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rs 232 signal safe for computer?

Discussion in 'Electronic Basics' started by Maddy, Apr 24, 2005.

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  1. Maddy

    Maddy Guest

    I have a system giving an RS 232 output with logical 0 at +15V and
    logical 1 at -15V. Is this signal safe to connect to the serial port
    of a computer? If not how do I use this for a computer input? and to
    which pin should I connect it. Please Help! Urgent! Thanks
     
  2. Andrew Holme

    Andrew Holme Guest

    Your PC serial port is designed to accept voltages which meet the RS232
    specification.

    Try Googling for keywords like:

    RS232 min max voltage
    RS232 pc serial port pinout

    You will find hundreds of sites answering your question.
     
  3. Lord Garth

    Lord Garth Guest

    The short answer is yes, it is safe.

    The longer answer is not to experiment on ports you can't fix like the ports
    integrated
    into you laptop or motherboard.
     
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