Hardware Overview 99

System LEDs

The system LEDs, located on the back panel, provide information about the power supplies, thermal conditions, and diagnostics.Table3-21 shows the System LED definitions for the N2000 series switches.
Table 3-3. Console Port LED Definitions
LED Color Definition
Link/SPD LED Off There is no link.
Solid green A link is present.
Table 3-4. 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 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.
RPS (on
non-PoE
switches)
Off There is no redundant power supply (RPS).
Solid green Power to the RPS is on.
Solid red An RPS is detected but it is not receiving power.
EPS (on
PoE
switches)
Off There is no external power supply (EPS).
Solid green Power to the EPS is on.
Solid red An EPS is detected but it is not receiving power.
Fan Solid green The fan is powered and is operating at the expected
RPM.
Solid red A fan failure has occurred.