Power on USB Port

Power discussions, CPU and case temperature
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boaz2
Posts: 6
Joined: Sat Nov 19, 2011 7:36 am

Power on USB Port

Post by boaz2 »

are there different limits to the power usage on each usb port?

what is the maximum power current available from the ports?

can one port drain power from another?


oldtimer
Posts: 2
Joined: Mon Jul 04, 2011 10:41 pm

Re: Power on USB Port (other questions)

Post by oldtimer »

I believe USB gets 5 vdc, and I'm told it stays on when fit-pc2 is off.
I guess that means a voltage converter stays on. Is it possible to
change settings so that is off when computer is off? I think there
is RF noise on the 5vdc from the voltage converter. Is it the same situation
on fit-pc3?

irads

Re: Power on USB Port

Post by irads »

It is not possible to power down the 5V on fit-PC2 USB in off-state. In ordered shutdown USB devices are signaled to turn-off.

In fit-PC3 USB is powered-off in off-state.

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