. - , , . , - . - () , . , . , , . .
RS-485
RS-485 . (1 OSI). , RS-485, , . RS-485 () . , ( A) , ( B) . , 1, 0 . , : 1 , 0 . .
RS-485 - . . , .
D (driver) - ;R (receiver) - ;DI (driver input) - ;RO (receiver output) - ;DE (driver enable) - ;RE (receiver enable) - ;
A - /;B - /;Y - (RS-422);Z - (RS-422).
RS-485
RS-485 .
: 32 , 256 . , . RS-485 . , Master-Slave. . , , . Master-Slave . ,, . , (Slave). . , , . , , , , .