RS-485 (mawonekedwe Converter): The chithunzi ndi kufotokozera

RS-485 - ndi mtundu wa transducer kuti ntchito Intaneti mafakitale. Amagwiritsidwanso ntchito mu mizere ya masiyanidwe. Nthawi zambiri pali kusinthidwa wa USB-cholumikizira. Mfundo ntchito selo wamangidwa pa ukuthamana potumiza otsika pafupipafupi nyemba.

Converters amasiyana pakati pa chizindikiro choyamba cha kulimbikira linanena bungwe. Tiyeneranso adzanyamula kukumbukira kuti zitsanzo anapangidwa ndi osiyana mlingo deta. Kuti timvetse mwatsatanetsatane mu iwo, muyenera kuganizira wokonzedwanso mwamakono ndi Kulumikizana.

Standard kugwirizana Converter

Mwachizolowezi kugwirizana inverter dera chikuphatikizapo resistors kudziletsa malamulo ndi expander. The thyristor ndi zambiri ntchito oyimba-mmwamba mtundu. Pofuna kupewa overloading wa maukonde, ntchito mbale. Nthawi zina, kufala wokwera mu atomu vavu chubu mtundu. Okwana unyolo kungakhale kwa capacitors asanu. Pafupifupi linanena bungwe impedance ndi zosakwana 5.5 ohms. Ngati tikambirana mafakitale RS-485 mawonekedwe ndi kudzipatula galvanic, pali ntchito zimachitika extender.

Model pa Akamva 100 pa mphindi

Converter RS-232/485 mawonekedwe a mtundu chikugwirizana yekha kudzera transceiver lapansi. Pankhaniyi, kutalika pazipita gawo limodzi si upambana 1200 nm. Pafupifupi mowa panopa chizindikiro ndi wofanana 130 MA. Ngati tikulingalira Converter Efaneti polumikizira RS-485 popanda zochulukitsira, ndiye anagwiritsa ntchito gawo lotetezedwa mkuzamawu.

Chipangizo cholinga kulumikiza munthu pazipita transceivers asanu. Pankhaniyi, mphamvu chizindikiro zimadalira mphamvu panopa matulukidwe. RS-485 mawonekedwe chingwe amapereka mfundo-ziro mlingo 200 MV. Tilinazo kugwa kumadalira mtundu wa transceiver.

Zipangizo 300 Akamva pa yachiwiri

Zosintha wa mtundu uwu tinapangidwa, monga ulamuliro, thandizo la palibe transceivers zoposa zisanu. Pakuti theka duplex deta kuwombola chipangizo ndi loyenereradi. zinthu Kulumikizidwa makamaka kupyolera mkuzamawu chachikulu. Okwana unyolo si ntchito capacitors oposa atatu. Pa avareji converters mlingo anamupha ndi osapitirira 1 V pa microsecond. Zochulukitsira akugwiritsidwa kokha zimachitika mtundu. Ngati tikulingalira RS-422/485 (kugwiritsa Converter) kwa modemu chingwe, ndiye amatsatira ndi mu atomu vavu chubu. Kulowelera mu madera amenewa anaona zambiri. Iwo ayenera kukumbukira kuti mlingo mfundo imodzi, pafupifupi wofanana 150 MV.

Chitsanzo 600 Akamva pa yachiwiri

Chiyankhulo Converter RS-485 USB ntchito mtundu wa zingwe modemu. The pazipita gawo kutalika mu nkhani iyi ndi wofanana 1300 nm. Chipangizo kwa HIV bidirectional deta agwirizane bwino. Tilinazo pafupifupi ya converters kugwa si upambana 210 MV. Munamupha Voterani liri za 1.2 kuti microseconds.

Polumikiza zosintha akhale kupyolera gawo lotetezedwa mkuzamawu kapena resistor. Ngati tikambirana njira yoyamba imeneyi simungakhoze kuchita popanda waya thyristor. M'pofunikanso kukumbukira kuti capacitor ndi abwino kwa mbale okha. Ngati tikulingalira Converter mawonekedwe RS-485 USB resistors, ndiye lidalembedwa mu atomu vavu chubu mtundu. Pankhaniyi, linanena bungwe impedance a dongosolo fluctuates kuzungulira 4.6 ohms.

Chitsanzo 10 transceivers

Converters 10 transceivers mkulu linanena bungwe impedance chizindikiro. Oyenera zipangizo za mtundu uwu kwambiri kufala deta bidirectional. Chizindikiro mowa panopa pafupifupi wofanana 230 MA. Mlingo deta ndi zosakwana 130 Akamva pa mphindi. zitsanzo abwino kachitidwe makina.

Munamupha mlingo chizindikiro kwa transducer si upambana 1.3 V pa microseconds a. Tilinazo kugwa mu nkhani iyi ndi zonyozeka. Mwachindunji kulumikiza zipangizo kumachitika kudzera resistor mtundu chosinthika kapena extender. Ngati tikambirana chimake choyamba, mu nkhani iyi, simungakhoze kuchita popanda transceiver zazikulu. Kugwirizana kudzera expander ndi ambiri kwambiri pa mlingo wa zomveka ziro.

Chiwembu 13 transceivers

Converter RS-232/485 transceivers 13 chikugwirizana kudzera zapamadzi lapansi. Wapakati panopa mowa Zokonda pa chipangizo ndi 120 MA. Kuchepetsa chiopsezo kusokonezedwa ntchito trimmer. Thyristors zambiri chozunguzira mtundu.

Mwachindunji zapamadzi ntchito ndi mkuzamawu ndi. Pakuti theka duplex kulankhulana, converters amenewa ndi loyenereradi. Wapakati linanena bungwe kukana iwo musalumphe 4.5 ohms. Tilinazo kugwa mu nkhani iyi ndi wofanana osapitirira 170 MV.

Converters 50mA

RS-485 (mawonekedwe Converter) 50 MA ndi abwino okha kachitidwe makina. Chinthu chapadera cha chitsanzo akuti ndi liwilo kutengerapo deta. Mwachindunji kugwirizana zosintha ikuchitika kudzera kudzipatula galvanic. Mu nkhani iyi, tilinazo kugwa ndi wamkulu kuposa 150 MV. Zomveka mlingo ziro ndi wofanana 230 MV. Ngati tikulingalira chipangizo kulankhulana bidirectional, iwo amagwiritsa ntchito mtundu zimachitika extender. Nawonso transceiver ndi abwino okha zazikulu.

Converters 120 MA

RS-485 (mawonekedwe Converter) pa 120 MA chikugwirizana kudzera transistors duplex. Ngati tikulingalira Baibulo ndi dongosolo anaonetsa, ndiye ali ndi wochitachita transceiver. Pakuti theka duplex deta kuwombola chipangizo ndi loyenereradi. Onse angathe kulumikiza ku transceivers khumi. Monga ulamuliro, mlingo mfundo imodzi ndi zosakwana 130 MV.

Pankhaniyi, chiwerengero cha oyendetsa malingana ndi mphamvu ya mkuzamawu chachikulu. Extender ntchito makamaka kugula mtundu. Kutalika pazipita gawo limodzi ndi wofanana NS 1300. Zipangizo kachitidwe zokha agwirizane bwino. Munamupha mlingo chizindikiro ambiri alibe upambana 1.1 V pa microsecond.

theka-duplex mtundu chipangizo

RS-485 (mawonekedwe Converter) angathe theka duplex-mtundu transistor chikugwirizana kudzera wolemba pulogalamu. Kuchita izi, thyristor ntchito ndi mkuzamawu chachikulu. Transceiver likukhudza onse zazikulu ndi munda mtundu. The linanena bungwe impedance a dera si upambana 5.4 ohms. The chizindikiro cha mowa panopa avareji wofanana 130 MA. Kusonyeza phwando deta Pankhaniyi amaperekedwa muyezo.

file kutengerapo liwiro si upambana Akamva 100 pa mphindi. The tilinazo kugwa pa mlingo wa 230 MV. M'pofunikanso kukumbukira kuti kugwirizana transducer akhoza kukhala kudzera podstrochenny extender. Mu nkhani iyi, resistor ndi oyenera chosinthika mtundu. Mwachindunji thyristor ntchito ndi kusintha mkuzamawu. Okwana pali atatu dera capacitor.

kusinthidwa masiyanidwe

The masiyanidwe RS-485 (mawonekedwe Converter) ntchito yekha kwa modemu chingwe. Umboni deta phwando Pankhaniyi amaperekedwa. Mphamvu converters kudzera doko yusb. Ambiri zitsanzo thandizo "windose 7" ndi XP. Current mlingo mowa ndi wofanana ndi zosaposa 190 MA. A mfundo mlingo umodzi si oposa 90 MV.

Kulumikiza zipangizo ntchito osati capacitors, koma resistors ndi munda. mlingo Zomveka ziro, monga ulamuliro, si upambana 120 MV. Liwiro mbendera mu mtundu uwu wa chitsanzo ndi mkulu. Voterani tilinazo kugwa Converter mawonekedwe RS-485 (RS-232) ndi pa mlingo wa 170 MV. Munamupha mlingo ndi zosakwana 1.2 V pa microsecond.

Kulumikiza kudzera extender ntchito

Ngati tikulingalira Kulumikizana mwa mkuzamawu ntchito, ndikofunika kudziwa kuti kumwa panopa mtengo sayenera upambana 200 MA. Kumayambiriro kwa unyolo ndi a osachiritsika bokosi. thyristor The kokha ntchito angapo capacitors. ziwiri zokha dongosolo elekitirodi amaperekedwa. The transistor ndi abwino okha malamulo mitundu. Pankhaniyi, mlingo mfundo imodzi si upambana 150 MV. Gawo lotetezedwa amplifiers kwa madera amenewa abwino. Onse olumikizidwa kwa inverter si transceivers zoposa sikisi.

Single-lofotokozera Converter ndi expander

RS-485 mawonekedwe Converter ndi zochulukitsira lokhala ndi inatha muyenera kuti zingwe modemu. Sonyezani dongosolo kulandira deta ku zitsanzo za zilipo kwa mtundu diode. Wapakati mowa panopa ndi zosakwana 230 MA. zipangizo abwino okha theka duplex kuwombola deta. mtokoma deta si upambana Akamva 120 pa mphindi.

M'pofunikanso kukumbukira kuti zitsanzo za ntchito kuteteza dongosolo kuchokera voteji mkulu. Pomwepo chipangizo zoyendetsedwa ndi doko yusb. Voterani tilinazo kugwa, pa pafupifupi wofanana 160 MV. Liwiro mbendera mu zitsanzo za si mkulu. The transceiver kwayekha magetsi ndi amagwiritsidwa ntchito zazikulu mtundu. Akukumana kwenikweni amatanthauza gawo lotetezedwa mkuzamawu. Chiboda RS-485 linanena bungwe impedance ndi zosakwana 5,8 ohms.

Ntchito resistors lotseguka

Zipangizo anapangidwa ndi resistors lotseguka 120 ndi 200 MA. kugwirizana chapangidwa kudzera bokosi osachiritsika. Mphamvu zitsanzo anapangidwa kudzera doko yusb. Oyenera pagalimoto -rs 485 kwa theka duplex kulankhulana deta. Njovu amplifiers n'zochepa kwambiri machitidwe a mtundu uwu. Zochulukitsira amapezeka kawirikawiri ntchito mtundu wa zimachitika. Pafupifupi mlingo mfundo imodzi ndi wofanana ndi zosaposa 135 MV. Kutalika pazipita gawo limodzi kuzungulira 1300 nm.

Kugwiritsa yoweyula transceiver

Zosintha kwa transceivers yoweyula oyenera onse theka duplex ndi kulankhulana bidirectional. Kulanda deta liwiro mu nkhani iyi ndi wofanana za 230 Akamva pa mphindi. Total chipangizo zimathandiza khumi transceivers. Pafupifupi kutalika gawo limodzi si upambana 1400 nm. Nawonso index chofanana ndi kukana linanena bungwe la 5.1 ohms. munamupha mlingo Pankhaniyi zimadalira mtundu wa mkuzamawu.