Model:
! Important !
USB-GT H
Any device with a current load greater than 1
A
should not be connected if it doesn’t have its own
power supply.
USB-GT N
Any device with a current load greater than 1
A
should not be connected if it doesn’t have its own
power supply.
USB-GT-MED-D
Any device with a current load greater than
250 mA should not be connected if it doesn’t
have its own power supply.
USB-GT-MED-N
Any device with a current load greater than
250
mA should not be connected if it doesn’t
have its own power supply.
1.4 USB mode
The USB-GT interface allows a data transfer according to LOW-
speed- and FULL-speed-modes (USB 1.1 standard). Devices oper-
ating with HIGH-speed-mode (USB 2.0 standard) will also work, but
the transfer will operate in the lower FULL-speed-mode.
1.5 Connections
The USB-GT interface has two USB connectors. The host is con-
nected to the USB-B-port and the device to the USB-A-port (see
installation).
An internal DC/DC-inverter supplies the secondary part of the cir-
cuit and therefore the connected device with power electricity.
Model:
USB-GT (-D)
An external power supply is not required for the
standard USB_GT interface. An internal DC/DC-in-
verter supplies the secondary part of the circuit
and therefore the connected device with max.
100 mA.
USB-GT H
USB-GT N
An external power supply is not required for the
USB-GT N interface. It supplies the secondary
part of the circuit and therefore the connected
device with max. 1 A.
