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.

(GPS)

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

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.
Table 1. Power Supply LEDs

LEDs

 Status

Off

The power supply is not functioning due to lack of input or output power. The input voltage is below the acceptable operating range. There is no 12 V standby from a parallel power supply unit.

Solid Amber

Failure (no output) or one of these possible conditions:

  • AC input below operating range, but 12V standby power is being supplied from a parallel power supply unit,

  • Over voltage,

  • Over current,

  • Over temperature, or

  • OTP due to fan failure.

Blinking Amber (1 Hz)

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

  • High temperature,

  • High power, or

  • Slow fan.

Blinking Green (2 Hz)

 Input is present and its voltage is within the operating range. The power supply is in standby mode due to PSON_L=High.

Blinking Green (1 Hz)

The power supply is Bootloading (startup mode).

Note

 

This applies only to NXA-PDC-2KW-PI and NXA-PDC-2KW-PE power supplies.

Solid Green

The power supply provides a regulated 12 V main output and a 12 V standby output.