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Message

Re: PC COM Ports

2005-12-14 by Don Kinzer

--- In AVR-Chat@yahoogroups.com, John Samperi <samperi@a...> wrote:
> + - 25V being the 'right' voltage :-)

I believe that the standard specifies the following:
mark: -3 to -25 volts
space: +3 to +25 volts

The range between -3 and +3 is indeterminate.

Don
http://www.zbasic.net

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