RS485

  • Thread starter Thread starter Erik Janssen
  • Start date Start date
E

Erik Janssen

Hello,
I need to connect some units with RS485 and in the user guide I have found
the following text regarding the cable to use:
"Wire gauge size is thicker than AWG #22 (0.33 mm2)."
I wonder what "AWG" is, is this a kind of a cable or specification?

Best Regards
E
 
AWG = American Wire Gauge, and RS485 should use twisted pair cable. Each
end should be terminated with a 120 ohm resistor (not each node, each end).

Tom Woodrow
 
Hello,
If I understand correctly, what I need is twisted pair cable with a minimum
size of 0.33mm2?

Best Regards
E
 
Erik said:
I need to connect some units with RS485 and in the user guide I
have found the following text regarding the cable to use:
"Wire gauge size is thicker than AWG #22 (0.33 mm2)."
I wonder what "AWG" is, is this a kind of a cable or
specification?
Click to expand...

American Wire Gauge. That sounds like a fairly large wire size to
use, I would expect 24 or even 26 to be adequate for the purpose.
 
Depends on the total length of the run.
American Wire Gauge. That sounds like a fairly large wire size to
use, I would expect 24 or even 26 to be adequate for the purpose.
Click to expand...
 
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