Depends on the total length of the run.

CBFalconer wrote:
Erik Janssen wrote:

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?


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.