Power Indicator Codes - Dell PowerEdge R420xr Owner's Manual

Indicator Indicator Code
Link indicator is The NIC is connected to a valid network at less than its maximum port speed.
amber
Activity indicator is Network data is being sent or received.
blinking green

Power Indicator Codes

Each power supply has an illuminated translucent handle that serves as an indicator to show whether
power is present or whether a power fault has occurred.
Figure 6. Power Supply Status Indicator
1. power supply status indicator/handle
Power Indicator Condition
Pattern
Not lit Power is not connected.
Green The handle indicator lights green indicating that a valid power source is connected
to the power supply and that the power supply is operational.
Flashing amber Indicates a problem with the power supply.
Flashing green When hot-adding a power supply, this indicates that the power supply is
mismatched with the other power supply (in terms of efficiency, feature set, health
CAUTION: When correcting a power supply mismatch, replace only the
power supply with the flashing indicator. Swapping the opposite power
supply to make a matched pair can result in an error condition and
unexpected system shutdown. To change from a High Output configuration
to a Low Output configuration or vice versa, you must power down the
system.
CAUTION: AC power supplies support both 220 V and 110 V input voltages.
When two identical power supplies receive different input voltages, they can
output different wattages, and trigger a mismatch.
CAUTION: If two power supplies are used, they must be of the same type
and have the same maximum output power.
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