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DELL N3000 User Manual

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Hardware Overview
System LEDs
The system LEDs, located on the back panel, provide information about the 
power supplies, thermal conditions, and diagnostics.
Table 3-21 shows the System LED definitions for the N3000 series switches.
Table 3-12. Console Port LED Definitions
LED
Color Definition
Link/SPD LED Off
There is no link.
Solid green
A link is present.
Table 3-13. System LED Definitions
LED
Color Definition
Status
Solid green
Normal operation.
Blinking green
The switch is booting
Solid red
A critical system error has occurred.
Blinking red
A noncritical system error occurred (fan or power 
supply failure).
Power 1,
Power 2
Off
There is no power or the switch has experienced a 
power failure.
Solid green
Power to the switch is on.
Blinking green
The switch locator function is enabled.
Fan
Solid green
The fan is powered and is operating at the expected 
RPM.
Solid red
A fan failure has occurred.
Stack 
master
Off
The switch is in stand-alone mode.
Solid green
The switch is master for the stack.
Temp
Solid green
The switch is operating below the threshold 
temperature.
Solid red
The switch temperature exceeds the threshold of 75°C.
Stack No. –
Switch ID within the stack.