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Thread: Low cap wire.

  1. #1
    Join Date
    Aug 2008
    Posts
    540

    Low cap wire.

    does someone have information as to why low cap wire is preferred for rs-232/485 data? something in print would be apreciated.

  2. #2
    Join Date
    Aug 2009
    Posts
    2,459
    The higher the capacitance, the harder it is to drive the wire from one voltage level to another. This leads to issues at higher baud rates and on networks that have a lot of controllers.

    Some more reading if you want to know more: http://www.quabbin.com/page764.html

  3. #3
    Join Date
    Jul 2005
    Location
    Pittsburgh, PA
    Posts
    258
    Contact ALPS Controls.com and look up or ask for part number ARC156. That is the low cap wire that we use for ALC 156K baud networking. They have it available from 2 different vendors.
    HotRod


    Controls..some days your a hero, some days your a zero. Direct acting since 1992.

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