Ib qho uplink hauv kev sib txuas hauv computer yog hais txog kev sib txuas hauv xov tooj lossis wireless los ntawm thaj chaw hauv cheeb tsam (LAN) mus rau thaj chaw dav dav (WAN). Qhov chaw nres nkoj uplink ntawm lub tsev router yog ib hom tshwj xeeb ntawm qhov chaw nres nkoj uas siv los txuas rau lub broadband modem (uas yog LAN), thiab thaum kawg rau hauv internet (uas yog WAN).
Uplink vs. Downlink
A downlink yog ib qho kev sib txuas ua rau qhov sib txawv ntawm qhov uplink, xws li los ntawm satellite mus rau hauv av los yog los ntawm ib lub network sab nraud mus rau hauv lub zos network. Kev rub tawm hauv Is Taws Nem, piv txwv li, taug kev hla ib qho downlink rau lub rub tawm, thaum internet uploads hla kev sib txuas ntawm uplink.
Uplinks feem ntau yog siv hauv kev sib txuas lus satellite los tshaj tawm xov tooj cua satellite thiab TV. Broadcasters xa cov teeb liab pub los ntawm cov chaw nres tsheb hauv av mus rau orbiting satellite, txheej txheem hu ua satellite uplink.
Cellular thiab lwm cov chaw muab kev pabcuam wireless broadband qee zaum xa mus rau txoj kev sib txuas lus ntawm lub network raws li kev sib kis. Cov uplinks no tuaj yeem nqa cov ntawv xov xwm, xa cov ntaub ntawv hauv internet, thiab lwm yam ntaub ntawv xa los ntawm tus neeg muab kev pabcuam network.
Uplink Ports ntawm Computer Networks
Qee lub computer network hardware feature uplink ports tsim los ntsaws rau hauv network cables. Cov chaw nres nkoj no tso cai rau lub network sib txuas lus nrog lwm lub network sab nraud. Uplink ports ntawm lub tsev routers, piv txwv li, tso cai rau kev sib txuas rau broadband modems thiab internet.
Ethernet hubs, keyboards, thiab routers ib txwm xaiv ib qho chaw nres nkoj Ethernet ua qhov txuas txuas. Qhov chaw nres nkoj ntawd raug cim rau ntawm chav tsev los ntawm lub npe lossis xim. Hauv tsev broadband routers feem ntau sau qhov chaw nres nkoj no li WAN lossis "Internet" tsis yog uplink, tab sis lub tswv yim thiab kev ua haujlwm zoo ib yam.
Thaum siv qhov kev sib txuas Uplink
Uplink txuas tuaj yeem siv rau:
- Txuas txuas lub broadband modem rau lub tsev router rau kev siv internet.
- Txuas ib lub cuab yeej uplink (ib lub router, hloov, lossis hub) mus rau lwm qhov. Txuas qhov chaw nres nkoj uplink ntawm ib qho kev hloov, piv txwv li, rau hauv qhov chaw nres nkoj txheem ntawm lwm qhov hloov mus nthuav dav lub network loj.
Thaum Tsis Siv Kev Txuas Txuas Txuas
Hloov pauv, kev sib txuas uplink feem ntau yuav tsum tsis txhob siv rau:
- Txuas ob qhov chaw nres nkoj uplink rau ib leeg.
- Txuas lub computer mus rau qhov chaw nres nkoj uplink.
Kev Sib Txuas Sib Txuas
Hauv cov khoos phis tawj niaj hnub no, kev sib txuas yog ob txoj kev. Rau kev sib txuas rau qhov chaw nres nkoj uplink, tib lub cable lossis wireless txuas tuaj yeem hloov cov ntaub ntawv los ntawm thiab mus rau cov khoom siv ntawm qhov kawg, tsis yog nce lossis nqis xwb. Cov ntsiab lus uplink thiab downlink ntawm no siv rau qhov kawg ntawm kev sib txuas pib hloov cov ntaub ntawv.
Cov kws tshaj lij kev sib koom tes yuav taw qhia tias Ethernet crossover cable tuaj yeem siv los txuas lub khoos phis tawj mus rau qhov chaw nres nkoj uplink lossis txuas ob lub chaw nres nkoj uplink rau ib leeg. Thaum technically raug, qhov muaj txiaj ntsig ntawm hom kev sib txuas no raug txwv.
Dual-Purpose thiab Shared Uplink Ports
Cov khoom siv kho vajtse ib txwm muaj ntawm qhov chaw nres nkoj uplink txhawb nqa cov khoom siv sib txuas nkaus xwb. Txawm li cas los xij, ntau lub tsev niaj hnub broadband routers muab qhov chaw nres nkoj ob lub hom phiaj xwb, ib qho uas ua haujlwm xws li uplink lossis raws li qhov chaw nres nkoj tus qauv nyob ntawm seb hom khoom txuas nrog nws.
Ua ntej lub hom phiaj ob qhov chaw nres nkoj tau nrov, qee cov khoom siv network qub tau teeb tsa lub chaw nres nkoj tus qauv ntawm ib sab ntawm uplink thiab txuas ob qho ua ke ua ib khub. Cov khoom siv logic ntawm cov khoom siv no txhawb kev sib txuas mus rau qhov chaw nres nkoj uplink lossis mus rau tus qauv sib koom chaw nres nkoj, tab sis tsis yog ob qho tib si. Txuas cov khoom siv rau ob qhov chaw nres nkoj ntawm ib qho chaw nres nkoj sib koom ua kom lub tsev tsis ua haujlwm zoo.
FAQ
Vim li cas thiaj yuav tsum muaj satellite muaj qhov sib txawv uplink thiab downlink zaus?
Satellites kis ntawm ib zaus thiab tau txais ntawm qhov sib txawv kom tsis txhob cuam tshuam ntawm cov teeb liab. Tsis tas li ntawd, lub uplink yuav tsum muaj ntau zaus tshaj qhov downlink zaus kom nkag mus rau hauv huab cua.
Dab tsi yog uplink thiab downlink hauv kev sib txuas lus txawb?
Ib qho uplink yog lub teeb liab tawm ntawm koj lub xov tooj ntawm tes thiab xa mus rau lub xov tooj ntawm tes. Lub downlink yog lub teeb liab xa mus rau koj lub xov tooj ntawm tes los ntawm lub xov tooj ntawm tes.
