Operation

3.1.1Power Supply/Cooling Module LEDs

The Power Supply/Cooling module incorporates 4 LEDs, located below the On/Off switch and shown in tablecap.

Under Normal conditions the LEDs should all be illuminated constant GREEN

If a problem is detected the color of the relevant LED will change to AMBER.

Table 3–1

PSU LEDs

AC PSU

PSU Good

Green

 

 

AC input Fail

Amber

 

 

Fan Fault

Amber

 

 

DC Output

Amber

Fail

 

 

 

34

IBM System Storage DCS9550 1S1 Storage Expansion Unit Installation, Service, and User Guide

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Image 49
IBM DCS9550 1S1 manual Power Supply/Cooling Module LEDs, Ac Psu