If not, a defect in the interface is possible. In that case it has
to be inspected by qualified service personnel.
4.
After connecting the device, the yellow or green LED goes
out:
! disconnect the cable immediately !
This could be an overload of the USB-GT interface. Check the
current load of the connected devices.
Any device with a current load greater than 250 mA (Model
USB-GT-H, USB-GT-N greater than 1000 mA and Model USB-
GT-D >100 mA) should not be connected, if it doesn’t have its
own power supply.
Any device with a current load greater than 2 A (Model USB-
GT-MED-N and USB-GT-MED-D) should not be connected, if it
doesn’t have its own power supply.
