USB 2.0 Paub meej & Cov ntaub ntawv Connector
USB 2.0 yog ib qho qauv ntawm Serial Bus (USB). Yuav luag tag nrho cov khoom siv nrog USB muaj peev xwm, thiab ze li ntawm tag nrho USB cables, txhawb tsawg kawg USB 2.0.
Cov kev siv uas ua raws li lub USB 2.0 tus qauv muaj peev xwm mus kis tau cov ntaub ntawv ntawm kev siab tshaj plaws ntawm 480 Mbps. Qhov no yog sai dua tus laus USB 1.1 qauv thiab ntau dua qeeb dua tus tshiab USB 3.0 txheem.
USB 1.1 tau tso tawm rau lub Yim Hli 1998, USB 2.0 hauv Plaub Hlis Ntuj 2000, thiab USB 3.0 hauv lub Kaum Ib Hlis 2008.
Lus Cim: USB 2.0 feem ntau hu ua Hi-Speed USB .
USB 2.0 Connectors
Lus Cim: Plug yog lub npe muab rau tus txiv neej connector ntawm USB 2.0 cable los yog flash tsav , thaum lub kaw lus yog lub npe muab rau tus poj niam connector ntawm lub USB 2.0 device los yog txuas txuas ntxiv.
- USB hom A : Cov connectors muaj technically hu ua USB 2.0 Standard-A thiab yog lub zoo kawg nkaus ntawm cov roj connectors koj yuav pom ntawm feem ntau ntawm cov khoom siv tsis yog. USB 2.0 Hom A connectors yog lub cev sib xws nrog cov neeg ntawm USB 3.0 thiab USB 1.1.
- USB hom B : Cov connectors yog technically hu ua USB 2.0 Standard-B thiab cov xwmfwb tshwj xeeb ntawm tus me me nqis siab tshaj rau saum toj. USB 2.0 hom B plugs muaj lub cev zoo tshaj USB 3.0 thiab USB 1.1 Hom B cov khoom siv tab sis USB 3.0 Hom B plugs tsis rov qab tau tshaj USB 2.0 Hom B lub pob tw.
- USB Micro-A: Cov connectors, tshwj xeeb tshaj yog cov plugs, zoo li me me versions ntawm USB 2.0 hom A connectors. USB 2.0 Micro-A plugs yog sib npaug nrog USB 2.0 Micro-AB pob tw thiab USB 3.0 Micro-AB pob txaws. Txawm li cas los, tshiab USB 3.0 Micro-A plugs yuav tsis haum hauv USB 2.0 Micro-AB pob tw.
- USB Micro-B: Cov connectors no me me thiab qis plaub, tiam sis ob lub ces kaum ntawm ib sab yog hlav siv tsis xwm yeem. USB 2.0 Micro-B plugs zoo ib yam li plaub lub pob tw: USB 2.0 thiab USB 3.0 pob tw Micro-B thiab Micro-AB. Newer USB 3.0 Micro-B plugs tsis rov qab tau tshaj ntawm USB 2.0 Micro txtim.
- USB Mini-A: Cov connectors no me me thiab feem ntau cov duab plaub nrog ib sab sib npaug heev. USB 2.0 Mini-A plugs tsuas yog sib npaug nrog USB 2.0 Mini-AB pob txuv.
- USB Mini-B: Cov connectors no me me thiab feem ntau cov duab plaub hau nrog qhov muag pom ntawm sab nraub. USB 2.0 Mini-B plugs sib npaug nrog USB 2.0 Mini-B thiab USB 2.0 Mini-AB pob txuv.
Lus cim: Tsuas USB 2.0 txhawb USB Mini-A, USB Mini-B, thiab USB Mini-AB connectors.
Mus saib peb daim ntawv Qhia Txog Lub Cev Rau Lub Cev Muaj Zog (Flexible Compatibility Chart) rau ib nplooj ntawv siv rau qhov twg-haum-nrog-yam.
Txuas Txawb Ntaus Nrawm
Lub qub USB 1.1 cov khoom thiab cables yog, rau feem ntau cov feem, lub cev tau tshaj USB 2.0 hardware. Txawm li cas los xij, txoj kev uas yuav ncav cuag USB 2.0 kis ceev tshaj yog tias txhua yam khoom siv thiab cov cables txuas nrog txhua lwm yam kev pabcuam USB 2.0.
Yog tias, piv txwv li, koj muaj lub USB 2.0 siv nrog USB 1.0 cable, tus 1.0 ceev yuav raug siv tsis hais qhov tseeb tias tus ntaus ntawv txhawb USB 2.0 txij li thaum lub cable tsis txhawb tshiab, ceev ceev.
USB 2.0 cov khoom siv thiab cov cab siv nrog USB 3.0 li thiab cables, piv txwv tias yog lawv lub cev tshaj, yuav khiav lag luam ntawm qhov qis USB 2.0 ceev.
Nyob rau hauv lwm yam lus, qhov kev sib kis ceev ceev ntog mus rau laus dua ntawm ob lub tshuab yees. Qhov no ua rau kev txiav txim zoo txij li thaum koj tuaj yeem rub USB 3.0 speeds tawm ntawm USB 2.0 cable, tsis tau koj tau txais USB 2.0 kis ceev uas siv USB 1.1 cable.
USB On-the-Go (OTG)
USB On-the-Go tawm hauv Lub Kaum Ob Hlis 2006, tom qab USB 2.0 tab sis ua ntej USB 3.0. USB OTG pub rau nruab nrab ntawm cov yeeb yam ua ib lub party thiab ua qhev thaum tsim nyog kom lawv tuaj yeem txuas rau ncaj qha.
Piv txwv li, ib qho USB 2.0 smartphone los yog ntsiav tshuaj tej zaum yuav muaj peev xwm rub cov ntaub ntawv tawm ntawm ib lub tshuab fais fab li tab sis ho hloov mus rau qhev hom kab thaum txuas nrog lub computer kom tau cov ntaub ntawv tawm ntawm nws.
Cov cuab yeej siv khoom siv hluav taws xob (tus tswv tsev) yog qhov OTG A-ntaus thaum lub sijhawm uas siv lub hwj chim (tus qhev) hu ua B-device. Tus qhev ua raws li lub tshuab ntaus peripheral nyob hauv hom teeb.
Hloov cov cwj pwm yog siv los ntawm kev siv cov lus sib tham hauv lub tswv yim (HNP), tiam sis lub cev xaiv uas tus USB 2.0 ntaus ntawv yuav tsum tau lees paub tus qhev los yog tus tswv tsev los ntawm qhov kev pheej yig kom yooj yim raws li xaiv qhov kawg ntawm txoj kab txuas nrog.
Qee zaus, HNP pov npav yuav coj los ntawm tus tswv tsev los txiav txim seb tus qhev puas tau thov kom tus tswv tsev, thaum twg lawv tuaj yeem sib pauv chaw. USB 3.0 siv HNP pov npav zoo li tiam sis nws hu ua Cov Kev Cai Sib Pauv (RSP).