Waan ku faraxsanahay inaan ka jawaabno su'aalo kasta, fadlan noo soo dir su'aalahaaga iyo dalabaadkaaga.
RS-485 waa halbeeg koronto oo keliya. Si ka duwan heerarka is-dhexgalka oo dhammaystiran, kuwaas oo qeexaya qeexitaannada shaqada, farsamada, iyo korontada, RS-485 waxay qeexdaa oo keliya astaamaha korantada ee kontaroolayaasha iyo qaataha loo isticmaali karo in lagu hirgeliyo xariiq gudbin oo dheellitiran oo dhinacyo badan leh. Si kastaba ha ahaatee, heerkan waxaa loogu talagalay in lagu tixraaco heerarka heerka sare, sida DL/T645, kaas oo qeexaya hab-maamuuska isgaarsiinta.
mitirrada tamarta elektaroonigga ah ee Shiinaha, iyadoo qeexaysa RS-485 heerka lakabka jireed.
1. Kuleylka u adkaysta, ololkana u adkaysta
2. Waxqabadka dahaarka oo aad u fiican, waxqabadka kiimikada oo deggan
3. Waxqabad gudbin oo aad u fiican sababtoo ah isticmaalka polyethylene tayo sare leh oo loogu talagalay ilaalinta fiilooyinka tidcan
4. Iska caabin wax ku ool ah oo ku wajahan faragelinta elektromagnetic-ka sababtoo ah isticmaalka nooc cusub oo bir ah oo aluminium ah, gaashaan laba lakab ah oo shabag naxaas ah oo tidcan.
Calaamadaha RS-485 waxaa loo isticmaalaa nidaamyo badan oo kombiyuutar iyo otomaatig ah. Nidaamka kombiyuutarka, SCSI-2 iyo SCSI-3 waxay u isticmaali karaan qeexitaankan si ay u hirgeliyaan lakabka jireed ee gudbinta xogta ee u dhexeeya koontaroolaha iyo darawalka diskka. RS-485 waxaa loo isticmaalaa isgaarsiinta xogta xawaaraha hoose ee basaska baabuurta rakaabka ee qolalka diyaaradaha ganacsiga. Waxay u baahan tahay fiilo yar waxayna wadaagi kartaa fiilo kuraas badan, taasoo yareyneysa miisaanka.
| Nooca MAYA | LAGA BILAABO (MM) | Dhererka (m) | Iska caabbinta ugu badan ee kaarijka 20℃ (Ω/KM) | Iska caabinta ugu yar ee kaarijka 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 |




Qore: Mike oo ka yimid Nairobi - 2017.04.28 15:45
Waxaa qortay Marian oo ka timid Fiyatnaam - 2017.12.19 11:10 




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