LEDs

Switch Chassis LEDs

The BCN, STS, and ENV, LEDs are located on the left side of the front of the switch. The port LEDs appear as triangles pointing up or down to the nearest port.

LED

Color

Status

BCN

Flashing blue

The operator has activated this LED to identify this switch in the chassis.

Off

This switch is not being identified.

STS

Green

The switch is operational.

Flashing amber

The switch is booting up.

Amber

Temperature exceeds the minor alarm threshold.

Red

Temperature exceeds the major alarm threshold.

Off

The switch is not receiving power.

ENV

Green

Fans and power supply modules are operational.

Amber

At least one fan or power supply module is not operating.

(port)

Green

Port admin state is 'Enabled', SFP is present and the interface is connected (that is, cabled, and the link is up).

Amber

Port admin state is 'Disabled, or the SFP is absent, or both.

Off

Port admin state is 'Enabled' and SFP is present, but interface is not connected.

(SYNC)

Green

The frequency are synchronized to external interface. The external interface could be GPS, Recovered RX clk).

Amber

Freerun/Holdover - Time core is in freerun or holdover mode.

Off

Time core clock synchronization is disabled.

(TIMING)

Green

The time, phase are synchronized to external interface. The external interface could be (GPS, FP).

Amber

Freerun/Holdover - Time core is in freerun or holdover mode.

Off

Time core clock synchronization is disabled.

(GNSS)

Green

GPS interface provisioned and ports are turned on. ToD, 1PPS, 10MHz are all valid.

Off

Either the interface is not provisioned, or the ports are not turned on. ToD, 1PPS, 10MHz are not valid.

Fan Module LEDs

The fan module status LED is located below the air holes on the front of the fan module. Every fan module has an LED.

LED Color Status

Status

Green

The fan module is operational.

Red

The fan module is not operational (fan is probably not functional).

Off

Fan module is not receiving power.

Power Supply LEDs

The power supply LEDs are located on the right portion of the power supply. Combinations of states indicated by the OK and Fault LEDs signify the status for the module as shown in this table.

OK LED

FAIL or FAIL/ID LED

Status

Green

Off

Power supply is on and outputting power to the switch.

Flashing green

Off

Power supply is connected to a power source but not outputting power to the switch. The power supply may not be properly installed in the chassis.

Off

Off

Either all the installed power supplies are not receiving power or an uninstalled power supply is not receiving power.

Off

Flashing amber

Power supply is operating but a warning condition has occurred—possibly one of these conditions:

  • High temperature

  • High power

  • Slow power supply fan

  • Low voltage

  • Power supply is installed in the chassis but was disconnected from the power source.

Off

Flashing amber (10 seconds) then amber

Power supply is installed without a connection to a power source.

Off

Amber

Power supply failure—possibly one of these conditions:

  • Over voltage

  • Over current

  • Over temperature

  • Power supply fan failure