Removing An Hvac/Hvdc Power Supply - Cisco Nexus 9336PQ Hardware Installation Manual

Removing an HVAC/HVDC Power Supply

during operations. If the switch has only one power supply, you can install and power up the replacement
power supply in the open power-supply slot before removing the original power supply.
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 you have the appropriate
power source within reach of the power cable. 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.
Table 1: Supported Power Supply Modules
Part Number
N9K-PUV-1200W
NXA-PAC-1200W-PI
NXA-PAC-1200W-PE
N9K-PAC-1200W
N9K-PAC-1200W-B
UCSC-PSU-930WDC
UCS-PSU-6332-DC
Removing an HVAC/HVDC Power Supply
If the switch has two power supplies, you can replace one power supply while the other one provides power
to the switch. If you have only one power supply in the switch, install the replacement power supply in the
open slot before removing the original power supply.
To disconnect the power supply from its power cables, you must shut off the power from the power source
and then either disconnect a connector for the power cables or release each of three cables from the power
supply (requires a standard screw driver).
Step 1 Turn off the circuit breaker for the power source to only the power supply that you are replacing (be sure that this does
not turn off power to the other power supply that is powering the switch during this replacement process).
Be sure that the LEDs turn off on the power supply that you are removing.
Cisco Nexus 9336PQ ACI-Mode Switch Hardware Installation Guide
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Power Characteristics
1200 W, 16 A, HVAC/HVDC
power source
1200 W, 16 A, AC power source
1200 W, 16 A, AC power source
1200 W, 16 A, AC power source
1200 W, 16 A, AC power source
930 W, 16 A, DC power source
930 W, 16 A, DC power source
Replacing Modules
Airflow Direction (Latch Color)
Dual direction (white latch) (These
modules automatically use the same
airflow direction as the fan modules
installed in the same switch.)
Port-side intake (burgundy latch)
Port-side exhaust (blue latch)
Port-side intake (burgundy latch)
Port-side exhaust (blue latch)
Port-side intake (green latch)
Port-side exhaust (gray latch)