Table 21 LED description
LED Mark Status Description
Power status
LED
PWR
Steady green
The system is going through the power on self
test (POST) or downloading software.
Flashing green (1 Hz)
The system is operating properly.
Steady red
The system has failed to pass the POST or has
detected a serious fault.
Steady yellow (1 Hz)
At least one port has failed the POST or
detected a minor fault.
Off
No AC input is present.
PoE/PoE+
status LED
Mode
Steady green The PoE/PoE+ is operational.
Flashing green (3 Hz)
PoE/PoE+ supply is not available because the
maximum output power of the port is exceeded
or the remaining power is insufficient.
Steady yellow
The ports cannot provide PoE/PoE+ supply due
to an over-temperature, over-voltage, or
under-voltage protection shutdown of the
PoE/PoE+ system.
Flashing yellow (3 Hz)
At least one port has failed to pass the POST. If
the PoE sub-board is in position, it might be
caused by a UART communication failure or
some other self test failure.
Off No PoE/PoE+ supply.