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Replacing Components
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-500W-PE (500-W, port-side exhaust (blue latch) power supply requiring AC power source
• NXA-PAC-500W-PI (500-W, port-side intake (burgundy latch) power supply requiring AC power
• N9K-PUV-1200W (1200-W, dual-direction (white latch) high-voltage AC/DC power supply requiring
• 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:
a) Holding the plug for the power cable, pull the plug out from the power receptacle on the power supply and verify
that both power supply LEDs are off.
b) Grasp the power supply handle while pressing the colored release latch towards the power supply handle.
c) Place your other hand under the power supply to support it while you slide it out of the chassis.
Do not touch the electrical connections on the back side of the module and prevent anything else from
Caution
coming into contact with and damaging the connectors.
providing at least 16 A)
source providing at least 16 A)
a high-voltage AC or DC power source providing at least 16 A)
providing at least 16 A)
source providing at least 16 A)
being replaced. Do not mix AC, DC, HVAC/HVDC power supplies in the same switch.
You can determine the airflow direction by looking at the coloring of the latch on each
Note
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 93108TC-FX ACI Mode Hardware Installation Guide
Replacing an AC Power Supply
37
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