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Table 16 Seven-segment LED description (1)
LED
Status
Description
System status LED
(PWR/SYS)
Seven-segment LED
Unit
Flashing green
The LED displays numbers one by one.
POST is running, and the
LED displays the ongoing
test item ID.
Flashing red
The LED displays flashing numbers.
POST has failed, and the
LED flashes the ID of the
failed test item.
Flashing green
A bar rotates clockwise around the LED.
Software is loading.
Steady red
The LED displays a flashing F character.
The switch is experiencing
a fan failure.
Steady red
The LED displays a flashing t character.
The switch is in an
over-temperature
condition.
Steady green
The LED displays a capital C character.
The switch is the
command switch in a
cluster.
The LED displays an S character.
The switch is a member
switch in a cluster.
The LED displays a lowercase c character.
The switch is a candidate
switch for a cluster.
The LED displays a number.
The numbers that can be displayed vary
depending on the switch software version.
The member ID of the
switch in an Intelligent
Resilient Framework (IRF).
The S5120-24P-EI and
S5120-48P-EI do not
support IRF.
The seven-segment LED, the system status LED, and the port mode LED on the S5120-28C-PWR-EI or
S5120-52C-PWR-EI that supports PoE can display the PoE power consumption percentage of the switch.
For relevant information, see Table 17.
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