Step 1
Turn off the circuit breaker for the power feed to the power supply that you are replacing.
Be sure that the LEDs turn off on the power supply that you are removing.
Step 2
Remove the power cable from the power supply by doing the following:
Step 3
Grasp the power supply handle while pressing the release latch towards the power supply handle.
Step 4
Pull the power supply out of the bay.
What to do next
You are ready to install a DC power supply in the open slot.
Installing an AC Power Supply
You can replace one power supply while the other one provides power to the switch.
Before you begin
• The power supply that you are installing must be capable of using the same airflow direction as the fan
trays installed in the same switch and it must use the same type of power source as the other power supply
installed in the same switch (do not mix AC and DC power supplies in the same switch).
If the power supply that you are replacing has a different color handle
than the replacement power supply, verify that it has or will have the
same airflow direction as the other modules in the switch.
Note
• An AC power source must be within reach of the power cable that will be used with the replacement
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. Otherwise, only one power source is required.
• There must be an earth ground connection to the chassis that you are installing the replacement module.
Typically, the chassis is grounded by its metal-to-metal connection with a grounded rack. If you need to
ground the chassis, see
Grounding the Chassis, on page 20
.
Step 1
Holding the replacement power supply with one hand underneath the module and the other hand holding the handle, turn
the power supply so that its release latch is on the side and align the back end of the power supply (the end with the
electrical connections) to the open power supply slot before carefully sliding the power supply all the way into the slot
until it clicks into place.
If the power supply does not fit into the open slot, turn the module over before sliding it carefully into the open
slot.
Note
Step 2
Test the installation by trying to pull the power supply out of the slot without using the release latch.
If the power supply does not move out of place, it is secured in the slot. If the power supply moves, carefully press it all
the way into the slot until it clicks in place.
Cisco Nexus 93180YC-FX3S NX-OS Mode Switch Hardware Installation Guide
34
Replacing Components
Installing an AC Power Supply
