Ubuchwepheshe be-GPON (Gigabit-Capable Passive Optical Network) bubuchwepheshe bokufinyelela be-broadband obunesivinini esikhulu, obusebenzayo, obunamandla amakhulu obusetshenziswa kakhulu kumanethiwekhi okufinyelela e-fiber-to-the-home (FTTH). Kunethiwekhi ye-GPON,I-OLT (Optical Line Terminal)kanye ne-ONT (Optical Network Terminal) izingxenye ezimbili ezibalulekile. Ngamunye uthatha imithwalo yemfanelo ehlukene futhi asebenze ndawonye ukuze afinyelele ukudluliswa kwedatha ngesivinini esikhulu nangempumelelo.
Umehluko phakathi kwe-OLT ne-ONT mayelana nendawo ebonakalayo kanye nokuma kwendima: I-OLT ivamise ukuba phakathi nendawo yenethiwekhi, okungukuthi, ihhovisi elimaphakathi, elidlala indima "yomphathi". Ixhuma ama-ONT amaningi futhi inesibopho sokuxhumana neONTsngasohlangothini lomsebenzisi, ngenkathi uhlanganisa futhi ulawula ukudluliswa kwedatha. Kungashiwo ukuthi i-OLT iwumongo nomphefumulo wayo yonke inethiwekhi ye-GPON. I-ONT itholakala ekugcineni komsebenzisi, okungukuthi, emaphethelweni enethiwekhi, idlala indima "yesosha". Kuyidivayisi esohlangothini lomsebenzisi wokugcina futhi isetshenziselwa ukuxhuma izisetshenziswa zetheminali, njengamakhompyutha, ama-TV, amarutha, njll., ukuxhuma abasebenzisi kunethiwekhi.
Umehluko wokusebenza:I-OLT ne-ONT inokugxila okuhlukile. Imisebenzi esemqoka ye-OLT ihlanganisa ukuhlanganisa idatha, ukuphatha nokulawula, kanye nokudlulisa nokwamukela amasignali okubona. Inesibopho sokuhlanganisa ukusakazwa kwedatha kusuka kubasebenzisi abaningi ukuze kuqinisekiswe ukudluliswa kwedatha okusebenzayo. Ngesikhathi esifanayo, i-OLT iphinde ihlanganyele namanye ama-OLT kanye nama-ONT ngokusebenzisa izivumelwano zokuxhumana ukuze uphathe futhi ulawule yonke inethiwekhi. Ngaphezu kwalokho, i-OLT iphinde iguqule amasignali kagesi abe amasignali optical futhi iwathumele ku-fiber optical. Ngesikhathi esifanayo, iyakwazi ukuthola amasignali optical kusuka ku-ONT futhi iguqule ibe yizimpawu zikagesi ukuze zicutshungulwe. Umsebenzi oyinhloko we-ONT ukuguqula amasignali optical adluliselwa ngemicu ye-optical ibe amasignali kagesi futhi athumele lezi zibonakaliso zikagesi kumishini ehlukahlukene yomsebenzisi. Ngaphezu kwalokho, i-ONT ingathumela, ihlanganise, futhi icubungule izinhlobo ezihlukahlukene zedatha evela kumakhasimende futhi iyithumele ku-OLT.
Umehluko ezingeni lobuchwepheshe:I-OLT ne-ONT futhi inomehluko ekwakhiweni kwehadiwe kanye nohlelo lwesoftware. I-OLT idinga amaphrosesa asebenza kahle kakhulu, inkumbulo yomthamo omkhulu, nezixhumi ezibonakalayo ezinesivinini esikhulu ukuze zibhekane nenani elikhulu lokucubungula idatha kanye nezidingo zokudlulisela. I-ONT idinga ihadiwe evumelana nezimo kanye nomklamo wesofthiwe ukuze ivumelane nezidingo ezihlukene zabasebenzisi abahlukene kanye nezindawo zokusebenzelana ezihlukene zamadivaysi ahlukene etheminali.
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I-OLT ne-ONT ngayinye ithatha izibopho nemisebenzi ehlukene kunethiwekhi ye-GPON. I-OLT itholakala esikhungweni senethiwekhi futhi inesibopho sokuhlanganisa idatha, ukuphatha nokulawula, kanye nokudluliselwa nokwamukela amasignali optical; kuyilapho i-ONT itholakala ekugcineni komsebenzisi futhi inesibopho sokuguqula amasignali optical abe amasignali kagesi futhi ayithumele emishinini yomsebenzisi. Laba bobabili basebenza ndawonye ukuze inethiwekhi ye-GPON inikeze izinsiza zokudlulisa idatha ezisheshayo nezisebenzayo ukuze kuhlangatshezwane nezidingo zabasebenzisi zokufinyelela i-broadband.
Isikhathi sokuthumela: Apr-28-2024
