H3C Technologies H3C S12500 Series Switches - Manual (Page 21)

11
LED Status Description
MAJOR
Steady on
• At least one power supply is faulty.
• All power supplies have been removed from the power frame.
• The switch of the power frame is off.
• Power supplies are in position, but no AC power supply is provided.
Turns on and
then goes off
A power supply is being inserted or removed.
Off The power supplies are operating properly.
MINOR Off Reserved
AC power supply
• The AC power supplies are hot-swappable.
• The power supply fans draw in fresh air from the front and exhaust warm air out of the rear.
• Multiple AC power supplies work in N+1 or N+M redundancy and support load balancing.
Figure 11 AC power supply
(1) Power input LED (2) Power output LED (3) Over-temperature alarm LED
(4) Power supply fault LED
Table 4 AC power supply LED description
LED Status Description
Input
Steady on Power is being correctly input.
Off No power is being input.
Flashing Input power exceeds the threshold.
Output
Steady on Power is being correctly output.
Off No power is being output.
Flashing The power output is overloaded.
Service
Steady on
The AC power supply is experiencing an over-temperature
condition.
Off The AC power supply is operating properly.
1
2
3
4