IFayibha ukuya eKhaya (FTTH) yinkqubo efaka i-fiber optics ukusuka kwindawo esembindini ngqo kwizakhiwo ezizimeleyo ezifana nezindlu kunye namagumbi. Ukusasazwa kwe-FTTH kufike indlela ende ngaphambi kokuba abasebenzisi bamkele i-fiber optics endaweni yobhedu kufikelelo lwe-intanethi yebroadband.
Kukho iindlela ezimbini ezisisiseko zokusebenzisa inethiwekhi ye-FTTH enesantya esiphezulu:iinethiwekhi zamehlo ezisebenzayo(AON) kunye ne-passiveiinethiwekhi zamehlo(PON).
Ke iinethiwekhi ze-AON kunye nePON: yintoni umahluko?
Yintoni inethiwekhi ye-AON?
I-AON yi-point-to-point network architecture apho umrhumi ngamnye unomgca wakhe we-fiber optic opheliswe kwi-concentrator optical. inethiwekhi ye-AON iquka izixhobo zokutshintsha ezisebenza ngombane ezifana nee-routers okanye ii-aggregators zokutshintsha ukulawula ukuhanjiswa kwesignali kunye nokubonakaliswa kolwalathiso kubathengi abathile.
Ukutshintsha kuvuliwe kwaye kuvaliwe ngeendlela ezahlukeneyo zokuqondisa izibonakaliso ezingenayo neziphumayo kwiindawo ezifanelekileyo.Inethiwekhi ye-AON yokuxhomekeka kwi-teknoloji ye-Ethernet yenza ukusebenzisana phakathi kwababoneleli lula. Ababhalisi banokukhetha i-hardware ebonelela ngeereyithi ezifanelekileyo zedatha kunye nokunyusa njengoko iimfuno zabo zanda ngaphandle kokuphinda kuqwalaselwe inethiwekhi. Nangona kunjalo, iinethiwekhi ze-AON zifuna ubuncinci i-aggregator enye yokutshintsha umrhumi ngamnye.
Yintoni inethiwekhi yePON?
Ngokungafaniyo neenethiwekhi ze-AON, i-PON yi-point-to-multipoint network architecture esebenzisa i-splitter passive ukwahlula kunye nokuqokelela iimpawu ze-optical. I-Fiber splitters ivumela inethiwekhi ye-PON ukuba isebenze ababhalisi abaninzi kwifiber enye ngaphandle kwesidingo sokusebenzisa iifayili ezahlukeneyo phakathi kwe-hub kunye nomsebenzisi wokugqibela.
Njengoko igama libonisa, uthungelwano lwePON alubandakanyi izixhobo zokutshintsha iimoto kunye nokwabelana ngeebhandle zefiber kwiinxalenye zenethiwekhi. Izixhobo ezisebenzayo zifuneka kuphela kumthombo kunye neziphelo zokufumana uphawu.
Kwinethiwekhi yePON eqhelekileyo, i-PLC splitter yeyona nto iphambili. Iimpompo ze-Fiber optic zidibanisa iimpawu ezininzi ze-optical kwimveliso enye, okanye iimpompo zefiber optic zithatha igalelo elinye kwaye zisasazeke kwiziphumo ezininzi. Ezi impompo ze-PON zimacala omabini. Ukucaca, iimpawu zefiber optic zinokuthunyelwa ezantsi ukusuka kwiofisi ephakathi ukuya kusasazwa kubo bonke ababhalisi. Iimpawu ezivela kubabhalisi zingathunyelwa phezulu kwaye zidibanise kwifiber enye yokunxibelelana neofisi ephakathi.
I-AON vs i-PON Networks: Umahluko kunye noKhetho
Zombini iinethiwekhi ze-PON kunye ne-AON zenza i-fiber optic backbone yenkqubo ye-FTTH, evumela abantu kunye namashishini ukuba bafikelele kwi-Intanethi. Ngaphambi kokukhetha i-PON okanye i-AON, kubalulekile ukuqonda umahluko phakathi kwabo.
Ukwabiwa koMqondiso
Xa kuziwa kwiinethiwekhi ze-AON kunye ne-PON, umehluko omkhulu phakathi kwabo yindlela uphawu lwe-optical lusasazwa ngayo kumthengi ngamnye kwinkqubo ye-FTTH. Kwinkqubo ye-AON, ababhalisi bazinikele kwiingxowa zefiber, ezivumela ukuba bafikelele kwi-bandwidth efanayo, kunokuba babelane. Kuthungelwano lwePON, ababhalisi babelana ngenxenye yothungelwano lwefiber bundle kwiPON. Ngenxa yoko, abantu abasebenzisa i-PON banokufumanisa ukuba inkqubo yabo iyacotha kuba bonke abasebenzisi babelana nge-bandwidth efanayo. Ukuba ingxaki yenzeka ngaphakathi kwenkqubo yePON, kunokuba nzima ukufumana umthombo wengxaki.
Iindleko
Eyona nkcitho inkulu eqhubekayo kuthungelwano lixabiso lezixhobo zokunika amandla kunye nokugcinwa. I-PON isebenzisa izixhobo ze-passive ezifuna ukulungiswa okuncinci kwaye akukho mbane wombane kunenethiwekhi ye-AON, inethiwekhi esebenzayo. Ke iPON itshiphu kuneAON.
Umgama wokuFumana kunye nezicelo
I-AON inokugubungela umgama ongangeekhilomitha ezingama-90, ngelixa i-PON iqhele ukunqandwa ziintambo zentambo zefiber optic ukuya kwiikhilomitha ezingama-20 ubude. Oku kuthetha ukuba abasebenzisi be-PON kufuneka babe kufutshane ngokwejografi kuphawu lokuqala.
Ukongezelela, ukuba idibene nesicelo okanye inkonzo ethile, inani lezinye izinto kufuneka ziqwalaselwe. Umzekelo, ukuba i-RF kunye neenkonzo zevidiyo ziza kuthunyelwa, i-PON idla ngokuba sisisombululo esisebenzayo. Nangona kunjalo, ukuba zonke iinkonzo zisekwe kwiProtocol ye-Intanethi, iPON okanye i-AON inokufaneleka. Ukuba imigama emide iyabandakanyeka kwaye ukubonelela ngamandla kunye nokupholisa kumacandelo asebenzayo ebaleni kunokuba yingxaki, ke i-PON inokuba lolona khetho lulungileyo. Okanye, ukuba umthengi ojoliswe kuyo urhwebo okanye iprojekthi ibandakanya iiyunithi zokuhlala ezininzi, ngoko inethiwekhi ye-AON inokufaneleka ngakumbi.
I-AON vs. PON Networks: Yeyiphi i-FTTH oyikhethayo?
Xa ukhetha phakathi kwe-PON okanye i-AON, kubalulekile ukuqwalasela ukuba zeziphi iinkonzo eziza kuhanjiswa kwinethiwekhi, i-topology yenethiwekhi jikelele, kwaye ngubani na abathengi abaphambili. Abaqhubi abaninzi basebenzise umxube wazo zombini iinethiwekhi kwiimeko ezahlukeneyo. Nangona kunjalo, njengoko imfuno yokusebenzisana kwenethiwekhi kunye ne-scalability iqhubeka ikhula, i-architectures yenethiwekhi ivame ukuvumela nayiphi na i-fiber ukuba isetyenziswe ngokutshintshisanayo kwi-PON okanye kwizicelo ze-AON ukuhlangabezana neemfuno zexesha elizayo.
Ixesha lokuposa: Oct-24-2024