Kev tshaj tawm hauv TV cable tau yog ib feem ntawm peb lub neej tau ntau xyoo lawm, muab kev lom zem thiab cov ntaub ntawv hauv peb lub tsev. Txawm li cas los xij, nrog rau kev nce qib sai ntawm thev naus laus zis, kev tshaj tawm hauv TV cable ib txwm raug rhuav tshem, thiab lub sijhawm tshiab tab tom los txog. Yav tom ntej ntawm kev tshaj tawm hauv TV cable yog nyob rau hauv kev koom ua ke ntawm CATV ONU (Cable TV Optical Network Unit) thev naus laus zis.
CATV ONUs, tseem hu ua fiber-to-the-home (FTTH) cov khoom siv, tab tom ua lub luag haujlwm tseem ceeb hauv kev hloov pauv txoj kev xa xov tooj cua cable TV. Cov thev naus laus zis coj kev siv internet ceev ceev, kev tshaj tawm digital thiab kev pabcuam suab ncaj qha mus rau tus neeg siv lub tsev los ntawm cov xov hlau fiber optic. Nws hloov cov xov hlau coaxial ib txwm muaj, muab ntau yam zoo, thiab tau tsim txoj hauv kev rau kev hloov pauv hauv kev lag luam cable TV.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawmCATV ONUthev naus laus zis yog qhov bandwidth zoo kawg nkaus uas nws muab. Cov xov hlau fiber optic muaj peev xwm zoo kawg nkaus thiab tuaj yeem xa cov ntaub ntawv ntau ntawm qhov ceev ceev zoo kawg nkaus. Los ntawm kev koom ua ke CATV ONUs, cov neeg muab kev pabcuam TV cable tuaj yeem muab UHD channels, cov kev pabcuam streaming raws li qhov xav tau, thiab cov yam ntxwv sib tham uas tsis tau xav txog yav dhau los. Kev nce qib hauv bandwidth ua kom muaj kev paub zoo thiab zoo dua rau cov neeg siv khoom.
Ntxiv mus, CATV ONU thev naus laus zis tsis yog tsuas yog ua kom zoo thiab ntau ntawm cov channel muaj, tab sis kuj txhawb nqa kev hloov kho thiab kev xaiv tus kheej. Los ntawm kev koom ua ke ntawm kev sib txuas hauv Is Taws Nem, cov neeg siv khoom tuaj yeem nkag mus rau ntau yam kev siv, suav nrog cov platform video-on-demand, cov kev pabcuam streaming thiab cov ntsiab lus sib tham. Qhov no tso cai rau cov neeg siv xaiv yam lawv xav saib thiab thaum twg, hloov pauv tag nrho cov qauv cable TV ib txwm muaj.
Lwm qhov zoo ntawm CATV ONU thev naus laus zis yog nws lub peev xwm rau kev txuag nqi. Cov xov hlau fiber optic muaj kev ntseeg siab dua thiab xav tau kev saib xyuas tsawg dua li cov xov hlau coaxial ib txwm muaj. Kev ua kom ruaj khov ntawm cov khoom siv hauv paus txo qhov xav tau kev kho thiab hloov pauv ntau zaus, txo cov nqi rau cov neeg muab kev pabcuam cable. Yog li ntawd, cov kev txuag nyiaj no tuaj yeem xa mus rau qhov txiaj ntsig ntawm cov neeg siv khoom, ua rau cov pob khoom cable TV pheej yig dua.
Ntxiv mus, CATV ONU thev naus laus zis muab lub sijhawm rau cov neeg muab kev pabcuam TV cable los muab cov kev pabcuam sib xyaw ua ke. Los ntawm kev koom ua ke ntawm cov kev pabcuam suab thiab Is Taws Nem ceev ceev, cov neeg siv khoom tuaj yeem ua tau raws li lawv cov kev xav tau kev sib txuas lus thiab kev lom zem los ntawm ib tus neeg muab kev pabcuam. Qhov kev sib koom ua ke ntawm cov kev pabcuam no ua rau cov neeg siv khoom yooj yim dua thiab tshem tawm qhov teeb meem ntawm kev tswj hwm ntau cov npe.
Ntxiv mus, qhov kev nthuav dav thiab kev ywj pheej ntawm CATV ONU thev naus laus zis ua rau nws muaj peev xwm yav tom ntej. Raws li thev naus laus zis txuas ntxiv mus, kev koom ua ke ntawm cov yam ntxwv tshiab thiab cov kev pabcuam ua rau muaj kev sib txuas nrog cov tes hauj lwm fiber optic. Cov neeg muab kev pabcuam TV cable tuaj yeem hloov kho tau yooj yim rau cov kev xav tau thiab kev nyiam ntawm cov neeg siv khoom, kom ntseeg tau tias lawv tseem sib tw thiab nyob rau pem hauv ntej ntawm kev lag luam.
Hauv kev xaus lus, yav tom ntej ntawm cable TV nyob rau hauv kev koom ua ke ntawmCATV ONUthev naus laus zis. Qhov kev daws teeb meem tshiab no hloov pauv tus qauv TV cable ib txwm muaj, muab cov bandwidth zoo dua, kev xaiv kho kom haum thiab kev txuag nqi. Los ntawm kev siv cov thev naus laus zis no, cov neeg muab kev pabcuam TV cable tuaj yeem ua tau raws li cov neeg siv khoom xav tau cov ntsiab lus zoo, kev paub tus kheej thiab cov kev pabcuam sib xyaw. Lub hnub nyoog ntawm CATV ONU thev naus laus zis tau los txog, coj mus rau hauv lub sijhawm tshiab ntawm cable TV, coj lub neej yav tom ntej ci ntsa iab thiab zoo siab dua rau cov neeg saib thoob plaws ntiaj teb.
Lub sijhawm tshaj tawm: Cuaj hlis-07-2023