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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).



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
17,373,0 64,2 50 ÷ 70 60 ÷ 7030
1,58,181,073,7
2 10,6 106,0117,6
3 11,3 113,0130,8
4 12,0120,0150,1
514,6146,0192,2
615,9159,0216,8
715,9159,0228,6
817,1171,0256,3
919,0190,0292,1
1020,2202,0318,6

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