Obi dị anyị ụtọ ịza ajụjụ ọ bụla, biko zitere anyị ajụjụ gị na iwu gị.
RS-485 bụ ọkọlọtọ eletriki naanị. N'adịghị ka ọkọlọtọ interface zuru oke, nke na-akọwa nkọwapụta ọrụ, igwe, na eletriki, RS-485 na-akọwapụta naanị njirimara eletriki nke ndị njikwa na ndị nnata enwere ike iji tinye ahịrị nnyefe multipoint kwesịrị ekwesị. Agbanyeghị, ebumnuche a bụ ka ọkọlọtọ ọkwa dị elu, dịka DL/T645, nke na-akọwa usoro nkwukọrịta, tụnyere ya.
maka mita ike eletrọniki na China, na-akọwapụta RS-485 dị ka ọkọlọtọ oyi akwa anụ ahụ.
1. Ihe na-eguzogide okpomọkụ, ihe na-egbochi ire ọkụ
2. Ọrụ mkpuchi dị mma, arụmọrụ kemịkalụ kwụsiri ike
3. Ọrụ nnyefe dị mma n'ihi ojiji nke polyethylene dị elu maka mkpuchi eriri a kpara akpa
4. Nguzogide dị irè megide nnyonye anya electromagnetic n'ihi ojiji nke ụdị foil aluminom ọhụrụ, ihe mkpuchi okpukpu abụọ nke waya ọla kọpa a kpara akpa.
A na-eji akara RS-485 eme ihe n'ọtụtụ sistemụ kọmputa na akpaaka. N'ime sistemụ kọmputa, SCSI-2 na SCSI-3 nwere ike iji nkọwapụta a mee ihe iji tinye oyi akwa anụ ahụ maka nnyefe data n'etiti onye njikwa na draịvụ diski. A na-eji RS-485 eme ihe maka nkwukọrịta data dị ala na bọs ụgbọ ala ndị njem na ụlọ ụgbọelu azụmahịa. Ọ chọrọ obere waya ma nwee ike ịkekọrịta waya n'etiti ọtụtụ oche, na-ebelata ibu.
| Ụdị NO | SITE NA(MM) | Ogologo (m) | Oke ike iguzogide onye nduzi na 20℃ (Ω/KM) | Nguzogide kacha nta na 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 |




Site n'aka Evelyn si Nepal - 2018.06.03 10:17
Site n'aka Julia si Riyadh - 2017.02.18 15:54 




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