Computer Interfacing
Discussions about interfacing and electronics

can i use rs485 protocol with 440 volt cacle ???


       Computer Interfacing Forum Index -> RS422 and RS485
Author Message

Sep 28, 2011 9:19 am

i want to control devices using rs485 protocol, but there are two line 440 volt ac pass in the same package with my to data line transfer for RS485. is this high voltage will make noise, i need your help Smile Wink
New User

Joined: 30 Sep 2011
Posts: 1
Location: Denmark

Sep 30, 2011 2:45 pm

What you are doing is far from the best solution, but with proper termination in each end (120 ohm resistor between D+ and D-) you have achieved a lot.

Oct 08, 2011 3:30 am

how abut at 240 volts line-to -line ?

       Computer Interfacing Forum Index -> RS422 and RS485
Page 1 of 1

Running on php BB © 2001, 2009 php BB Group
   Lammert Bies     Interfacing     Sitemap     Forum