3
LED Indicators
The DUB-H4 features five LED indicators…
§ The Power LED indicator is red and lights up when the DUB-H4 is
powered on by using the external power adapter. The DUB-H4 does
not run on power supplied from the computer (bus powered).
§ The downstream LED indicators are green. Each port has one status
LED. The LED lights to indicate that the port is working.
§ If a port becomes overloaded, a “current exceeded” event will take
place. The LED of the port will go off and the message “USB HUB
Current Limit Exceeded” appears on the monitor. Reset the DUB-H4
by disconnecting it for 5 seconds and then powering it back on by
connecting the AC power adapter.
LED Color Indicator
Power Red Power is on
Power Off Power is off
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