Kayayyaki
Mafi ƙarancin farashi don kebul na Fiber Optic - RS485 mai jujjuyawa 2 tushe 3 tushe 4 zuciya 20AWG 22AWG 18AWG - AIXTON
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cikakken bayani game da samfurin
RS-485 ma'auni ne na lantarki kawai. Ba kamar cikakkun ƙa'idodin haɗin gwiwa ba, waɗanda ke bayyana ƙayyadaddun ayyuka, na inji, da na lantarki, RS-485 yana bayyana halayen lantarki na masu sarrafawa da masu karɓa waɗanda za a iya amfani da su don aiwatar da layin watsawa mai maki da yawa daidaitacce. Duk da haka, an yi nufin a yi amfani da wannan ma'auni ta hanyar manyan matakan, kamar DL/T645, misali, wanda ke bayyana yarjejeniyar sadarwa don mita makamashin lantarki a China, yana ƙayyade RS-485 a matsayin ma'aunin Layer na zahiri. Siffofi: 1. Mai jure zafi da hana harshen wuta. 2. Kyakkyawan aikin kariya da kwanciyar hankali na sinadarai. 3. Kyakkyawan aikin watsawa saboda amfani da polyethylene mai inganci don kariyar kebul. 4. Ingancin juriya ga tsangwama na lantarki saboda amfani da sabon nau'in foil na aluminum da kariyar raga tagulla mai layuka biyu. Aikace-aikace: Ana amfani da siginar RS-485 a cikin tsarin kwamfuta da atomatik iri-iri. A cikin tsarin kwamfuta, SCSI-2 da SCSI-3 na iya amfani da wannan ƙayyadaddun bayanai don aiwatar da matakin zahiri don watsa bayanai tsakanin mai sarrafawa da faifai. Ana amfani da RS-485 don sadarwa bayanai masu ƙarancin sauri a cikin motocin bas na motocin fasinja a cikin ɗakunan jiragen sama na kasuwanci. Yana buƙatar ƙaramin kebul kuma yana iya raba kebul tsakanin kujeru da yawa, yana rage nauyi. Sigogi Samfurin NO OD(MM) Tsawon (m) Matsakaicin juriyar jagora a 20℃(Ω/KM) Mafi ƙarancin juriyar jagora a 70℃(Ω/KM) RS-485 2*0.5 5.5 100/200 39 0.012 RS-485 2*0.75 6.0 100/200 26 0.010 RS-485 2*1.0 6.6 100/200 19.5 0.010 RS-485 2*1.5 7.5 100/200 13.3 0.009 RS-485 2*2.5 8.7 100/200 7.98 0.008 RS-485 3*0.5 5.8 100/200 39 0.012 RS-485 3*0.75 6.3 100/200 26 0.010 Hotuna