Yintoni i-AON?
I-AON yinethiwekhi ye-optical esebenzayo, ngokuyininzi ithatha i-point-to-point (PTP) i-architecture yenethiwekhi, kwaye umsebenzisi ngamnye unokuba nomgca we-fiber optical ozinikeleyo. Umsebenzi womnatha osebenzayo ubhekiselele ekumiselweni kweiirotha, ii-aggregators zokutshintsha, izixhobo ezisebenzayo ze-optical kunye nezinye izixhobo zokutshintsha phakathi kwezixhobo zeofisi ephakathi kunye neeyunithi zokusasazwa komsebenzisi ngexesha lokuhambisa umqondiso. Ezi zixhobo zokutshintsha ziqhutywa ngumbane ukulawula ukuhanjiswa komqondiso kunye neempawu zesalathiso kubathengi abathile. Izixhobo ezisebenzayo ze-optical zibandakanya umthombo wokukhanya (i-laser), i-receiver optical, imodyuli ye-transceiver optical, i-amplifier optical (i-fiber amplifier kunye ne-semiconductor optical amplifier).
Yintoni iPON?
I-PON yi-Passive Optical Network, i-point-to-multipoint network structure, kwaye iyona teknoloji iphambili ye-FTTB/FTTH. Inethiwekhi ye-Passive optical ibhekisela kwi-ODN (inethiwekhi yokusabalalisa i-optical) isebenzisa kuphela iifayili ze-optical kunye namacandelo angenayo, kwaye idinga kuphela ukusebenzisa izixhobo eziphilayo kumthombo wesignali kunye nesiphelo sokufumana umqondiso. Kwinkqubo ye-PON eqhelekileyo, i-splitter ye-optical iyona ngundoqo, kwaye i-optical splitter isetyenziselwa ukwahlula kunye nokuqokelela iimpawu ze-optical ezithunyelwa ngenethiwekhi. Ezi zahluli ze-PON zimbini. Kwisalathiso esisezantsi, iinkonzo ezininzi ezinje ngedatha ye-IP, ilizwi, kunye nevidiyo zisasazwa yiOLTibekwe kwi-ofisi esembindini kwindlela yosasazo nge-1:N i-passive optical splitter kwi-ODN Kubo bonke.I-ONUiiyunithi kwiPON; kwicala elinyukayo, ulwazi lwenkonzo ezininzi ukusuka kwindawo nganyeI-ONUidityaniswe kwi-fiber optical efanayo nge-1: N i-passive optical combiner kwi-ODN ngaphandle kokuphazamisana, kwaye ekugqibeleni ithunyelweOLTkwi-ofisi ephakathi ukuya ekupheleni kolwamkelo.
Umsebenzi womnatha womnatha wokusebenza uquka i-terminal yelayini yokubona (OLT) efakwe kwisikhululo solawulo esiphakathi, kunye neqela leeyunithi zothungelwano oluhambelanayo (Ii-ONU) efakwe kwindawo yomsebenzisi. Inethiwekhi yonikezelo lwamehlo (ODN) phakathi kweOLTkwaye iI-ONUiqulethe iifibers optical kunye ne-passive splitters okanye i-couplers. I-PON ihlukaniswe yaba yimigangatho emithathu yobugcisa: i-ATM-based APON (ATM PON), i-EPON esekelwe kwi-Ethernet (i-Ethernet PON), kunye ne-GPON (i-Gigabit PON) esekelwe kwi-General Frame Protocol.
Kwinethiwekhi ye-AON, umsebenzisi unomgca we-fiber optical ozinikeleyo, okulula ukugcinwa kwenethiwekhi kamva, ukwandiswa kwamandla, ukuphuculwa kwenethiwekhi, njl njl. Ukongezelela, inethiwekhi ye-AON ihlanganisa uluhlu olubanzi malunga neekhilomitha ezili-100; uthungelwano lwePON ludla ngokulinganiselwa kwiintambo zefiber optic ukuya kuthi ga kwiikhilomitha ezingama-20. I-AON ikakhulu ikhokela izibonakaliso ze-optical ngokusebenzisa izixhobo ezisebenzayo, kwaye i-PON isebenzisa izixhobo ezingabonakaliyo ngaphandle kokunikezelwa kwamandla, okukhokelela kwiindleko eziphezulu zokuthunyelwa kwenethiwekhi ye-AON kunePON.