Fiber internet yog dab tsi?
Fiber-optic internet, feem ntau hu ua fiber ntau internet los yog yooj yim "fiber," yog ib tug broadband kev twb kev txuas uas muaj peev xwm ncav cuag speeds txog li 10 Gigabits ib ob (Gbps) nyob rau hauv tej qhov chaw.
Lub tshuab siv fiber ntau-optic cable, uas zoo kawg nkaus tuaj yeem xa cov ntaub ntawv sai li ntawm 70% qhov ceev ntawm lub teeb. Tsis tas li ntawd, fiber-optic cables tsis muaj kev cuam tshuam rau huab cua hnyav li lwm hom cables. Cov kab hluav taws xob ruaj khov no muaj qhov hluav taws xob tsawg tsawg piv rau lwm tus. Lawv kuj tiv thaiv hluav taws xob cuam tshuam.
Fiber yog qhov zoo tagnrho rau tsev lossis lag luam nrog ntau tus neeg siv txuas ob peb lub cuab yeej ib zaug. CenturyLink Fiber kev pab cuam tso cai rau koj mus:
- Upload thiab download tau cov ntaub ntawv sai sai
- Txaus siab rau kev ua si online tsis pub dawb thiab sib tham video
- Thaub koj lub hard drive tag nrho rau hauv huab, suav nrog cov duab loj thiab cov yeeb yaj kiab, hauv feeb tsis yog teev
- Rub tawm 2- teev HD yeeb yaj kiab hauv vib nas this, piv rau tos 30 feeb lossis ntau dua 20 Mbps DSL internet txuas
Kev tshaj tawm rau DWDM Solutions ntawm fiber ntau cable internet:
pls xav tias dawb txuas nrog kuv, 7x24Hours online txhawb! ! !
Fiber-optic internet ua haujlwm li cas?
Fiber-optic internet yog ib tug complex technology uas tso cai rau cov kis ntawm cov ntaub ntawv nyob rau hauv daim ntawv ntawm lub teeb es tsis yog hluav taws xob. Muaj ntau daim ntawv uas ua rau cov thev naus laus zis no, tab sis ob lub ntsiab lus tseem ceeb yog cov khoom siv kho qhov muag thiab lub npe hu ua "mile kawg" ntawm fiber-optic network.
Optical fibers
Optical fibers yog me me - txog 125 microns inch, los yog me ntsis loj dua tib neeg cov plaub hau. Ntau ntawm cov fibers no tau muab khi ua ke los tsim cov cables (tsis yog yuav tsum tsis meej pem nrog coaxial cables, uas yog ua los ntawm tooj liab). Cov fibers kho qhov muag nqa pulses ntawm laser lossis LED teeb hauv kab, xa cov ntaub ntawv hauv "binary" daim ntawv, zoo ib yam li 0s thiab 1s siv hauv electronics.
Lub mais kawg
Thaum cov pulses super-ceev ceev ntawm lub teeb mus txog lawv lub hom phiaj, lawv tau hloov mus rau hauv hluav taws xob tso zis uas koj cov cuab yeej tuaj yeem nkag siab thiab siv tau. Qhov no yog ua los ntawm cov khoom siv tshwj xeeb hu ua optical network davhlau ya nyob twg, uas tom qab ntawd xa cov teeb liab los ntawm kev sib txuas Ethernet rau cov neeg siv kawg. Lub stretch ntawm lub ntsiab fiber ntau network kab thiab cov neeg siv kawg yog hu ua " mais kawg" (tab sis nws yog feem ntau luv dua li ib mais).
"Ntshiab fiber ntau" yog hais txog kev sib txuas fiber ntau uas khiav txhua txoj hauv kev mus rau tus neeg siv kawg hauv tsev, kev lag luam lossis lub khoos phis tawj desktop. Qhov no yog qhov ceev tshaj plaws thiab kim tshaj plaws "mile kawg" kev xaiv, raws li nws nqa tag nrho cov ceev thiab kev ntseeg siab ntawm fiber ncaj ncaj rau cov neeg siv khoom.
Raws li lwm txoj hauv kev, tooj liab cables feem ntau yog siv los nqa cov fiber ntau txuas los ntawm lub davhlau ya nyob twg hu ua "txoj kev txee" mus rau tag nrho cov tsev nyob, tsev kawm ntawv lossis tsev nyob. Qhov kev xaiv no tsis tshua kim, tab sis me me ntawm fiber ntau ceev tau poob hauv " mais kawg."
2-feeb keeb kwm ntawm fiber ntau optics
Txawm hais tias muaj coob tus neeg xav txog fiber ntau optic raws li cov cuab yeej tshiab, nws yeej muaj hnub rov qab mus rau xyoo 1970, thaum nws thawj zaug siv hauv kev sib txuas lus.
Xyoo 1988, fiber-optic cables tau muab tso rau hauv qab dej hiav txwv, txuas US mus rau Tebchaws Europe. Tau ntau xyoo, ntau thiab ntau cov kab tau muab tso rau hauv qab hiav txwv, yog li niaj hnub no lub network loj ntawm fiber-optic cables nthuav dav thoob plaws ntiaj teb. Kev loj hlob ntawm fiber ntau tes hauj lwm, nrog rau lawv cov peev xwm siab ceev thiab txhim khu kev qha ntawm cov ntaub ntawv, tau tso cai rau kev nce qib hauv kev lag luam hauv xov tooj - qhov tseeb, qee tus hais tias fiber-optic technology yog dab tsi ua rau Hnub Nyoog Cov Ntaub Ntawv tau.
Hauv cov teb chaws tsim kho, cov kab fiber ntau tau hloov cov kab qub tooj liab ntau xyoo dhau los, tsim cov tub ntxhais kawm lossis "cov pob txha" ntawm peb cov kev sib txuas hauv internet tam sim no. Tsuas yog tsis ntev los no nws tau dhau los ua tus nqi zoo rau kev teeb tsa cov kab fiber ntau dua li cov tooj liab. Yog li, raws li thev naus laus zis txuas ntxiv txhim kho, fiber-optic tes hauj lwm tau nthuav dav thoob plaws hauv nroog thiab ncaj qha mus rau tsev.
Yuav ua li cas fiber ntau txawv ntawm lwm hom internet?
Qhov sib txawv tseem ceeb yog tias fiber ntau tsis siv hluav taws xob zoo li lwm hom kev sib txuas hauv internet ua. Nws siv lub teeb, xa los ntawm fiberglass core.
Cov thev naus laus zis hauv Is Taws Nem tau hloov zuj zus mus dhau lub sijhawm, los ntawm kev sib txuas hauv xov tooj mus rau broadband technologies xws li DSL thiab cable.
Dial-up internet
Dial-up, uas tsis tshua muaj ntau tshaj li 20 xyoo dhau los, siv cov xov tooj uas twb muaj lawm, uas feem ntau yog ua los ntawm tooj liab. Dial-up siv lub suab nrov zaus ntawm lub xov tooj, uas yog vim li cas koj hnov ib lub suab nrov thiab suab nrov thaum nws txuas. Thiab, koj siv tsis tau xov tooj thiab internet tib lub sij hawm vim lawv sib koom ib kab.
Qhov nruab nrab ceev ntawm kev sib txuas dial-up yog li 56 Kbps (uas yog hais txog 0.05 Mbps) rau rub tawm thiab rub tawm.
Cable internet
Cable internet siv tib kab (lossis tsawg kawg yog tib hom kab) uas koj cov kev pabcuam cable TV siv, hu ua "coaxial cable."
Kev ceev rau cable internet tuaj yeem sib txawv, nyob qhov twg mus txog 940 Mbps rau rub tawm thiab mus txog 50 Mbps rau uploading, qhov nruab nrab.
Puas yog fiber ntau internet sai dua?
Kev sib txuas hauv internet ceev ceev xa cov ntaub ntawv ntawm qhov sib txawv. Ntxiv nrog rau kev ua kom nrawm dua, fiber ntau tau pom tias muaj kev ntseeg tau ntau dua, ua tsaug rau kev siv hluav taws xob tsawg thiab cuam tshuam hluav taws xob.
CenturyLink Fiber cov kev pabcuam tuaj yeem xa cov kev sib tw rub tawm / rub tawm nrawm txog 940 Megabits ib ob (Mbps) dhau ntawm kev sib txuas ntawm koj lub router.
Hauv kev xav txog kev ceev, koj tsis tuaj yeem tsis quav ntsej qhov cuam tshuam ntawm WiFi. Qhov kev sib txuas txhua hnub uas koj tau ntsib tuaj yeem raug txwv los ntawm kev siv cov thev naus laus zis wireless, uas zoo li poob lub teeb liab lub zog (lub ntsiab lus txo qis bandwidth) piv rau cov kev sib txuas uas nkag mus rau koj lub router.
Dab tsi yog cov txiaj ntsig ntawm fiber ntau internet?
Fiber internet yog ib qho kev xaiv zoo rau cov tsev neeg loj lossis cov lag luam uas ntau tus neeg siv xav tau kwj video, ua si hauv online, thaub qab cov ntaub ntawv, lossis xa thiab txais cov ntaub ntawv loj tib lub sijhawm.
Ib lub tsev lossis kev lag luam uas muaj fiber ntau tuaj yeem xa cov kev paub tshwj xeeb thoob plaws txhua yam khoom siv thiab kev sib txuas hauv Is Taws Nem, los ntawm kev ruaj ntseg hauv tsev mus rau cov ntsuas cua sov, qhov cub, tub yees thiab lwm yam khoom siv.
Nrog ceev ceev, koj kuj tsis tau ntau npaum li buffering nrog on-demand streaming. "Buffering" yog hais txog lub sijhawm thauj khoom uas tshwm sim thaum lub vis dis aus nres thiab yuav tsum tau ntes. Fiber Internet los ntawm CenturyLink, piv txwv li, cia koj rub tawm qhov ntev 4K lossis HD yeeb yaj kiab hauv vib nas this.
Piv txwv li, nws yuav siv sijhawm ntev npaum li cas, qhov nruab nrab, txhawm rau rub tawm cov ntaub ntawv xov xwm loj (6.5 GB) los ntawm hom internet:
Dial-up 11 hnub
DSL 1 - 14 teev
Cable 1 min - 14 teev
Fiber ntau ~ 1 min
Dub fiber ntau yog dab tsi?
Tej zaum koj yuav tau hnov cov lus "tsaus fiber ntau" thiab "lit fiber" thiab xav tias lawv txhais li cas. Zoo, nws yuav ua rau koj xav tsis thoob kom paub tias tus nqi loj tshaj ntawm kev tsim lub network fiber-optic tsis yog lub cable nws tus kheej, tab sis tus nqi ntawm kev khawb hauv av los faus cov cable. Yog li, thaum lawv tau ua tiav qhov kev khawb, ntau lub tuam txhab kev sib txuas lus tau tso cov fiber ntau-optic cables los pab rau kev txhim kho yav tom ntej. "Dark fiber" yog hais txog cov cables uas tseem tsis tau siv, thaum "lit fiber" yog hais txog cov kab uas twb tau txuas nrog (lossis "lit") thiab tau siv los ntawm cov tuam txhab xov tooj los xa cov kev pabcuam hauv internet.
