Long distance Communicating between PICs

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  1. - 2nd January 2008, 14:06 #8
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    koossa
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    I will be using the RS485 Interface and just want to make sure that I'm on the right track (See Attachment)?

    I want to make use of 4 twisted pair cables, 2 for the Serial comms between the stations and 2 for the power (don't know if 12volts is too much?)

    The Base station (Top) will continually ask each station it's status. When it receives a reply or reach a timeout it will move on to the next one.

    The cable length between the stations will be about 20 meter (65ft) and I rather want a reliable connection than a fast one.


    Thank you
    Koossa
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