H3C Technologies H3C S12500 Series Switches - Manual (Page 131)

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Fan status LED
Table 44 Fan status LED description
LED Status Description
FAN (green-red)
Flashing green All the fan trays are operating correctly.
Flashing red One or two fan trays are faulty.
Steady on The MPU is faulty.
Off The MPU is faulty.
Power status LED
Table 45 Power status LED description
MPU LED Status Description
PWR (green-red)
Flashing green All the power frames are operating correctly.
Flashing red One or two power frames are faulty.
Steady on The MPU is faulty.
Off The MPU is faulty.
MPU LEDs
Table 46 MPU LED description
MPU LED Status Description
ACT (green)
Steady on The MPU is in active state.
Off The MPU is in standby state.
RUN (green-red)
Flashing green The MPU is operating correctly.
Flashing red The MPU is faulty.
Steady on The MPU is faulty.
Off The MPU is faulty or not present.
LPU LEDs
An LPU has two types of LEDs: interface LEDs and RUN LEDs.
Interface LEDs
LINK and ACT LEDs
Each interface on the following LPUs has a LINK LED and an ACT LED: