Dell PowerEdge R900 - Manual (Page 21)

About Your System 21
Figure 1-4. Redundant Power Supply Indicators
1 power supply status 2 power supply fault
3 AC line status
Table 1-3. Redundant Power Supply Indicators
Indicator Function
Power supply status Green indicates that the power supply is
operational.
Power supply fault Amber indicates a problem with the power supply.
AC line status Green indicates that a valid AC source is connected
to the power supply.
1
2 3