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What are the voltage levels of control pins in RS232 connector?

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Sibtain

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hello
i just have a simple question .the question is that the tx and rx of serial port have -9 to +9 voltage levels but what are the voltage levels of dcd,rts and other control pins in the rs 232 connector
bye
 

IanP

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Re: serial voltage

They're all the same ..

Regards,
IanP
 

segmex

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serial voltage

is it possible for high voltages???
 

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