Kev faib tawm ntawm RS485 Converters
Feem ntau 485 converters tuaj yeem muab faib ua pawg hauv qab no raws li kev ua tau zoo: passive 485 converters, nquag 485 converters, optically cais 485 converters, network 485 converters, thiab optical fiber rau 485 converters.
1. Passive RS485 Converters
Lub passive 485 converter yog qhov tsawg tshaj plaws ntawm qhov loj. Nws siv serial chaw nres nkoj fais fab nyiag tshuab los muab lub hwj chim thiab tsis tas yuav tsum tau siv hluav taws xob sab nraud, yog li nws yooj yim dua rau hauv daim ntawv thov. Vim nws qhov me me, ntau qhov kev tiv thaiv Circuit Court tsis tuaj yeem siv tau, ua rau muaj kev tiv thaiv ntawm 485 cov khoom siv thiab khoos phis tawj. Zoo heev; vim yog siv cov khoom siv hluav taws xob serial chaw nyiag khoom, lub zog hluav taws xob tsis txaus, ua rau muaj kev thauj khoom me me. Lub passive 485 converter thov kom muaj kev ua haujlwm ntawm kev tiv thaiv xob laim. Vim nws qhov me me, nws tsis yog qhov tseeb heev los ntxiv cov khoom xws li xob laim tiv thaiv hauv nws. Txawm hais tias muaj, kev ua haujlwm tsis zoo heev. Passive 485 converters feem ntau yog siv nyob rau hauv lub sij hawm uas qhov yuav tsum tau tsis siab heev.
2. Active RS485 Converters
Active 485 converters feem ntau yog cov khoom siv hluav taws xob, thiab cov khoom siv xws li kev tiv thaiv hluav taws xob tuaj yeem tiv thaiv kev puas tsuaj sab nraud xws li surges, electromagnetic cuam tshuam, thiab xob laim cuam tshuam. Tiv thaiv computers thiab 485 pab kiag li lawm. Hom 485 converter muaj lub peev xwm muaj zog ntau dua li hom passive, thiab qhov kev sib kis feem ntau yog siab dua lossis sib npaug li 1200 meters / 9600bps.
3. Optically cais RS485 Converters
Optical cais hom 485 converters siv sab nraud fais fab mov. Ntawm lawv, nws tau muab faib ua ib leeg-kawg cais thiab ob-kawg cais. Ib leeg-kawg kho qhov muag cais txhais tau hais tias lub optical cais nti thiab xob laim tiv thaiv technology yog siv nyob rau hauv 485 teeb liab channel, thiaj li hais tias cov hluav taws xob teeb liab hloov dua siab tshiab rau hauv ib tug optical teeb liab, thiab ces lub optical teeb liab hloov dua siab tshiab rau hauv hluav taws xob teeb liab. teeb liab, kom tsis muaj hluav taws xob tiv tauj ntawm 485 teeb liab channel, yog li ua tiav kev sib cais. Kev rho tawm ob lub davhlau ya nyob twg yog ua raws li kev paub txog kev sib cais ntawm photoelectric ntawm 485 lub teeb liab, thiab tom qab ntawd lub zog ntawm 485 converter yog powered, thiab transformer yog siv los ntawm 232 davhlau ya nyob twg thiab 485 davhlau ya nyob twg, yog li ntawd lub hwj chim mov muaj. tsis muaj hluav taws xob tiv tauj, yog li paub qhov tseeb. muab cais nyob ib leeg. Lub tuam txhab AU-361, AU-338 thiab lwm yam qauv ntawm photoelectric rho tawm hom 485 converters muaj nyob rau hauv pawg no, muab kev tiv thaiv tag nrho xws li kev tiv thaiv xob laim, kev sib cais ob zaug, thiab lwm yam los tiv thaiv koj lub computer thiab 485 khoom siv.
4. Network RS485 Converters
Lub network hom 485 converter (serial chaw nres nkoj neeg rau zaub mov) muab serial chaw nres nkoj rau network muaj nuj nqi, uas yuav hloov RS-232/485/422 teeb liab rau hauv TCP/IP network teeb liab, thiab paub cov ntaub ntawv sib xws nrog RS-232 / 485/422 thiab TCP / IP network Ob-txoj kev pob tshab kis tau tus mob, yog li ntawd lub serial ntaus ntawv muaj lub luag hauj lwm ntawm TCP / IP network interface, thiab cov ntaub ntawv sib pauv tuaj yeem nqa tawm hauv Is Taws Nem, uas nthuav dav kev sib txuas lus ntawm cov serial. ntaus ntawv.
5. Optical Fiber rau RS485 Converters
Optical fiber ntau rau 485 converter (tseem hu ua 485 optical cat) converts RS232, RS485/422 teeb liab mus rau cov teeb liab kho qhov muag, xws li cov khoom yuav tsum tau siv ua khub, muab faib ua (xa mus rau qhov kawg) thiab (tau txais qhov kawg), siv optical fiber xa mus rau RS232. , RS485 / 422 teeb liab bidirectional pob tshab kis tau tus mob, 485-to-fiber converter muaj zoo tiv thaiv surge, electromagnetic cuam tshuam thiab xob laim cuam tshuam, multi-mode optical miv kis tau nyob rau hauv 2 kilometers, ib leeg-hom optical miv kis tau ntau tshaj 10 km; 485-rau-fiber converter feem ntau Nws yog siv nyob rau hauv ib puag ncig uas muaj zog tsis pub lwm tus paub thiab complex electromagnetic cuam tshuam.
