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.

(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.

Solid green

Power supply is on and outputting power to the switch - 12 V from main PSU and 12 V from standby unit in regulation.

2 Hz blinking green

AC and DC input is present and within operating range / Standby mode (PSON_L=High).

1 Hz blinking green

Solid amber

Power supply Failure (No output – the PSU is not providing power to the switch) or one of these possible conditions:

• AC and DC input is below operating range, but there is 12 V standby from a parallel unit,

• Over voltage,

• Over current,

• Over temperature, or

• OTP due to fan failure.

1 Hz blinking amber

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

• High temperature,

• High power, or

• Slow fan

Off

No output or AC and DC input is below operating range; there is no 12 V standby from a parallel unit.