RS-485 , , , "", : Data+ Data- (. 2.1). "" , -7...+12 [RS -TIA].
, .. Data+ Data-. 200 , +12 , , -200 , -7 - . 1,5 , 200 ( ) 1,3 200 . . , (1200 ) ( 100 /).
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. 2.1. RS-485 |
D (D - "Driver") RS-485 "" () (Driver Enable) (. 2.1). . , , . . 2.1 , - , , . . , .
RTS (Request To Send) -.