1-12
Table 1-9 RPS status LED (for S5120-28C-PWR-EI/S5120-52C-PWR-EI)
LED Status Description
Steady green
The RPS input is normal, and the AC input works
normally.
Steady yellow
The RPS input is normal, but the AC input fails or is not
connected.
RPS
Off The RPS input is abnormal.
Port Mode LED
The port mode LED on the S5120-EI series can display the working status of a port for you to obtain
more device information. You can use the port mode switching button to change the status of the port
mode LED.
Table 1-10 Port mode LED description
LED Status Description
Steady green Indicates port rate.
Flashing green (1 Hz) (supported by
PoE switches only)
Indicates port PoE power supply.
Mode
Steady yellow Indicates port duplex mode.
Seven-Segment LED
The seven-segment LED and the system status LED together indicate the operating status of the
device. For details, refer to
Table 1-11.
Table 1-11 Seven-segment LED description (1)
Status
LED
System status
LED (PWR)
Seven-segment LED
Description
Flashing green
The LED displays the specific numbers
one by one.
POST running. The LED
displays the POST test ID.
Flashing red
The LED flashes the specific numbers.
POST failed. The LED flashes
the POST test ID of the failed
test.
Flashing green
A bar rotates clockwise around the
LED.
Software loading
Unit
Steady red
The LED flashes F.
Fan failure
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