H3C Technologies H3C S7500E Series Switches User Manual
Page 148

137
LED Status
Meaning
Analysis
Red
A power input problem
occurs.
The input voltage is not in the rated voltage range.
Off
No power is input.
This status occurs in the following cases:
•
The power module is faulty.
•
A system input power cable connection problem
occurs.
•
The external power supply is unavailable.
OUTPUT
Green
The power is output
correctly.
N/A
Red
A power output problem
occurs.
This status occurs in the following cases:
•
The power module generates an alarm due to
input under-voltage, output short-circuit, output
over-current, output over-voltage, or over
temperature, and enters the protection state.
•
The system power switch is not turned on.
Off
No power is output.
This status occurs in the following cases:
•
The power module is faulty.
•
A system input power cable connection problem
occurs.
•
The external power supply is unavailable.
FAN
Green
The fans are operating
correctly.
N/A
Red
The fans are operating
abnormally.
This status occurs in the following cases:
•
A fan failure occurs.
•
The system power switch is not turned on.
Off
The fans do not work.
This status occurs in the following cases:
•
The power module is faulty.
•
A system input power cable connection problem
occurs.
•
The external power supply is unavailable.
PoE INPUT
Green
The PoE power is input
correctly.
N/A
Red
A PoE power input
problem occurs.
The PoE input voltage is not in the rated voltage
range.
Off
No PoE power is input.
This status occurs in the following cases:
•
The power module is faulty.
•
A PoE input power cable connection problem
occurs.
•
The external power supply is unavailable.
PoE OUTPUT
Green
The PoE power is output
correctly.
N/A