kuzokwenyuswa ku-30 Tbit / s. I-JGA North ixhuma i-Japan ne-Guam futhi ixhumeke ku-JGA South, ehamba phakathi kwe-Guam ne-Sydney. Lolu hlelo lwe-JGA bekuyikhebula lokuqala likamkhumbi-ngwenya eminyakeni engu-20 ukuxhuma i-Japan ne-Australia.
Ngo-2021 esifundeni sase-Asia enye ikhebuli ehamba ngaphansi kolwandle engu-128 Tbps yi-SJC2. Izoxhuma iChina, iJapan, iSingapore, iSouth Korea neTaiwan. Izindleko zalolu hlelo zilinganiselwa ku-$439 million. Ikhebuli eyengeziwe kuyodingeka iqinise ingqalasizinda futhi ibe yindawo yokugcina izinto uma kwenzeka kuba nekhefu elingalindelekile kulesi sigaba .
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Source: www.habr.com
