- 18 - System Appearance
2-5 Power Supply Unit (PSU) LED
State Description
OFF Indicates no AC power to all power supplies
1Hz Blink GREEN Indicates AC present/ only standby on/ Cold redundant mode
Red
Indicates power supply critical event causing shut down:
failure, OCP, OVP, Fan Fail, UVP
Indicates AC cord unplugged or AC power lost; with a
second power supply in parallel still with AC input power
1Hz Blink Red
Indicates AC cord unplugged or AC power lost; with a
second power supply in parallel still with AC input power.
1Hz Blink Red/Green
Alternative
Indicates power supply warning events where
the power supply continues to operate:
high temp, high power, high current, slow fan.
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