RS-232 USB: inkcazelo, niznachenie, iinkcukacha

Ngokwenene, RS-232 intambo - ligama umgangatho echaza elilujongano kunye oluphuma kwiPC ukuya ifowuni data. RS - standard akunconywa, eliguqulelwe ngokuthi "ekucetyiswa standard", yaye 232 - nohlobo inani. It yaphuhliswa 60s kwinkulungwane yokugqibela. Namhlanje, inguqulo entsha yale umgangatho, eyavuma ngo-1991 umbutho lonxibelelwano elektroniki namashishini, yaziwa EIA / TIA-232-E. Nangona kunjalo, uninzi lwabantu kuqhubeka ukusebenzisa igama "RS-232 USB," nto leyo 'ugxilile "kujongano.

Le interface ngasentla inika ambaxa ezi zixhobo zilandelayo: DTE (Data Terminal Isixhobo) - i DTE (Data Terminal Isixhobo), kunye DCE (isiXhobo soQhagamshelwano-Nkcukacha) - CPD (data izixhobo transmission). Phantsi DTE ngokuqhelekileyo kuthetha ikhompyutha yobuqu, kwaye phantsi le chap - imodem. Nangona RS-232 ngentambo ikwasetyenziselwa ukudibanisa ukuya PEOM kwezinye peripherals (umshicileli, mouse, njalo njalo. D.), Yaye ukuzidibanisa kwezinye iikhompyutha okanye izilawuli. Kubalulekile ukukhumbula ukuba DCE kunye izihionipho DTE, njengoko zisetyenziswa amagama lojongano imiqondiso kunceda ukujongana inkcazelo icebo.

Ekuqaleni, RS-232 USB umntu isikhonkwane-25 uhlobo isinxibelelanisi DB25. DTE uhlobo izixhobo yamitha isinxibelelanisi-iziseko ( "UMAMA"). Kamva baqala ukusebenzisa i 'kunqunyulwa-phantsi "inguqulelo zojongano kunye 9-pin DB9. Olu hlobo cable eziqhelekileyo imihla yethu.

Ukubiyelwa le RS-232 cable

Ngezantsi yesiphelo isabelo 9 uhlobo kontaktngo DB9 isinxibelelanisi. Olu luhlu lubonisa i pinout isinxibelelanisi ( "daddy") izixhobo lweenkcukacha ezifana ikhompyutha siqu. Nerozi ukudluliselwa data isixhobo unsoldering ukuze zombini izihlanganisi aba nge intambo okanye ngqo 'zoqhagamshelwano kule contact ".

1. yenethiwekhi Ukubona - ubukho njalo yenethiwekhi.

2. Yamkelwe Data - wafumana data.

3. Ithunyelwe Data - iinkcukacha adlulisele.

4. Data Terminal Ready - ukulungela LTD.

5. Signal Ground - iyonke.

6. Data Set Funda - ukuzimisela HPD.

7. Isicelo To Thumela - isicelo transfer.

8. ClearToSend - ulungele ukuthumela.

9. Ring Isalathisi - ubukho uphawu umnxeba.

Idatha kudluliselwa yi kwiisekethe RD kunye TD. KwiSekethe aseleyo yenzelwe ukubonisa Dtr iwonga kunye nezixhobo DSR, ulawulo transmission CTS kunye a th, kwakunye isimo ukubonisa RI kunye imigca CD. Kuphela xa idityaniswe PC ngokusebenzisa i modem yangaphandle, isethi epheleleyo ngemixokelelwane. Xa uqhagamshela kuso ezinye peripherals ezifana nabaqondisi okanye mouse, sebenzisa wesekethe uyakhetha ezifunekayo izixhobo ezithile. Baxhomekeke kwi-hardware ne-software kwefowuni.

Inkcazelo nezokusebenza iparameters

Standard ichaza ngokucacileyo ubude liphezulu kangangoko RS-232 USB - 15 leemitha ngeqondo data of 9600 bit / s. Noko ke, xa kusenziwa baqinisekisa ukuba intsebenziswano ezinzileyo kufikelelwe kwaye ubude kakhulu kwicingo. Kukholelwa ukuba isicelo se-ubude intambo unshielded angandiswa nemitha ezi-30, yaye xa usebenzisa isixhobo eso sikhuseleke - ukuya kuthi ngeemitha ezili-75. Kwaye oku ngaphandle kokulahlekelwa rate data. Ukuba kwisantya olusezantsi malunga kabini, ubude cable inyuswe yaye kabini. Kucetyiswa ukuba usebenzise intambo-based ecikizekileyo, ephothiweyo-isibini USB, kwimeko enjalo, umgca uphawu ngasinye uhamba kunye ucingo eqhelekileyo. Ayikhuthazwa ukudibanisa ikhaka intambo uphawu eqhelekileyo.

Wena uyakwazi ukufumana RS-232- USB USB. It is a ujongano eqhelekileyo kwelinye icala ukuba usebenzisa i isinxibelelanisi USB.