H3C Technologies H3C S5820X Series Switches - Manual (Page 21)

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System status LED
The system status LED shows the operating status of the switch.
Table 8 System status LED description
LED mark Status Description
SYS
Steady green The switch is operating correctly.
Flashing green (1 Hz) The switch is performing power-on self test (POST).
Steady red POST has failed.
Flashing yellow (1 Hz) Some ports have failed to pass POST.
Off The switch is powered off.
Power module status LEDs
The S5820X-28S and S5820X-28C switches have one status LED for each power module slot to show the
availability and operating status of the hot swappable power modules in the slots.
Table 9 Power module status LED description
LED mark Status Description
PWR1
Steady green
A power module is installed in power module slot 1, and the power
output is normal.
Steady yellow
A power module is installed in power module slot 1, but the power
module has an output problem.
Off
No power module is installed in power module slot 1, or no power
is being input.
PWR2
Steady green
A power module is installed in power module slot 2, and the power
output is normal.
Steady yellow
A power module is installed in power module slot 2, but the power
module has an output problem.
Off
No power module is installed in power module slot 2, or no power
is input.
Seven-segment LED
The seven-segment LED, together with the system status LED, shows detailed system operating
information.