Hello @rodinardavani ,
You should access the UC520 on the console - blue port on the left side of the box - using a cisco console cable and a terminal software on your PC. I would try the standard settings for the cisco console port - 9600, 8, N, 1.
Hit enter a few times and if you get the device prompt - something similar to:
Router>
enter the following command: show ip interface brief
The output should tell you what IP addresses are assigned to the interfaces.
Hope this helps.
Regards, LG
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