USB 2.0 Tlhaloso le Boitsebiso ba Mohokahanyi
USB 2.0 ke setšoantšo sa Universal Serial Bus (USB). Hoo e ka bang lisebelisoa tsohle tse nang le matla a USB, le hoo e ka bang mehala eohle ea USB, tšehetso bonyane USB 2.0.
Lisebelisoa tse khomarelang litekanyetso tsa USB 2.0 li na le matla a ho fetisetsa data ka lebelo le phahameng la 480 Mbps. Sena se potlakile ho feta USB e tsoetseng pele 1.1 le e liehang haholo ho feta standard 3.0 e ncha e tloaelehileng.
USB 1.1 e ile ea lokolloa ka August 1998, USB 2.0 ka April 2000, le USB 3.0 ka November 2008.
Tlhokomeliso: Hangata USB 2.0 e bitsoa Hi-Speed USB .
USB 2.0 Connectors
Tlhokomeliso: Plug ke lebitso le fuoeng motsoako oa banna ka mochine oa USB 2.0 kapa motlakase oa motlakase , ha ho amoheloa ke lebitso le fuoeng motsoako oa basali femelleng ea USB 2.0 kapa kakaretso ea ho atolosa.
- Mofuta oa A A : Li-connectors tsena li bitsoa USB 2.0 Standard-A 'me ke li-USB tse nang le mela e metso e' meli eo u tla e fumana lihlahisoa tse ngata tse seng tsa thepa. USB 2.0 Mofuta oa A li-connectors li lumellana hantle le tse tsoang ho USB 3.0 le USB 1.1.
- Mofuta oa B B : Li-connectors tsena li bitsoa USB 2.0 Standard-B 'me li na le lisekoere ntle le sebopeho se senyenyane ka holimo. USB 2.0 Mofuta oa B li-plug li lumellana hantle le USB 3.0 le USB 1.1 Mefuta ea mofuta oa B empa USB 3.0 Mofuta oa B-plugs ha o tsamaisane le USB 2.0 ea mofuta oa B.
- USB Micro-A: Li-connectors tsena, haholo-holo li-plug, li shebahala eka li nyenyane tsa liphetoho tsa USB 2.0 Mofuta oa A. USB 2.0 Micro-A plugs a lumellana le lisebelisoa tse peli tsa 2.0 2.0 Micro-AB le lisebelisoa tsa Micro-AB tsa USB 3.0. Leha ho le joalo, e ncha ea USB 3.0 Micro-A plugs e ke ke ea lumellana le litsing tsa USB 2.0 Micro-AB.
- USB Micro-B: Li-connectors tsena li nyenyane ebile li na le mahlakore a mabeli empa likhutlo tse peli ka lehlakoreng le leng li sekiselitsoe ho e-na le lisekoere. Linotlolo tsa USB 2.0 Micro-B li lumellana le lisebelisoa tse 'nè: USB 2.0 le USB 3.0 Li-micro-B le Micro-AB li-container. Mecha e ncha ea USB 3.0 Micro-B ha e khutlisetsoe morao ka mokelikeli oa USB 2.0 Micro.
- USB Mini-A: Li-connectors tsena li nyenyane 'me boholo ba tsona li na le mahlakore a mabeli ka lehlakoreng le le leng haholo. USB 2.0 Mini-A li-plug li lumellana feela le lisebelisoa tsa USB 2.0 Mini-AB.
- USB Mini-B: Li-connectors tsena li nyenyane mme boholo ba tsona li na le mahlakoreng a mabeli ka likhaello tse hlakileng mahlakoreng a mahlano. Linotlolo tsa USB 2.0 tsa Mini-B li lumellana le lisebelisoa tsa USB 2.0 Mini-B le USB 2.0 Mini-AB.
Tlhokomeliso: Ke USB 2.0 feela e tšehetsang li-USB Mini-A, USB Mini-B, le USB Mini-AB.
Sheba leqephe la rona la ho lumellana ka tsela ea USB bakeng sa leqephe le le leng la boitsebiso bakeng sa se lumellanang le seo.
Nako e potlakileng ea Sesebelisoa
Li-USB tsa khale tsa 1.1 lisebelisoa le lisebelisoa ke karolo ea boholo-holo, tse tsamaisanang le 'mele le sesebelisoa sa USB 2.0. Leha ho le joalo, tsela e le 'ngoe feela ea ho finyella lebelo la phetoho ea USB 2.0 ke haeba lisebelisoa tsohle le lisebelisoa li ntse li kopanngoa ho tšehetsa USB 2.0.
Haeba, ka mohlala, u na le sesebelisoa sa USB 2.0 se sebelisitsoeng ka lehare la USB 1.0, lebelo la 1.0 le tla sebelisoa ho sa tsotellehe hore na sesebelisoa se tšehetsa USB 2.0 ho tloha ha thaba e sa tšehetse mocha o potlakileng ka potlako.
Lisebelisoa tsa USB 2.0 le lisebelisoa tse sebelisoang ka lisebelisoa tsa USB 3.0 le lisebelisoa, li nka hore li lumellana hantle 'meleng, li tla sebetsa ka tlaase ea USB 2.0 lebelo.
Ka mantsoe a mang, lebelo la phetisetso le oela ho ba baholo ba theknoloji e 'meli. Sena se utloahala kaha ha o khone ho hula USB 3.0 ka lebelo la USB cable, leha e le hore u ka fumana lebelo la ho fetisetsa USB 2.0 ka cable cable ea USB 1.1.
USB On-the-Go (OTG)
USB On-the-Go e ile ea lokolloa ka December 2006, kamora 'USB 2.0 empa pele ho USB 3.0. USB OTG e lumella lisebelisoa ho fetola pakeng tsa ho sebetsa e le moeti le lekhoba ha ho hlokahala e le hore li ka kopana ka ho toba.
Ka mohlala, smartphone kapa tablet ea USB 2.0 e ka khona ho hula ditshebetso tsa ho khanna e le moeti empa o fetela ho boemo ba makhoba ha o kopantsoe khomphuteng e le hore boitsebiso bo ka nkoa ho eona.
Sesebelisoa se fanang ka matla (moemeli) se nkoa e le OTG A-device ha e ntse e ja matla (lekhoba) e bitsoa mochine oa B. Lekhoba le sebetsa joaloka mochine oa ponahalo ea mofuta ona.
Ho etsa mesebetsi e etsoang ka ho sebelisa Protocol Negotiation Protocol (HNP), empa ho khetha mochine ofe kapa ofe oa USB 2.0 ho nkoang hore ke lekhoba kapa moemeli ka ho sa feleng ho bonolo ho khetha khetho ea cable eo mochine o kopantsoeng le eona.
Ka linako tse ling, ho khethoa ha HNP ho tla etsoa ke moemeli ho fumana hore na lekhoba le kōpa hore e be moeti, mohlomong ha ba ka fetola libaka. USB 3.0 e sebelisa HNP ho khetha hape empa e bitsoa Role Swap Protocol (RSP).