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()-LS, ()-HF

 -LS RS-485 - ()-LS N×2×0,78 ()-HF N×2×0,78

: (, . )

, RS-485 / 8482, TIA/EIA-485-A. . ()-LS 1.8.2.2.2 53315-2009. ()-HF 1.8.1.2.1. . ()-LS . . 22.1.12–2005 3, . .




0,78 (7×0,26 ) () , 88-92%. . , - (()-LS) (()-HF). 0,3 .



20 C, , /1005,9
  20 C N=1; 2; 3; 4, , /1001,00; 0,59; 0,51; 0,40
, , %3
  1 , 120 12
, , /42
, , , /71
1 , , /1001,65


  , N , , . , 1 , , , ,
()-LS()-HF
18,2123,0106,9 50 ÷ 70 60 ÷ 70 30
1,58,9133,5 116,8
212,1 181,5175,4
3 12,8 192,0195,0
4 13,5 202,5 217,0
516,0240,0270,1
617,2258,0303,8
717,2258,0315,7
818,5277,5329,6
920,3304,5395,4
1021,6324,0430,6

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