RS-232 chingwe: kufotokoza, niznachenie, specifications

Kwenikweni, RS-232 chingwe - dzina la muyezo amene akufotokoza za mawonekedwe ndi malumikizidwe kwa PC kuti chipangizo deta. RS - analimbikitsa muyezo, likumasuliridwa kuti "analimbikitsa muyezo", ndi 232 - mtundu wa chiwerengero. Iwo anayamba kupanga mu 60s Mu zaka zapitazo. Lero, Baibulo latsopano lamulo limeneli, lomwe limaona mu 1991 kucheza ndi telefoni ndi zamagetsi mafakitale, chikudziwika ngati EIA / TIA-232-E. Komabe, anthu ambiri akupitirizabe kugwiritsa ntchito dzina "RS-232 chingwe," amene mwamphamvu "mizu" kwa mawonekedwe.

The mawonekedwe pamwamba imapereka pawiri zipangizo zotsatirazi: DTE (Data Pokwelera Zida) - ndi DTE (Data Pokwelera Zida), ndipo DCE (Data Kulumikizana Zida) - CPD (deta kufala zida). Pansi DTE zambiri limatanthauza kompyuta laumwini, ndi pansi pa kapu - ndi modemu. Ngakhale RS-232 chingwe amagwiritsidwanso ntchito kulumikiza kwa PEOM peripherals ena (chosindikizira, mbewa, ndi zina zotero. D.), Ndipo kulumikiza kompyuta kapena opha. Nkofunika kukumbukira DCE ndi DTE mayina, pamene ntchito maina a chizindikiro mawonekedwe ndi kuthandiza kuthana ndi malongosoledwe a chipangizo chofunika.

Poyamba, RS-232 chingwe ali 25 pini cholumikizira mtundu DB25. DTE mtundu zida n'kudzagona cholumikizira-zitsulo ( "AMAYI"). Kenako anayamba ntchito "kudula-pansi" buku la mawonekedwe ndi 9-pini DB9. Mtundu wa chingwe ndi wofala masiku athu.

The Kulumikizana kwa chingwe RS-232

M'munsimu osachiritsika ntchito 9 kontaktngo mtundu DB9 cholumikizira. mndandanda limasonyeza cholumikizira pinout ( "Abambo") zida deta processing monga kompyuta munthu. Rosette deta kufala chipangizo unsoldering kuti zolumikizira onse likugwirizana kudzera ndi chingwe kapena mwachindunji "kukhudzana pokhudzana ndi".

1. Okupatsirani kudziwa - pamaso pa chonyamulira pafupipafupi.

2. Alandira Data - analandira deta.

3. opatsirana Data - deta kuti opatsirana.

4. Data Pokwelera Okonzeka - chibvomerezo LTD.

5. Signal Ground - kwathunthu.

6. Data Anatipatsa Werengani - kufunitsitsa HPD.

7. Funsani kutumiza - pempho kulanda.

8. ClearToSend - okonzeka kutumiza.

9. mphete chizindikiritso - pamaso pa mbendera foni.

Data zimafalitsidwa ndi madera Rd ndi TD. Madera otsala tinapangidwa kusonyeza udindo DTR ndi zipangizo DSR, kufala ulamuliro CTS ndi RTS, komanso udindo anasonyeza RI ndi mizere CD. Only pamene olumikizidwa kwa PC ndi ntchito modemu zakunja akonzedwa zonse unyolo. Pamene polumikiza ena peripherals monga opha kapena mbewa, ntchito dera kusankha wofunikila zida zenizeni. Akudalira pa hardware ndi mapulogalamu chipangizo.

Kufotokozera ndi luso magawo

Standard bwino amasonyeza pazipita zotheka kutalika kwa RS-232 chingwe - mamita 15 pa mtengo deta ya 9600 pang'ono / s. Komabe, kuchita izo zinatsimikizira kuti ntchito khola zimatheka ndi nthawi yaitali kwambiri wa waya. Akukhulupirira kuti ntchito yaitali unshielded chingwe akhoza ziwonjezeke kwa mamita 30, ndipo pamene ntchito isagwe - mpaka mamita 75. Ndipo izi popanda kutaya ndalama deta. Ngati liwiro m'munsi ndi za kawiri, kutalika chingwe ndi chinawonjezeka ndi kawiri. Ndi bwino kugwiritsa ntchito chingwe ofotokoza zopotoka-awiri chingwe, mu Zikatero, aliyense mzere mbendera ndi wophatikizidwa ndi waya wamba. Iwo ali osavomerezeka kuphatikiza chishango chingwe kwa chizindikiro wamba.

Mukhoza kupeza RS-232- USB chingwe. Ndi muyezo mawonekedwe pa mapeto wogwiritsa ntchito ndi USB cholumikizira.