Dab tsi yog Fiber rau Lub Tsev?
FTTH sawv cev rau Fiber rau Lub Tsev, xa mus rau ib hom kev siv fiber ntau daim ntawv thov qhov twg ONU raug teeb tsa ntawm qhov chaw ntawm cov neeg siv hauv tsev lossis kev lag luam.
FTTH tsis tsuas yog muab ntau dua bandwidth tab sis kuj nce pob tshab hauv cov ntaub ntawv hom, tus nqi, wavelengths, thiab cov txheej txheem. Nws so kom txaus rau tej yam kev mob thiab lub hwj chim mov thaum uas yooj yim txij nkawm thiab installation.
FTTH muab kev pabcuam dab tsi?
FTTH yog ib qho kev qhia puv -kev pabcuam kev daws teebmeem uas ua rau cov neeg siv khoom txaus siab rau ntau yam kev pabcuam. Cov kev pabcuam tseem ceeb muaj xws li video, cov ntaub ntawv, tshaj tawm, thiab multimedia.
Dab tsi technologies siv FTTH?
Tam sim no, GPON thiab EPON yog thawj PON thev naus laus zis. GPON muaj ntau yam zoo tshaj - pabcuam kev pabcuam thiab kev sib kis tau zoo. Yog li ntawd, GPON raug nqi ntau dua li EPON.
FTTH ua haujlwm li cas?
FTTH kev txhim kho siv ob txoj hauv kev: Active Optical Networks (AON) thiab Passive Optical Networks (PON).
AONs muab kev sib kis ntev dua tab sis xav tau cov cuab yeej tshwj xeeb, ua rau lawv tsis haum rau thaj chaw muaj neeg coob. Tsis tas li ntawd, cov nqi chaw nres nkoj kuj tseem siab. Cov cuab yeej siv qhov chaw teeb tsa raug txwv, thiab kev cuam tshuam rau electromagnetic cuam tshuam ua rau lub network tsis ua haujlwm thiab cov nqi kho.
Raws li ib tug ntshiab optical nruab nrab network, PON inherently resists electromagnetic cuam tshuam. Qhov no ua rau tsawg dua kev nkag mus rau hauv lub network tsis ua haujlwm, muaj kev ntseeg siab dua, thiab cov nqi kho mob qis dua. Tsis tas li ntawd, PON-raws li FTTH txhawb ntau daim ntawv thov thiab ntsuas qhov zoo rau cov neeg siv loj.
Yog li ntawd, kev nkag mus rau lub network tsis ua hauj lwm cov ntsiab lus raug txo, kev ntseeg siab ntawm lub cev yog siab, thiab cov nqi kho mob tsawg. Ib txhij, FTTH siv passive optical networks muaj kev pom zoo heev, txhawb nqa ntau daim ntawv thov tus qauv thiab ua kom zoo dua qub - cov neeg siv kev loj hlob. Passive optical networks tau maj mam dhau los ua cov kev taw qhia tseem ceeb rau FTTH.
Dab tsi yog cov cuab yeej siv rau FTTH?
Cov khoom siv tseem ceeb hauv FTTH suav nrog Optical Line Terminal (OLT) thiab Optical Network Unit (ONU). Tus qub raug xa mus rau ntawm ISP lub chaw ua haujlwm, thaum lub sijhawm kawg tau muab tso rau ntawm qhov kawg - neeg siv qhov chaw. FTTH koom nrog ntau qhov kev lag luam xws li sab hauv fiber ntau optics, engineering, thiab kev siv, tuav qhov tseem ceeb hauv kev sib txuas lus thiab cov ntaub ntawv.