Jameco Electronics 527822 - Manual (Page 6)

LED Indicator
Power Indicator
The Power Indicator will turn ON when bus power is supplied.
USB Indicators
There are four USB indicators to show if the USB Downstream Ports are ready for
use.
1. If the USB 2.0 DOCK is not ready for use, the USB Indicators will turn OFF,
and the USB Downstream Ports cannot be used.
2. If the USB 2.0 DOCK is ready for use, the USB Indicators will turn ON, and
you can use all the functions of the USB 2.0 DOCK.
3. If over-current happens for certain USB Downstream Ports, the corresponding
USB Indicator will turn OFF to indicate that this port is not working now.
4. When over-current situation is resolved, the USB Indicator will turn ON
again.
Figure 2
USB 2.0 DOCK User’s Manual
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