Proper RS-232 is good for at least 1km of cable (and it's simple and cheap)... special line drivers can extend this to 5km... so unless you want a network of multiple master transcievers, RS-485 isn't nescessary.
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Proper RS-232 is good for at least 1km of cable (and it's simple and cheap)... special line drivers can extend this to 5km... so unless you want a network of multiple master transcievers, RS-485 isn't nescessary.
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