RS-232 taura: whakaahuatanga, niznachenie, ngā

Tino korero, RS-232 taura - ko te ingoa o te paerewa e whakaahua ana i te atanga, me te hononga i te PC ki te pūrere raraunga. RS - paerewa tūtohu, iritihia rite "tūtohutia paerewa", me 232 - te momo o te tau. I whakawhanakehia te reira i roto i nga te 60raa o te rau tau whakamutunga. I teie mahana, te putanga hou o tenei paerewa, i tangohia i te tau 1991 i te rōpū o te aratuku me hiko ahumahi, mohiotia te rite Eia / Tia-232-E. Heoi, ko te nuinga o te iwi tonu ki te whakamahi i te ingoa "RS-232 cable," e mau "hutia" ki te atanga.

whakarato te atanga i runga ake i te pūhui o te whakaaro e whai ake nei: DTE (Raraunga Terminal Taputapu) - te DTE (Raraunga Kāpeka Taputapu), ko DCE (Taputapu Whakawhitiwhiti Raraunga) - CPD (raraunga taputapu tuku). I raro i DTE te tikanga tikanga he rorohiko whaiaro, me i raro i te CAP - te pouwhanga. Ahakoa te whakamahia hoki te RS-232 taura ki te hono ki te PEOM atu apatoko (pūreretā, kiore, me pera i runga i. D.), ka ki hono ki ētahi atu rorohiko pūmana ranei. He mea nui ki te mahara te DCE me nga iku'anga DTE, rite ratou e whakamahia i roto i te ingoa o tohu atanga me te āwhina ki te mahi ki te whakaahuatanga o te pūrere e hiahiatia ana.

I te tīmatanga, RS-232 taura kua he momo tūhono 25-titi DB25. whakahaputia momo DTE taputapu tūhono-turanga ( "Mama"). I muri ka anga ratou ki te whakamahi i te "tapahia-iho" putanga o te atanga ki 9-titi DB9. he noa i roto i to tatou ra tenei momo o te taura.

Ko te waea o te taura RS-232

Kei raro i te taumahi 9 tūhono DB9 momo kontaktngo kāpeka. E whakaatu ana te rārangi i te pinout tūhono ( "Teti") taputapu tukatuka raraunga pērā i te rorohiko whaiaro. -Rīpene tuku raraunga pūrere unsoldering kia e piri tūhono rua mā te taura tika ranei "whakapā i roto i te whakapā".

1. Carrier Rapu - te aroaro o te auau kawe.

2. riro Raraunga - riro raraunga.

3. Kua Tarea Raraunga - te raraunga te tuku.

4. Raraunga Kāpeka Ready - hihiko LTD.

5. Tohu whenua - katoa.

6. Raraunga Tautuhi Lau - hinaaro ki HPD.

7. Tono Ki Tukua - te tono whakawhiti.

8. ClearToSend - rite ki te unga.

9. Ring Tūtohu - te aroaro o te tohu karanga.

E tuku e te iahiko RD me TD Raraunga. Kua hangaia te toe iahiko ki te whakaatu i te DTR mana me ngā pūrere DSR, mana tuku CTS me RTS, rite pai rite te RI whakaatu mana me ngā rārangi CD. Anake ka hono ki te PC mā te whakamahi i te pouwhanga waho, he huinga tonu o mekameka. A, no te tūhono ki ētahi atu apatoko, pērā i pūmana te kiore ranei, te whakamahi i ara iahiko whiriwhiri e hiahiatia ana mo te taputapu motuhake. whakawhirinaki ratou i runga i te taputapu me te pūmanawa o te pūrere.

Whakamārama me te hangarau tawhā

āta whakatakoto Paerewa te roa ka taea mōrahi o te RS-232 taura - 15 mita i te tere raraunga o 9600 moka / s. Heoi, i roto i te mahi manatoko reira tutuki taua mahi pūmau te me i te roa nui o te waea. Kei te whakapono te reira e taea te nui haere te tono o te roa taura unshielded ki 30 mita, a ka whakamahi i te paruruhia - ki runga ki te 75 mita. Na tenei i waho ngaro auau raraunga. Ki te he e pā ana ki rua te tere o raro, nui haere te roa taura kei te ka rererua. E tūtohu ana ki te whakamahi i te hāngai taura- miro-rua cable, i roto i te take i taua, takirua ia raina tohu te ki te waea noa. E kore e tūtohu ana ki te whakakotahi i te whakangungu rakau taura ki te tohu noa.

Ka taea e maha e kitea e koe RS-232- USB taura. Ko te atanga paerewa i runga i tetahi pito e whakamahi ana i te tūhono USB.