RS-485 (dubawa Converter): The zane da kuma bayanin

RS-485 - shi ne mai irin transducer cewa an yi amfani da masana'antu da cibiyoyin sadarwa. Haka kuma an yi amfani da bambanci Lines. Mafi sau da yawa akwai canji na USB-haši. Ka'idar aiki na cell da aka gina a kan wani canja wurin bayanai ta hanyar aika da low mita hatsaisai.

Converters bambanta tsakanin mai farko siga na fitarwa juriya. Ya kamata kuma a haifa tuna cewa model an yi tare da daban-daban data kudi. Domin ya fahimci a more daki-daki a cikin su, ya kamata ka yi la'akari da gyaggyarawa da wayoyi.

Standard dangane Converter

Saba dangane inverter kewaye hada da wani kai-gudãnar resistors da yalwatãwa. A thyristor ne aka fi amfani da bugun kiran-up irin. Domin kauce wa overloading na cibiyar sadarwa, yi amfani da faranti. A wasu lokuta, baza saka electromagnetic bawul tube irin. A cikin duka, da sarkar iya zama har zuwa biyar capacitors. A kan talakawan, da fitarwa impedance ne kasa da 5.5 ohms. Idan muka yi la'akari da masana'antu RS-485 dubawa tare da galvanic kadaici, akwai aka yi amfani da wani bugun jini extender.

Model a 100 ragowa da biyu

Converter RS-232/485 dubawa na da irin wannan an haɗa na musamman via da transceiver. A wannan yanayin, matsakaicin tsawon na daya kashi bai wuce 1200 nm. A kan talakawan, yanzu amfani siga ne, sunã daidaita da 130 MA. Idan muka yi la'akari da Converter Ethernet musaya RS-485 ba tare da Expanders, sa'an nan ya yi amfani da wani buffer amfilifa.

Na'ura tsara don gama a kalla biyar radiyo. A wannan yanayin, da ƙarfin sigina dogara a kan halin yanzu kayan da aka samar iya aiki. RS-485 dubawa na USB samar da wani dabaru-sifili matakin 200 MV. Ƙima cascade dogara musamman a kan irin transceiver.

Na'urorin 300 ragowa da biyu

Gyare-gyare na irin wannan da aka tsara, a matsayin mai mulkin, a kan goyon bayan da wani fiye da biyar radiyo. Domin rabin-Duplex data musayar na'urar lafiya dace. Alaka abubuwa mafi yawa ta hanyar wani babban amfilifa. A cikin duka, da sarkar ba a amfani da fiye da uku capacitors. A kan talakawan kashe kudi converters da ba fiye da 1 V da microsecond. Expanders ana amfani kawai bugun jini irin. Idan muka yi la'akari da RS-422/485 (da dubawa Converter) domin na USB modem, sa'an nan ya shafi wani electromagnetic bawul tube. Kutse a cikin irin haihuwarka ne kiyaye quite sau da yawa. Ya kamata kuma a lura da cewa dabaru daya matakin, a kan talakawan daidaita 150 MV.

Model 600 ragowa da biyu

Interface Converter RS-485 USB da ake amfani da irin wannan modem igiyoyi. A kalla kashi tsawon a cikin wannan yanayin ne daidai da 1300 nm. Na'ura for Mai kusurwa biyu watsa daga data shige da kyau. A talakawan ji na ƙwarai daga cascade converters ba ya wuce 210 MV. Kashe Rate daidai game da 1.2 zuwa microseconds.

Danganta gyare-gyare iya sanya ta buffer amfilifa ko resistor. Idan muka yi la'akari da farko wani zaɓi a cikin wannan halin da ake ciki ba zai iya yi ba tare da waya thyristor. Yana da muhimmanci a lura da cewa capacitor ne kawai dace to farantin. Idan muka yi la'akari da Converter dubawa RS-485 USB resistors, to, shi yana amfani da electromagnetic bawul tube irin. A wannan yanayin, da fitarwa impedance na tsarin fluctuates kusa 4.6 ohms.

Model 10 radiyo

Converters 10 radiyo suna da wani babban fitarwa impedance siga. Dace da na'urorin na irin wannan mafi for Mai kusurwa biyu watsa bayanai. Siga halin yanzu amfani a kan talakawan daidai to 230 MA. A data kudi ne kasa da 130 ragowa da na biyu. model ne manufa domin sarrafa kansa tsarin.

Kashe kudi sigina daga transducer ba ya wuce 1.3 V a microseconds. Ƙima cascade a cikin wannan yanayin ne kaɗan. Kai tsaye a haɗa na'urorin auku via da daidaitacce resistor irin ko extender. Idan muka yi la'akari da farko embodiment, a cikin wannan harka, ba zai iya yi ba tare da tsauri transceiver. Connections ta cikin yalwatãwa ne kullum muhimmanci ƙara da matakin na ma'ana sifili.

Students 13 radiyo

Converter RS-232/485 radiyo 13 da alaka ta hanyar da shafi. A talakawan halin yanzu amfani da saitunan a kan na'urar ne 120 MA. Don rage haɗarin kutse amfani trimmer. Thyristors ake kullum saita kira na sauri irin.

Kai tsaye shafi amfani da wani amfilifa. Domin rabin-Duplex sadarwa, irin converters ne da dace. A talakawan fitarwa juriya ba su wuce 4.5 ohms. Ƙima cascade a cikin wannan yanayin ne daidai ba fiye da 170 MV.

converters 50mA

RS-485 (dubawa Converter) 50 Ma ne kawai dace da sarrafa kansa tsarin. A rarrabe da model aka dauke su high gudun canja wurin bayanai. Kai tsaye connect da gyare-gyare da za'ayi ta hanyar galvanic kadaici. A wannan yanayin, ji na ƙwarai daga cascade ba mafi girma daga 150 MV. Dabaru matakin sifili ne daidai to 230 MV. Idan muka yi la'akari da na'urar for Mai kusurwa biyu na sadarwa, da suka yi amfani da wani bugun jini extender irin. Bi da bi, da transceiver ne dace kawai tsauri.

Converters 120 MA

RS-485 (dubawa Converter) a 120 MA an haɗa via Duplex transistors. Idan muka yi la'akari da version tare da nuni tsarin, sa'an nan suka yi tsauri transceiver. Domin rabin-Duplex data musayar na'urar lafiya dace. Duk da ikon gama har zuwa goma radiyo. Matsayin mai mulkin, a dabaru daya matakin ne kasa da 130 MV.

A wannan yanayin, da yawan direbobi dangane da ikon da babban amfilifa. Extender ake amfani da yafi turu irin. Matsakaicin tsawon na daya kashi ne daidai da 1300 ns. Ga na'urorin na aiki da tsarin shige da kyau. Kashe kudi siginar yawanci ba ya wuce 1.1 V da microsecond.

rabin-Duplex na'urar irin

RS-485 (dubawa Converter) m na rabin-Duplex-type transistor alaka via coding. Don yin wannan, da thyristor da ake amfani da babban amfilifa. Transceiver ya shafi duka biyu tsauri da kuma filin irin. The fitarwa impedance na kewaye bai wuce 5.4 ohms. A nuna alama na yanzu amfani da wani talakawan daidaita 130 MA. Nuni liyafar data a cikin wannan harka da aka bayar da misali.

canja wurin fayil gudun ba ya wuce 100 ragowa da na biyu. Ji na ƙwarai daga cascade a matakin 230 MV. Yana da muhimmanci a lura da cewa transducer dangane iya zama via podstrochenny extender. A wannan yanayin, da resistor dace daidaitacce irin. Kai tsaye thyristor amfani da sauya sheka amfilifa. A cikin duka, akwai uku kewaye capacitor.

bambanci gyara

A bambanci RS-485 (dubawa Converter) ana amfani na musamman ga na USB modem. Nuni da liyafar data a cikin wannan harka da aka bayar. Ikon converters ta hanyar yusb tashar jiragen ruwa. Mutane da yawa model support "windose 7" da kuma XP. Yanzu amfani kudi ne daidai ba fiye da 190 MA. A dabaru daya matakin ne ba fiye da 90 MV.

Don haɗa da kayan aiki da ake amfani ba kawai capacitors, amma resistors da kuma filin. Dabaru sifili matakin, a matsayin mai mulkin, ba ya wuce 120 MV. Gudun da sigina a irin wannan tsarin shi ne sosai high. Rate ji na ƙwarai daga cascade Converter dubawa RS-485 (RS-232) ne a wani matakin na 170 MV. Kashe kudi ne kasa da 1.2 V da microsecond.

Connection ta hanyar aiki extender

Idan muka yi la'akari da wayoyi ta hanyar da aiki amfilifa, yana da muhimmanci a lura da cewa a halin yanzu amfani darajar kada wuce 200 MA. A farkon da sarkar ne da m akwatin. A thyristor ne kawai amfani ga kamar wata capacitors. Kamar biyu lantarki tsarin da aka bayar. A transistor ne dace kawai code iri. A wannan yanayin, da dabaru daya matakin ba ya wuce 150 MV. Buffer amplifiers domin irin wannan haihuwarka ba su dace. All za a haɗa da inverter ba fiye da shida radiyo.

Single-share fage Converter kuma yalwatãwa

RS-485 dubawa Converter da guda-ƙare Expanders bukatar for modem igiyoyi. Nuni tsarin samun bayanai daga model suna samuwa ga diode irin. A talakawan halin yanzu amfani ne kasa da 230 MA. Dace da na'urorin kawai ga rabin-Duplex data musayar. canja wurin bayanai kudi ba ya wuce 120 ragowa da na biyu.

Yana da muhimmanci a lura da cewa model amfani da su kare tsarin daga high ƙarfin lantarki. Nan da nan na'urar powered by yusb tashar jiragen ruwa. Rate ji na ƙwarai daga cascade, a kan talakawan daidaita 160 MV. Gudun da alama a cikin model ne quite high. A transceiver a lantarki da kadaici ne yawanci amfani da tsauri da irin. Ta yafi amfani da buffer amfilifa. Splitter RS-485 fitarwa impedance ne kasa da 5.8 ohms.

A amfani da bude resistors

Na'urorin da ake yi tare da bude resistors 120 da kuma 200 MA. Direct dangane da aka sanya via da m akwatin. Ikon model aka yi ta hanyar yusb tashar jiragen ruwa. Dace drive rs 485 for rabin-Duplex data sadarwa. Akwati amplifiers ne sosai rare a cikin tsarin irin wannan. Expanders an fi amfani da irin bugun jini. A kan talakawan, a dabaru daya matakin ne daidai ba fiye da 135 MV. Matsakaicin tsawon na daya kashi ne a kusa da 1300 nm.

Amfani da kalaman transceiver

Gyare-gyare ga kalaman radiyo dace duka biyu rabin-Duplex kuma Mai kusurwa biyu sadarwa. The canja wurin bayanai gudun a cikin wannan yanayin ne daidai game da 230 ragowa da na biyu. Total na'urar ne iya goyon bayan game da goma radiyo. A talakawan tsawon na daya kashi bai wuce 1400 nm. Bi da bi, da index ne daidaita da fitarwa juriya 5.1 ohms. kashe kudi a wannan harka dogara ne a kan irin amfilifa.