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3 Description of the connections and displays
Connections and displays on the rear panel
1| Power LED
This LED lights blue if the module is supplied with sufficient power, either via the mains
power adapter and DC connection socket or via USB.
2| Power Fail-LED
This LED lights red if the USB power supply falls below a critical value, so the correct
function of the converter can no longer be guaranteed. In this case the converter
switches off.
In this respect we refer to the fact that the quality and length of the USB connecting
cable are of major importance.
In order to restore the converter to a functional state it is necessary to briefly (approx. 5
sec.) disconnect it from the power supply and to reconnect it again.
3| DC connection socket
The module is optionally supplied with voltage via this socket.
4| USB socket
The converter is connected to a computer USB port via this socket.
5| USB Sleep LED
This LED is lit yellow continuously if the USB host (the computer) has disconnected from
the converter. Should this occur frequently, it is advisable to acquire an additional USB
plug-in card for your computer.
This LED may light up briefly when starting the computer or when connecting the
converter with computer.
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