This might be a good starting point;

http://www.lvr.com/parport.htm

Mike Jones

----- Original Message -----
From: "john chung" <johnc@XYBASE.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, May 06, 2003 7:34 PM
Subject: [EE]: Looking for PC port output info


> Hi all,
>
>      Can you please provide a link or etc to determine what is the
electrical characteristic requirement for the
> serial,parallel and usb port for today's PC. I am especially interested in
the max. ampere the line can provide for all 3 ports and their voltage too.
>
>     Thanks for your time and help.
>
> John
>
> --
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