You can replace a power supply with any other power supply that is supported by the same switch so long as
it provides the same direction of airflow as the fan modules installed in the switch and uses the same type of
power source as the other power supply installed in the switch (do not mix AC, DC, and HVAC/HVDC power
supplies in the same switch). The coloring of the latch handle on the power supply indicates the airflow
direction as explained in the following table that lists the supported power supplies for this switch.
Airflow Direction (Latch Color)
Power Characteristics
Part Number
Port-side intake (burgundy latch)
650 W, 16 A, AC power source
N9K-PAC-650W
Port-side exhaust (blue latch)
650 W, 16 A, AC power source
N9K-PAC-650W-B
Dual direction (white latch) (These
modules automatically use the same
airflow direction as the fan modules
installed in the same switch.)
1200 W, 16 A, HVAC/HVDC
power source
N9K-PUV-1200W
Port-side intake (green latch)
930 W, 16 A, DC power source
UCSC-PSU-930WDC
Port-side exhaust (gray latch)
930 W, 16 A, DC power source
UCS-PSU-6332-DC
Removing an AC Power Supply
You can remove one power supply while the other one provides power to the switch and install the new power
supply in the open slot.
Step 1
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.
If you need to remove an Anderson's Saf-D-Grid power cable connector from a high-voltage power supply,
press the tab at the top of the connector and pull the connector out of the power supply.
Note
Step 2
Grasp the power supply handle while pressing the release latch towards the power supply handle.
Step 3
Place your other hand under the power supply to support it while you slide it out of the chassis.
Do not touch the electrical connectors on the back side of the module and prevent anything else from coming
into contact with and damaging the connectors.
Caution
What to Do Next
You are ready to install an AC power supply in the open slot.
Removing an HVAC/HVDC Power Supply
You can remove one power supply while the other one provides power to the switch.
Cisco Nexus 9396PX NX-OS Mode Switch Hardware Installation Guide
39
Replacing Modules
Removing an AC Power Supply