checking powered USB hub

  nobbyhigo 16:34 12 Dec 04

i have a four port powered hub that i need powered when i plugin the adapter lead the 6volt dc light doesnt come on but when the usb lead is connected 4 usb come on along with power light yet when i take out the power lead and leave the main usb lead in the power light goes out
is this right ,or how do i check to see if it is powering up.

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