[comp.sys.sun] Any way to SAFELY power low-power +12 volt devices from serial port?

tomk@attctc.dallas.tx.us (Tom Karches) (02/15/90)

Is there any way to draw 12 volts at low current levels from a Sun serial
port?  On the Macintosh RS-422 serial ports, this can be done, even though
Apple does not recommend it.  I fully understand the problems that this
could cause if not done carefully and correctly; i.e. don't flame me for
asking.

Thanks in advance,

Tom Karches

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