Nyob rau lub xyoo pua 21st, vim tias kev nplua nuj video thiab duab cov ntsiab lus nyob hauv Is Taws Nem, qhov kev thov rau bandwidth tau loj hlob sai, thiab qhov kev siv xov tooj txuas tam sim no feem ntau suav nrog cov thev naus laus zis xws li XDSL, HFC, FTTX + LAN thiab li rau. Cov khoom siv feem ntau siv hauv XDSL thev naus laus zis yog ADSL, uas siv ib khub ntawm cov xov tooj uas twb muaj lawm los muab kev pab cuam rau cov neeg siv cov asymmetric kis tus nqi ntawm 1.5 Mbps rau 8 Mbps nqes thiab 640 Kbps rau 1 Mbps ntws los.
Txawm li cas los xij, thaum ADSL ntsib cov kev pabcuam dav dav xws li kev kawm deb, kev ua si online, TV xav tau, telemedicine, thiab e-tsoomfwv cov kev pabcuam, nws lub peev xwm tiv taus yog qhov tsawg thiab nws cov kev pabcuam zoo yuav raug txo kom tsawg. HFC siv CableModem rau cov ntaub ntawv xa tawm, tom qab kev sib tw hloov pauv ntawm lub TV tshaj tawm hauv xov tooj cua uas twb muaj lawm, nws tseem yuav siv mus rau hauv tus IP kev pabcuam raws li kev xa xov xwm hauv TV. HFC upstream tuaj yeem muab 40MHz bandwidth, tab sis kev qhia bandwidth kuj nyuaj kom tau raws li kev txhim kho yav tom ntej ntawm ntau ntawm cov kev pab cuam ntws los.
FTTx + LAN nkag mus yog ib txoj hauv kev siv Gigabit Ethernet hloov tshuab, siv cov khoom siv fiber ntau ntxiv ntxiv rau 5 hom xov hlau, thiab siv koos pij tawj LAN nkag mus rau cov neeg siv kawg kom tau txais cov neeg siv cov ntaub ntawv xov xwm siab. Nws tuaj yeem ua kom tau raws li qhov xav tau ntawm cov kev pabcuam multimedia dav dav, Tab sis tsis tuaj yeem tshaj tawm xov tooj cua thiab TV. XDSL, HFC, FTTX + LAN tsis yog qhov kev tau txais qhov kawg. Qhov sib tham sib tham siab pom kev hloov pauv los ntawm HDTV tau ua cov fiber ntau nrog cov bandwidth siab, lub peev xwm loj, poob qis thiab lwm cov yam ntxwv zoo ua cov ntaub ntawv xa mus rau cov neeg siv tsis tau xaiv kev tshaj tawm. FTTH yog qhov kev lees paub txog lub hom phiaj ntev thiab kev daws teeb meem kawg rau kev tsim kho kom nkag mus tau yooj yim. Nws muaj peb lub ntsiab rau FTTH: taw tes-rau-taw qhia cov FTTH, taw-rau-ntau dua EPON FTTH kev daws thiab GPON FTTH daws.
