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.Inethiwekhi ye-optical esebenzayo ibhekisela ekuhanjisweni kwee-router, ii-aggregators zokutshintsha, izixhobo ezisebenzayo ze-optical kunye nezinye izixhobo zokutshintsha phakathi kwezixhobo zeofisi ephakathi kunye neeyunithi zokusasazwa komsebenzisi ngexesha lokuhanjiswa kwesignali.Ezi switchgears ziqhutywa ngumbane ukulawula ukuhanjiswa komqondiso kunye nemiqondiso yesalathiso 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 ezifana nedatha ye-IP, ilizwi, kunye nevidiyo zihanjiswa yi-OLT ebekwe kwiofisi ephakathi kwindlela yokusasazwa nge-1: N i-passive optical splitter kwi-ODN Kuzo zonke iiyunithi ze-ONU kwi-PON;kwicala elinyukayo, ulwazi oluninzi lwenkonzo oluvela kwi-ONU nganye ludityaniswe kwi-fiber optical efanayo ngokusebenzisa i-1: N i-passive optical combiner kwi-ODN ngaphandle kokuphazamisana, kwaye ekugqibeleni ithunyelwe kwi-OLT kwi-ofisi ephakathi ukuze ifike ekupheleni.
Inethiwekhi ye-passive optical ibandakanya i-terminal optical line (OLT) efakwe kwisikhululo sokulawula esiphakathi, kunye neqela leeyunithi zenethiwekhi ezihambelanayo (ONUs) ezifakwe kwindawo yomsebenzisi.Inethiwekhi yokusabalalisa i-optical (ODN) phakathi kwe-OLT kunye ne-ONU iqulethe iifiber ze-optical kunye ne-splitter passive or 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.