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The ground and voltage pins on a USB connector are slightly longer than
the data pins, so that as you insert the USB connector into the
computer's socket, stable voltage is available before the data pins
connect. So, it's supposed to be completely hot-pluggable. Similar to
a computer that powers up, but only activates its circuitry when the
power supply's "power good" line indicates everything is ready to go.<br>
<br>
--Bob (who just read Andrew Kohlsmith's treatise on USB
hot-pluggability, and is reconsidering the whole idea of posting this
message)<br>
<br>
<br>
<br>
Charles M wrote:
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cite="mid:5a7bd1ae1001210603p3019c8cbme30ca7f31d1b9999@mail.gmail.com"
type="cite">
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<pre wrap="">So it's the order. Turn on, plug in, no go. Plug in, turn on, works.
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<pre wrap=""><!---->
Glenn's question reminded me of one of my own. While USB drives are
suppose to be plug and play, it seems to me a bad idea to be putting
anything in the USB port that already has electricity going to it.
It's almost like pulling memory out without unplugging the system
unit, it may not appear to hurt the system, but the system still has
electricity running through it, and damage could be done...
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