Nrog rau kev txhim kho cov thev naus laus zis, kev sib txuas lus kho qhov muag thiab software thev naus laus zis thiab kev siv dav dav ntawm TCP / IP raws tu qauv, kev sib txuas lus network, computer network thiab TV network yuav sib koom ua ke thiab sib koom ua ke hauv IP muaj peev xwm muab lub suab, cov ntaub ntawv thiab cov duab ntawm Tib lub sijhawm Broadband multimedia kev sib txuas lus network rau kev lag luam. Kev nkag mus rau tooj liab tam sim no, kev siv wireless, thiab LAN txoj kev nkag tsis yooj yim kom ua tiav lub hom phiaj no, tab sis nws yooj yim rau FTTH.
FTTH tsis tsuas yog muab ntau dua bandwidth, tab sis kuj txhim kho qhov pom tseeb ntawm lub network rau cov ntaub ntawv tawm tswv yim, tus nqi, wavelengths thiab cov txheej txheem, txo cov kev xav tau rau ib puag ncig thiab lub zog, ua kom yooj yim txij nkawm thiab txhim kho, thiab muaj peev xwm xa TDM, IP cov ntaub ntawv. thiab yees duab ib txhij Lub peev xwm ntawm kev tshaj tawm cov kev pabcuam, uas TDM thiab IP cov ntaub ntawv raug xa mus rau hauv hom IEEE802.3 Ethernet, ntxiv los ntawm cov cab kuj-qib network tswj system, txaus los xyuas kom meej qhov kev sib kis tau zoo, thiab kev tshaj tawm video tuaj yeem pom tau los ntawm siv lub wavelength thib peb (feem ntau yog 1550nm) Kev lag luam kis.
Cov cuab yeej siv kho qhov muag fiber ntau yog qhov kev daws teeb meem uas siv tag nrho lossis ib feem ntawm cov khoom siv kho qhov muag hauv kev nkag mus rau hauv lub network los tsim ib qho kev siv hluav taws xob kho qhov muag (FITL), lossis optical fiber nkag network (OAN), kom ua tiav broadband.
Raws li qhov chaw ntawm lubONU, fiber ntau nkag network tau muab faib ua fiber ntau rau lub desktop (FTTD), fiber ntau rau lub tsev (FTTH), fiber ntau rau curb (FTTC), fiber ntau rau lub tsev (FTTB), fiber ntau rau lub chaw ua haujlwm (FTTO), fiber ntau rau lub tsev hauv pem teb (FTTF), fiber ntau rau ntawm tes (FTTZ) thiab lwm yam. Ntawm lawv, FTTH yuav yog daim ntawv kawg ntawm kev nthuav dav dav dav hauv network yav tom ntej. FTTH hais txog kev teeb tsa ntawm qhov chaw kho qhov muag (ONUs) ntawm cov neeg siv nyob hauv tsev lossis cov neeg siv khoom. Nws yog hom optical nkag network ze tshaj rau cov neeg siv hauv FTTx series tshwj tsis yog FTTD.
Cov ntsiab lus yuav tsum tau txiav txim siab hauv kev txhim kho FTTH
Txawm hais tias FTTH yog technically paub tab thiab ua tau, thiab tus nqi pheej yig pheej yig, tseem muaj ntau qhov kev sib tw kom paub txog cov ntawv thov loj ntawm FTTH hauv kuv lub tebchaws.
Nqe teeb meem
Tam sim no, ntau dua 97% ntawm FTTH nkag mus rau hauv lub ntiaj teb tsuas yog muab kev pabcuam hauv Is Taws Nem, vim tias tus nqi ntawm kev muab cov xov tooj ruaj khov los ntawm FTTH ntau dua li tus nqi ntawm cov cuab yeej siv xov tooj uas twb muaj lawm, thiab kev siv fiber ntau xa mus. cov xov tooj niaj hnub tseem muaj teeb meem hauv xov tooj hluav taws xob. Niaj hnub no, cov xov tooj tooj liab tseem nyob hauv txoj haujlwm tseem ceeb. siv ADSL thev naus laus zis ua rau kev tsim kho ntawm qhov project yooj yim, pheej yig, thiab tuaj yeem ua tau raws li cov kev xav tau ntawm kev lag luam tam sim no. Nws yog tus neeg sib tw tseem ceeb ntawm FTTH nyob rau theem no.
Txoj cai xwm txheej
Tseem muaj kev cuam tshuam kev lag luam hauv kev nrhiav FTTH kev pabcuam tag nrho hauv kuv lub tebchaws, uas yog, cov neeg siv xov tooj tsis raug tso cai ua haujlwm CATV cov kev pabcuam, ntawm qhov tsis sib xws, CATV cov tswv lag luam tsis raug tso cai ua cov kev pabcuam hauv xovtooj (xws li xov tooj), thiab qhov xwm txheej no tsis tuaj yeem hloov mus ntev rau yav tom ntej Yog li ntawd, ib tus neeg teb xov tooj tsis tuaj yeem muab kev pabcuam triple play ntawm FTTH nkag network.
ONUcompatibility thiab interoperability
Lub compatibility ntawmONUplays lub luag haujlwm txiav txim siab hauv kev txhim kho thiab txhim kho tag nrho FTTH kev lag luam saw. FTTH nplai daim ntawv thov thiab kev txhawb nqa tseem yuav tsum tau txhim kho cov qauv kev lag luam sai li sai tau. Cov tuam txhab tsim khoom yuav tsum koom tes nrog cov koom haum tsim qauv, cov neeg ua haujlwm, cov tuam txhab tsim khoom thiab cov chaw tsim khoom kom tsom mus rau 6 yam xws li cov txheej txheem kev ua haujlwm, FTTH cov qauv kev ua haujlwm, FTTH kho qhov muag cable cov qauv, FTTH engineering txhawb cov cuab yeej siv qauv, FTTH engineering siv cov qauv thiab FTTH xeem. qauv. Ntawm qhov tod tes, ua tiav tsim FTTH kev lag luam cov qauv kev lag luam thiab cov lus qhia tshwj xeeb los coj FTTH daim ntawv thov.
Kev lag luam tshwj xeeb ntim
Tsis muaj daim ntawv thov yog qhov tseem ceeb cuam tshuam rau kev txhim kho ntxiv ntawm FTTH. Yog tias koj tsuas yog siv Internet, 1M ceev ADSL yuav txaus. Txawm li cas los xij, thaum qhov kev thov rau cov kev pabcuam nce ntxiv, xws li TV digital, VOD, kev pabcuam video broadband, thiab videophones zoo dua, kev yuav khoom hauv online, kev pabcuam khomob hauv online, thiab lwm yam, 1M bandwidth yuav tsis tuaj yeem txhawb nqa nws, thiab DSL. yuav tsis muaj peev xwm ua tau li ntawd. , FTTH muaj nws qhov chaw. Yog li ntawd, txoj kev loj hlob ntawm cov kev pab cuam broadband yog ib qho tseem ceeb tsav tsheb rau txoj kev loj hlob ntawm FTTH.
Kev siv theem ntawm kev pabcuam xov tooj hauv kuv lub tebchaws feem ntau qis. Tam sim no, muaj tsawg tus neeg siv FTTH kev lag luam (yuav luag xoom), thiab FTTH nce qib tseem nyob hauv nws cov me nyuam mos. Vim li no, xaiv FTTH thev naus laus zis uas haum rau peb lub teb chaws cov xwm txheej tseem ceeb heev los txhawb kev nrov ntawm FTTH hauv peb lub tebchaws. Nrog rau kev nthuav dav ntawm daim ntawv teev npe, tus nqi ntawm FTTH cov cuab yeej muaj chav zoo rau kev txo qis. Yav tom ntej, kev lag luam broadband yuav koom nrog ADSL, FTTB + LAN, thiab FTTH hauv ib lub sijhawm. ADSL tseem yuav yog lub ntsiab lus tseem ceeb hauv lub sijhawm luv luv. DSL thiab FTTH yuav txhim kho ua ke. Thaum tus nqi ntawm FTTH cov cuab yeej tau maj mam txo mus rau DSL vim qhov nce hauv kev tsim ntim Lub FTTH kev ua lag luam muaj peev xwm yuav nce ntxiv thaum qib siab dua.