Each AC power
supply unit (PSU) has an illuminated translucent handle that serves
as an indicator to show whether power is present or whether a power
fault has occurred. The AC PSUs must be connected to a Power Distribution
Unit (PDU) or to an electrical outlet. Figure 1. Power supply
indicators
AC PSU status indicator/handle
The PSU indicators provide the following information:
Power Indicator Pattern
Condition
Not lit
Power is not connected.
Green
In standby mode, the handle glows green indicating
that a valid power source is connected to the PSU and that the PSU
is operational.
Flashing amber
Indicates a problem with the PSU.
Flashing green and turns off
When hot-adding a PSU, the PSU handle flashes green
five times then turns off. This indicates a PSU mismatch.
CAUTION: When
correcting a PSU mismatch, replace only the PSU with the flashing
indicator. Swapping the opposite PSU to make a matched pair can result
in an error condition and unexpected system shutdown. To switch to
a new PSU rated output capacity, generation, or input voltage, you
must first power down the chassis before changing the PSU configuration.
CAUTION: AC PSUs support both 220 V and 110 V input voltages. When two identical
PSUs receive different input voltages, they can output different wattages,
and trigger a mismatch.
CAUTION: All
PSUs used must be of the same rated output capacity, generation, and
input voltage.
NOTE: The VRTX chassis supports
only PSUs with a rated capacity of 1100 W or 1600 W.
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