USB, luv rau Universal Serial Bus, yog hom qauv kev sib txuas rau ntau yam khoom siv. Feem ntau, USB hais txog hom cables thiab connectors siv los txuas cov ntau hom khoom siv sab nraud rau cov computers.
YUSB yog dab tsi?
Tus qauv tsheb npav Universal Serial tau ua tiav zoo heev. USB ports thiab cables yog siv los txuas cov khoom siv xws li tshuab luam ntawv, scanners, keyboards, nas, flash drives, sab nraud hard drives, joysticks, koob yees duab, saib, thiab ntau dua rau cov computers ntawm txhua yam, suav nrog desktops, ntsiav tshuaj, laptops, netbooks, thiab lwm yam..
Qhov tseeb, USB tau dhau los ua ntau yam uas koj yuav pom qhov kev sib txuas muaj nyob ntawm yuav luag txhua lub khoos phis tawj zoo li lub tshuab ua yeeb yaj kiab, cov khoom siv suab / pom hauv tsev, thiab txawm nyob hauv ntau lub tsheb.
Ua ntej USB, ntau ntawm cov khoom siv yuav txuas rau lub khoos phis tawj hla cov chaw nres nkoj sib txuas thiab sib txuas, thiab lwm tus nyiam PS / 2.
Ntau yam khoom siv nqa tau yooj yim, xws li smartphones, eBook nyeem ntawv, thiab cov ntsiav tshuaj me, siv USB feem ntau rau kev them nyiaj. Kev them nyiaj USB tau dhau los ua ntau yam uas tam sim no yooj yim los nrhiav cov hluav taws xob hloov pauv ntawm cov khw muag khoom txhim kho hauv tsev nrog USB cov chaw nres nkoj ua hauv, tsis pom qhov xav tau rau USB fais fab adapter.
USB Versions
Muaj ntau tus qauv USB loj, USB4 yog qhov tshiab tshaj plaws:
- USB4: Raws li Thunderbolt 3 specification, USB4 txhawb 40 Gbps (40, 960 Mbps).
- USB 3.2 Gen 2x2: Kuj tseem hu ua USB 3.2, cov khoom siv ua raws tuaj yeem hloov cov ntaub ntawv ntawm 20 Gbps (20, 480 Mbps), hu ua Superspeed + USB dual-txoj kab.
- USB 3.2 Gen 2: Yav dhau los hu ua USB 3.1, cov khoom siv ua raws tuaj yeem hloov cov ntaub ntawv ntawm 10 Gbps (10, 240 Mbps), hu ua Superspeed+.
- USB 3.2 Gen 1: Yav dhau los hu ua USB 3.0, cov khoom siv ua raws cai tuaj yeem ncav cuag qhov siab tshaj plaws ntawm 5 Gbps (5, 120 Mbps), hu ua SuperSpeed USB.
- USB 2.0: USB 2.0 raws li cov khoom siv tuaj yeem ncav cuag qhov siab tshaj plaws ntawm 480 Mbps, hu ua High-Speed USB.
- USB 1.1: USB 1.1 li tuaj yeem ncav cuag qhov siab tshaj plaws ntawm 12 Mbps, hu ua Full Speed USB.
Feem ntau cov khoom siv USB thiab cables niaj hnub no ua raws li USB 2.0, thiab ntau tus lej rau USB 3.0.
Qhov chaw ntawm USB-kev sib txuas, suav nrog tus tswv tsev (zoo li lub khoos phis tawj), cable, thiab lub cuab yeej, tuaj yeem txhawb nqa cov qauv USB sib txawv kom ntev li ntev tau lawv lub cev sib xws. Txawm li cas los xij, txhua qhov chaw yuav tsum txhawb nqa tib tus qauv yog tias koj xav kom nws ua tiav cov ntaub ntawv siab tshaj plaws tau.
Txhua Yam Koj Yuav Tsum Paub Txog USB Ports thiab Cables
USB Connectors
Ib tus lej sib txawv USB txuas muaj nyob, txhua yam peb piav qhia hauv qab no.
Tus txiv neej txuas ntawm cable lossis flash drive feem ntau hu ua lub ntsaws. Tus poj niam txuas ntawm lub cuab yeej, khoos phis tawj, lossis txuas txuas txuas yog feem ntau hu ua lub txais.
- USB Hom C: Feem ntau hu ua USB-C, cov plugs thiab cov khoom siv no yog cov duab plaub nrog plaub lub kaum sab xis. Tsuas yog USB 3.1 Hom C plugs thiab receptacles (thiab yog li cables) muaj nyob, tab sis adapters rau rov qab compatibility nrog USB 3.0 thiab 2.0 connectors muaj. Qhov tseeb USB connector no thaum kawg daws qhov teeb meem ntawm sab twg mus. Nws cov qauv tsim symmetrical tso cai rau nws tso rau hauv qhov chaw txais khoom hauv ob qho tib si, yog li koj tsis tas yuav rov sim dua (ib qho ntawm qhov loj tshaj plaws peev xwm txog USB plugs ua ntej). Cov no tau siv dav hauv smartphones thiab lwm yam khoom siv.
- USB Hom A: Lub npe hu ua USB Standard-A, cov plugs thiab receptacles no yog cov duab plaub thiab yog cov feem ntau pom USB connectors. USB 1.1 Hom A, USB 2.0 Hom A thiab USB 3.0 Hom A plugs thiab receptacles yog lub cev sib xws.
- USB Hom B: Lub npe hu ua USB Standard-B, cov plugs thiab receptacles yog square zoo li tus nrog rau ib tug ntxiv notch nyob rau sab saum toj, feem ntau pom ntawm USB 3.0 hom B connectors. USB 1.1 Hom B thiab USB 2.0 Hom B plugs yog lub cev sib xws nrog USB 3.0 Hom B receptacles tab sis USB 3.0 Hom B plugs tsis tau tshaj USB 2.0 Hom B lossis USB 1.1 Hom B receptacles.
- A USB Powered-B txuas kuj tau teev tseg hauv USB 3.0 tus qauv. Qhov chaw txais khoom no yog lub cev sib xws nrog USB 1.1 thiab USB 2.0 Standard-B plugs, thiab tau kawg, USB 3.0 Standard-B thiab Powered-B plugs zoo li.
- USB Micro-A: USB 3.0 Micro-A plugs zoo li ob lub duab plaub sib txawv sib xyaw ua ke, ib qho ntev dua li lwm qhov. USB 3.0 Micro-A plugs tsuas yog siv tau nrog USB 3.0 Micro-AB receptacles.
- USB 2.0 Micro-A plugs yog qhov me me thiab cov duab plaub, zoo li ntau txoj hauv kev shrunken USB Hom A ntsaws. USB Micro-A plugs yog lub cev sib xws nrog USB 2.0 thiab USB 3.0 Micro-AB receptacles.
- USB Micro-B: USB 3.0 Micro-B plugs zoo li yuav luag zoo ib yam rau USB 3.0 Micro-A plugs uas lawv tshwm sim li ob tus neeg, tab sis txuas nrog, ntsaws. USB 3.0 Micro-B plugs tau tshaj USB 3.0 Micro-B receptacles thiab USB 3.0 Micro-AB receptacles.
- USB 2.0 Micro-B plugs yog me me thiab cov duab plaub, tab sis ob lub ces kaum ntawm ib sab ntev yog beveled. USB Micro-B plugs yog lub cev sib xws nrog USB 2.0 Micro-B thiab Micro-AB receptacles, nrog rau USB 3.0 Micro-B thiab Micro-AB receptacles.
- USB Mini-A: USB 2.0 Mini-A ntsaws yog duab plaub, tab sis ib sab yog sib npaug. USB Mini-A plugs tsuas yog siv tau nrog USB Mini-AB receptacles. Tsis muaj USB 3.0 Mini-A connector.
- USB Mini-B: USB 2.0 Mini-B ntsaws yog duab plaub nrog ib qho me me ntawm ob sab, yuav luag zoo li lub khob cij stretched thaum saib nws lub taub hau. USB Mini-B plugs yog lub cev sib xws nrog ob qho tib si USB 2.0 Mini-B thiab Mini-AB receptacles. Tsis muaj USB 3.0 Mini-B connector.
Yuav kom meej, tsis muaj USB Micro-A lossis USB Mini-A cov khoom siv, tsuas yog USB Micro-A plugs thiab USB Mini-A plugs. Cov "A" plugs haum rau "AB" receptacles.
YUSB Troubleshooting
Kev siv lub cuab yeej USB feem ntau yog qhov yooj yim zoo nkauj: tsuas yog ntsaws rau hauv. Hmoov tsis zoo, nws tsis yog ib txwm yooj yim.
Qee hom-tshiab USB-txuas kho vajtse xav tau cov cuab yeej tshwj xeeb tsav tsheb kom ua haujlwm tau zoo. Lwm lub sij hawm, USB ntaus ntawv uas tau ua haujlwm ib txwm ua tau ntau xyoo tuaj yeem nres ua haujlwm yam tsis muaj laj thawj vim li cas.
Ua raws li phau ntawv qhia no yuav ua li cas thaum koj lub USB chaw nres nkoj tsis ua haujlwm, lossis cov lus qhia kho-nws yuav ua li cas Thaum USB Devices tsis pom zoo hauv Windows, yog tias ib qho ntawm cov no yog qhov teeb meem koj tab tom ntsib.
Feem ntau, txawm li cas los xij, cov lus qhia daws teeb meem zoo tshaj plaws yuav yog tshwj xeeb rau txhua yam khoom koj siv. Siv qhov tshawb nrhiav nyob rau sab saum toj ntawm nplooj ntawv no txhawm rau nrhiav kev pab ntxiv, txawm tias nws yog rau koj lub xov tooj, streaming stick, lossis lwm yam khoom siv USB.
FAQ
Leej twg tsim tus qauv USB?
USB tau tsim kev sib koom tes ntawm Compaq, DEC, IBM, Intel, Microsoft, NEC, thiab Nortel. Tus qauv USB yog tswj hwm los ntawm USB Implementers Forum (USB-IF).
Tus qauv USB tam sim no yog dab tsi?
Txij li xyoo 2019, USB4 tau yog tus qauv USB tam sim no. Tsuas yog USB-C connectors (tshwj tsis yog ib txwm mini / micro-USB) tuaj yeem txhawb USB4.
2.0 thiab 3.0 txhais li cas ntawm lub flash drive?
Yog tias koj pom tus lej zoo li 2.0 lossis 3.0 ntawm koj lub flash drive, nws yog hais txog USB version uas lub cuab yeej txhawb nqa. Flash drives uas txhawb USB 3.0 tuaj yeem hloov cov ntaub ntawv sai dua me ntsis, tab sis nws tsis muaj teeb meem ntau dhau vim tias cov chaw nres nkoj feem ntau rov qab sib xws.
Dab tsi yog qhov zoo ntawm USB dhau EIA-232F?
EIA-232F yog tus qauv kev sib txuas qub uas tau hloov los ntawm USB. Tus qauv USB tau nrawm dua thiab siv lub zog tsawg dua, ua kom nws siv tau ntau dua.
