EonStor DS S12/S16/S24 Series Hardware Manual
4.4 PSU LED
The PSU (Power Supply Unit) contains the LED indicators for the PSU itself and the
cooling module. When either of the unit fails, you need to replace the PSU. For
details, see 5.4 Replacing the Power Supply Module.
4.4.1 S12x-Rxxx Models and S16 RAID Power Supply Unit LED
PSU LED
Status Description
Flashing (Green)
The system is connected to power supply but the power
switch has not turned on.
On (Green)
The PSU is operating normally.
On (Red)
The PSU has failed and is unable to provide power to the
subsystem.
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