
The Lantronix UBox comes equipped with ten LED lights that report the status of the 
Lantronix hardware. 
Figure 7-3. Position of Status Lights on the UBox 
SYSTEM NETWORK
         1  2  3          1  2  3 
           4           3           2           1 
USB 
The meaning of these lights changes depending on whether the UBox is booting up 
(you have just turned on the UBox), or if it is running. 
The two tables on the following pages show all of the possible states of these LED 
lights and what they mean.  
Note: If you are having problems with your UBox, please use this information 
in conjunction with the information in 7: Troubleshooting to diagnose the 
problem. 
UBox User Guide  58