H3C Technologies H3C S7500E Series Switches - Manual (Page 151)

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LED Status Meaning Analysis
PoE FAN
Green
The PoE fans are
operating correctly.
N/A
Red
The PoE fans are
operating abnormally.
This status occurs in the following cases:
• A PoE fan failure occurs.
• The PoE power switch is not turned on.
Off No PoE power is input.
This status occurs in the following cases:
• The power module is faulty.
• An input power cable connection problem occurs to
PoE1, PoE2, and PoE3.
• The external power supply is unavailable.