H3C Technologies H3C S7500E Series Switches - 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