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Overview and specifications
11
User panel
The R220 includes a user panel that can be used for monitoring, diagnostics and debugging.
The user panel is located in the lower right corner of the front of the chassis, as shown in
LEDs and buttons
The user panel contains various LED lights and two buttons.
Figure 4. LED lights on the user panel
Alarm mute button
System reset button
Critical system fault LED
Major system fault LED
Minor system fault LED
User-defined Telco LED
HDD activity LED
System ID LED
Out of service LED
Ethernet A status LED
Ethernet B status LED
Power button and power LED