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Biasing Resistor for RS485

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(@kkong)
Posts: 12
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Topic starter
 

Any biasing resistors required for RS485 communications over long distance?

 
Posted : 17/08/2015 8:23 pm
(@csearcy)
Posts: 66
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250ohm between A and B. Sometimes... a 470ohm pull-down is required from B to Signal GND.

 
Posted : 17/08/2015 8:28 pm
(@kkong)
Posts: 12
Active Member Guest
Topic starter
 

Noted, Thanks.

 
Posted : 18/08/2015 3:48 pm
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