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Replacing a Power Supply Module
b) Position the fan module in front of the open fan slot (be sure that the backside of the module with the electrical
connectors is positioned to enter the slot first) and slide the module all the way into the chassis until its front side
comes in contact with the chassis. For the last 0.2 inches (0.5 cm), carefully mount the module onto the chassis
connectors by pushing more firmly, but do not force the module if it does not move further (excessive force can
damage the connectors).
If you are not able to push the module all the way into the slot, carefully slide the module out of the slot
Note
and check its electrical connectors for damage. If damaged, contact Cisco Technical Assistance for help.
If undamaged, repeat this step to reinstall the module.
c) Verify that the STS LED turns on and becomes green.
If the STS LED does not turn on, slide the module out of the chassis, and visually check the electrical connectors on
the back side of the chassis for damage. If damaged, contact Cisco Technical Assistance for help. If undamaged,
repeat the previous step to reinstall the module.
Replacing a Power Supply Module
The switch requires two power supplies for redundancy. With one power supply providing the necessary
power for operations, you can replace the other power supply during operations so long as the new power
supply has the same airflow direction as the other modules in the chassis.
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 source)
• 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
Removing an AC Power Supply
To remove an AC power supply, you must first disconnect the power cable and then remove the module from
the chassis.
Before you begin
• To replace a power supply during operations, you must have a functioning power supply providing power
Cisco Nexus 9236C NX-OS Mode Switch Hardware Installation Guide
34
source)
a high-voltage AC or DC power source)
source)
to the switch while you replace the other power supply. If there is only one power supply installed in the
Replacing Modules
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