RS422 and termination resistance

Discussion in 'General Electronics Chat' started by naimidrees, Aug 5, 2012.

  1. naimidrees

    Thread Starter New Member

    Nov 24, 2008
    2
    0
    Hi all,

    I have a query abou rs422 termination resistance. Usually we use 120ohm as termination resistance but attached imaged in the circuit user use 5.1k resistance with capacitor.

    Kindly anybody explain how will it work.

    rs422_1.JPG

    Regards
    Naeem
     
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    It would probably work kinda-sorta. It sounds more like suppression for some specific noise then a termination resistance.

    Keep using the 120 ohm. It's the best way to avoid trouble.
     
  3. naimidrees

    Thread Starter New Member

    Nov 24, 2008
    2
    0
    This circuit using very noise environment like textile.
     
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