Qhov txawv ntawm USB thiab RS232 yog dab tsi?

Lub cev interfaces thiab txoj kev sib txuas
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USB yog ib tug universal thiab high-speed serial tsheb npav tus qauv siv los txuas cov khoos phis tawj thiab lawv cov khoom siv sab nraud. USB interface yog kub swappable, uas txhais tau hais tias koj tuaj yeem ntxig lossis tshem tawm cov khoom siv USB thaum lub khoos phis tawj khiav tsis tas yuav rov pib lub computer. USB interfaces feem ntau yog compact, nrog cov duab sib txawv xws li Hom-A, Hom-B, Micro USB, thiab USB-C.
Qauv TSIS MUAJ: RS232
RS232 yog cov qauv kev sib txuas lus ib txwm siv los txuas cov khoos phis tawj thiab cov khoom siv sib txuas. RS232 feem ntau siv 9 lossis 25 tus pin connectors, thiab thaum sib txuas, nws yog ib qho tsim nyog los xyuas kom meej tias lub cuab yeej raug muab tua kom tiv thaiv kev puas tsuaj ntawm cov khoom siv. Tsis zoo li USB, RS232 feem ntau tsis txhawb kev sib pauv kub.
Voltage theem thiab teeb liab kis tau tus mob
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USB siv cov teeb liab sib txawv, qhov sib txawv ntawm ob theem txheeb ze sawv cev rau cov ntaub ntawv khoom. USB feem ntau ua haujlwm ntawm qib voltage ntawm 5V thiab muaj kev cuam tshuam siab thiab kev ntseeg siab. Tsis tas li ntawd, USB interface tuaj yeem muab cov khoom siv hluav taws xob, yog li nws tuaj yeem them cov khoom siv sib txuas.
Qauv TSIS MUAJ: RS232
RS232 siv tib lub teeb liab xa mus, qhov twg cov ntaub ntawv cov khoom sawv cev los ntawm ib theem voltage. RS232 feem ntau ua haujlwm ntawm qhov qis qis, feem ntau yog +12V thiab -12V. Vim yog kev siv cov teeb liab tas ib zaug, RS232 tej zaum yuav muaj kev txwv tsis pub cuam tshuam thiab kis tau tus mob piv rau USB.
Cov ntaub ntawv kis ceev
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USB muaj ntau qhov sib txawv, suav nrog USB 1. x, USB 2.0, USB 3.0, thiab USB 3.1, txhua tus muaj cov ntaub ntawv sib txawv. USB 3.0 thiab 3.1 versions txhawb kev nrawm dua, mus txog 5 Gbps lossis siab dua. USB feem ntau yog siv rau kev sib kis cov ntaub ntawv ceev thiab tsim nyog rau kev sib txuas ntau yam khoom siv, los ntawm cov tshuab luam ntawv mus rau sab nraud hard drives.
Qauv TSIS MUAJ: RS232
RS232 feem ntau muaj qis dua cov ntaub ntawv kis tau tus mob, nrog rau qhov ceev tshaj plaws yog 115200 bps. Vim nws cov xwm txheej ib txwm muaj, RS232 feem ntau yog siv los txuas cov khoom siv qis qis uas tsis xav tau cov ntaub ntawv xa mus ntau, xws li cov tshuab luam ntawv serial lossis cov cuab yeej tswj hwm.
Daim ntawv thov thaj chaw thiab ntaus ntawv compatibility
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USB tau dhau los ua tus txheej txheem thoob ntiaj teb siv dav hauv ntau yam khoom siv, suav nrog cov tshuab luam ntawv, koob yees duab, keyboards, nas, mobile devices, thiab lwm yam. Yuav luag txhua lub khoos phis tawj niaj hnub no tau nruab nrog USB interfaces, ua rau USB yog tus qauv nyiam rau kev sib txuas ntawm cov cuab yeej.
Qauv TSIS MUAJ: RS232
RS232 tseem siv dav hauv qee cov cuab yeej qub, tshwj xeeb tshaj yog nyob rau hauv qee qhov kev lag luam automation thiab tswj tshuab. Txawm li cas los xij, vim nws cov xwm txheej thiab qee qhov kev txwv, kev siv RS232 hauv cov khoos phis tawj niaj hnub thiab cov khoom siv hluav taws xob tau maj mam txo qis.