I-Fiber to the Home (FTTH) yinkqubo efaka ii-fiber optics ukusuka kwindawo ephakathi ukuya ngqo kwizakhiwo ezahlukeneyo ezifana nezindlu kunye neeflethi. Ukufakwa kwe-FTTH kuhambe indlela ende ngaphambi kokuba abasebenzisi basebenzise ii-fiber optics endaweni ye-copper ukuze bafumane i-intanethi ye-broadband.
Kukho iindlela ezimbini ezisisiseko zokusebenzisa inethiwekhi ye-FTTH ekhawulezayo:iinethiwekhi ze-optical ezisebenzayo(AON) kunye ne-passiveiinethiwekhi ze-optical(I-PON).
Ngoko ke iinethiwekhi ze-AON kunye ne-PON: yintoni umahluko?
Yintoni inethiwekhi ye-AON?
I-AON luyilo lwenethiwekhi oluhamba ukusuka kwenye indawo ukuya kwenye apho umthengi ngamnye enomgca wakhe we-fiber optic ophela kwi-optical concentrator. Inethiwekhi ye-AON iquka izixhobo zokutshintsha ezisebenza ngombane ezifana nee-routers okanye ii-switching aggregators ukulawula ukusasazwa kwesignali kunye ne-directional signaling kubathengi abathile.
Iiswitshi ziyavulwa kwaye zicinywe ngeendlela ezahlukeneyo ukuze ziqondise imiqondiso engenayo nephumayo kwiindawo ezifanelekileyo. Ukuxhomekeka kwenethiwekhi ye-AON kwitekhnoloji ye-Ethernet kwenza kube lula ukusebenzisana phakathi kwababoneleli. Ababhalisile banokukhetha i-hardware ebonelela ngamanani edatha afanelekileyo kwaye inyuswe njengoko iimfuno zabo zisanda ngaphandle kokuphinda balungiselele inethiwekhi. Nangona kunjalo, iinethiwekhi ze-AON zifuna ubuncinci i-switch aggregator enye ngombhalisile ngamnye.
Yintoni inethiwekhi yePON?
Ngokungafaniyo neenethiwekhi ze-AON, i-PON luyilo lwenethiwekhi olusebenzisa i-point-to-multipoint olusebenzisa i-passive splitters ukwahlula nokuqokelela imiqondiso ye-optical. I-Fiber splitters ivumela inethiwekhi ye-PON ukuba ikhonze ababhalisile abaninzi kwi-fiber enye ngaphandle kwesidingo sokusasaza ii-fibers ezahlukeneyo phakathi kwe-hub kunye nomsebenzisi wokugqibela.
Njengoko igama lisitsho, iinethiwekhi zePON azibandakanyi izixhobo zokutshintsha ezisebenzisa injini kwaye azinazo iifayibha ezisetyenziswa kwiindawo ezithile zenethiwekhi. Izixhobo ezisebenzayo zifuneka kuphela kumthombo nakwiziphelo zokwamkela isignali.
Kwinethiwekhi yePON eqhelekileyo, i-PLC splitter yeyona nto iphambili. Ii-fiber optic taps zidibanisa imiqondiso emininzi ye-optical zibe yimveliso enye, okanye ii-fiber optic taps zithatha igalelo elinye le-optical kwaye zilisasaze kwiimveliso ezininzi ezahlukeneyo. Ezi taps ze-PON zibhekisa kwicala elinye. Ukuze kucace, imiqondiso ye-fiber optic ingathunyelwa ngezantsi ukusuka kwi-ofisi ephakathi ukuze isasazwe kubo bonke ababhalisileyo. Imiqondiso evela kubabhalisileyo ingathunyelwa phezulu kwaye idityaniswe kwi-fiber enye ukuze inxibelelane ne-ofisi ephakathi.
IiNethiwekhi ze-AON vs PON: Umahluko kunye neenketho
Zombini iinethiwekhi zePON kunye neAON zenza umqolo we-fiber optic wenkqubo ye-FTTH, zivumela abantu kunye namashishini ukuba bafikelele kwi-Intanethi. Ngaphambi kokukhetha iPON okanye iAON, kubalulekile ukuqonda umahluko phakathi kwazo.
Ukusasazwa kweSignali
Xa kufikwa kwiinethiwekhi ze-AON kunye ne-PON, umahluko ophambili phakathi kwazo yindlela i-optical signal esasazwa ngayo kumthengi ngamnye kwinkqubo ye-FTTH. Kwinkqubo ye-AON, ababhalisile baneebhanti zefayibha ezinikezelweyo, ezibavumela ukuba babe nokufikelela kwi-bandwidth efanayo, endaweni yeyabelwana ngayo. Kwinethiwekhi ye-PON, ababhalisile babelana ngenxalenye yebhanti yefayibha yenethiwekhi kwi-PON. Ngenxa yoko, abantu abasebenzisa i-PON banokufumanisa ukuba inkqubo yabo icotha kuba bonke abasebenzisi babelana nge-bandwidth efanayo. Ukuba ingxaki ivela kwinkqubo ye-PON, kunokuba nzima ukufumana umthombo wengxaki.
Iindleko
Eyona ndleko inkulu eqhubekayo kwinethiwekhi yindleko yokunika amandla izixhobo kunye nokugcinwa kwazo. I-PON isebenzisa izixhobo ezingasebenziyo ezifuna ulondolozo oluncinci kwaye ezingenambane kunenethiwekhi ye-AON, eyinethiwekhi esebenzayo. Ngoko ke i-PON ixabisa kancinci kune-AON.
Umgama oGunyazisiweyo kunye nezicelo
I-AON ingagubungela umgama ofikelela kwiikhilomitha ezingama-90, ngelixa i-PON idla ngokuthintelwa ziintambo zentambo ze-fiber optic ukuya kuthi ga kwiikhilomitha ezingama-20 ubude. Oku kuthetha ukuba abasebenzisi be-PON kufuneka babe kufutshane ngokwendawo nomqondiso wokuqala.
Ukongeza, ukuba inxulumene nesicelo okanye inkonzo ethile, kufuneka kuqwalaselwe ezinye izinto ezininzi. Umzekelo, ukuba iinkonzo ze-RF kunye nevidiyo ziza kusetyenziswa, ngoko i-PON idla ngokuba sisisombululo esisebenzayo kuphela. Nangona kunjalo, ukuba zonke iinkonzo zisekelwe kwiProtocol ye-Intanethi, ngoko i-PON okanye i-AON inokuba yefanelekileyo. Ukuba umgama omde ubandakanyeka kwaye ukubonelela ngamandla kunye nokupholisa kwiindawo ezisebenzayo kwintsimi kunokuba yingxaki, ngoko i-PON inokuba lolona khetho lufanelekileyo. Okanye, ukuba umthengi ekujoliswe kuye ungoworhwebo okanye iprojekthi ibandakanya iiyunithi ezininzi zokuhlala, ngoko inethiwekhi ye-AON inokuba yefanelekileyo ngakumbi.
IiNethiwekhi ze-AON vs. PON: Yeyiphi i-FTTH oyithandayo?
Xa ukhetha phakathi kwe-PON okanye i-AON, kubalulekile ukuqwalasela ukuba zeziphi iinkonzo eziza kuhanjiswa ngenethiwekhi, i-topology yenethiwekhi iyonke, kunye nokuba ngoobani abathengi abaphambili. Abaqhubi abaninzi basebenzise umxube wenethiwekhi zombini kwiimeko ezahlukeneyo. Nangona kunjalo, njengoko imfuneko yokusebenzisana kwenethiwekhi kunye nokukhula kwayo iqhubeka ikhula, uyilo lwenethiwekhi luvumela ukuba nayiphi na ifayibha isetyenziswe ngokutshintshana kwizicelo ze-PON okanye ze-AON ukuhlangabezana neemfuno zexesha elizayo.
Ixesha leposi: Oktobha-24-2024