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Replacing Components
You can replace a power supply with another supported power supply that has the same power source type
(AC, DC, HVAC, or HVDC) and the same wattage rating as the other installed power supply. Additionally,
the airflow direction of the power supply must match or conform to the airflow direction of the installed fan
modules. For the airflow direction used by the switch, see the coloring of the fan modules. The following list
describes the power supplies supported by this switch.
• NXA-PAC-650W-PE (650-W, port-side exhaust (blue latch) power supply requiring an AC power
• NXA-PAC-650W-PI (650-W, port-side intake (burgundy latch) power supply requiring an AC power
• N9K-PUV-1200W (1200-W, dual-direction (white latch) high-voltage AC/DC power supply requiring
• UCS-PSU-6332-DC (930-W, port-side exhaust (blue latch) power supply requiring DC power source)
• UCSC-PSU-930WDC (930-W, port-side intake (burgundy latch) power supply requiring DC power
• NXA-PDC-930W-PE (930-W, port-side exhaust (blue latch) power supply requiring DC power source)
• NXA-PDC-930W-PI (930-W, port-side intake (burgundy latch) power supply requiring DC power
Replacing an AC Power Supply
You can replace an AC power supply during operations so long as the other power supply provides to the
switch.
Before You Begin
• The replacement power supply must have the same wattage and airflow direction as the power supply
• An AC power source must be within reach of the power cable that will be used with the replacement
• There must be an earth ground connection to the chassis that you are installing the replacement module.
Step 1
Remove an AC power supply as follows:
source)
source)
a high-voltage AC or DC power source)
source)
source)
being replaced. Do not mix AC, DC, HVAC/HVDC power supplies in the same switch.
Note
You can determine the airflow direction by looking at the coloring of the latch on each
power supply. AC power supplies with burgundy latches have port-side intake airflow
direction, and power supplies with blue latches have port-side exhaust airflow direction.
power supply. If you are using n+n power redundancy, there must be a separate power source for each
power supply installed in the chassis.
AC power supplies connected to AC power sources are automatically grounded through their power
cable.
Cisco Nexus 93180YC-EX ACI Mode Hardware Installation Guide
Replacing an AC Power Supply
37
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