Ngwaahịa
Ọnụ ego kacha ala maka eriri fiber optic - RS485 gbagọrọ agbagọ, isi abụọ, isi atọ, obi anọ, 20AWG 22AWG 18AWG - AIXTON
Obi dị anyị ụtọ ịza ajụjụ ọ bụla, biko zitere anyị ajụjụ gị na iwu gị.
nkọwa ngwaahịa
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 a na-ezo aka na ọkọlọtọ dị elu, dịka DL/T645, dịka ọmụmaatụ, nke na-akọwa usoro nkwukọrịta maka mita ike eletrọnịkị na China, na-akọwapụta RS-485 dị ka ọkọlọtọ oyi akwa anụ ahụ. Atụmatụ: 1. Ihe na-eguzogide okpomọkụ na ihe na-egbochi ire ọkụ. 2. Ọrụ mkpuchi dị mma na nkwụsi ike kemịkalụ. 3. Ọrụ nnyefe dị mma n'ihi ojiji nke polyethylene dị elu maka nchekwa eriri a kpara akpa. 4. Nguzogide dị irè na nnyonye anya electromagnetic n'ihi ojiji nke ụdị foil aluminom ọhụrụ na ihe mkpuchi ọla kọpa a kpara akpa abụọ. Ngwa: A na-eji akara RS-485 eme ihe na 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 obere ọsọ 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. Paramita Ụdị NO OD(MM) Ogologo (m) Nguzogide kachasị elu nke onye nduzi na 20℃(Ω/KM) Nguzogide kacha nta nke onye nduzi 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 Foto