Replacing A Dc Power Supply - Cisco Nexus 9396PX Hardware Installation Manual

Replacing Modules
• N9K-PAC-650W-B (port-side exhaust airflow direction and a blue ejector latch)
Be sure that the color of the latch on the replacement power supply matches the color of the latch on the other
Note
fan and AC power supply modules already installed in the chassis (DC power supplies with port-side intake
airflow have a green coloring).
Step 7 Hold the replacement power supply by its handle, position the side with the electrical connectors in front of the open
power supply slot in the chassis, and slide the module all the way into the chassis until its latch clicks and the module is
locked in place.
Step 8
Verify that the
If the LED does not turn on, press the latch to the left, pull the module by its handle until it is outside 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 Step 8 to reinstall the module.
Step 9 Plug the AC cable into the power receptacle on the power supply. Be sure that the other end of the power cable is
connected to an AC power source.
Step 10
Verify that the
If the LED is not on, make sure that the power cable is securely plugged into the power receptacle and that the circuit
breaker for the power source is on. If the LED is still not on and there is no fault with the power source, contact Cisco
Technical Assistance for instructions.

Replacing a DC Power Supply

You can replace an DC power supply during operations so long as there is another power supply installed and
operating during the replacement. The switch requires only one power supply for operations, so you can hot
swap the redundant power supply during operations. If there is only one power supply installed in the chassis,
you can replace it by installing the new power supply in the open power supply slot and making it operational
before removing the other power supply.
Caution Be sure that the replacement power supply has the same direction of airflow as the other modules—fan
and AC power supplies have burgundy colorings and DC power supplies have green colorings. Otherwise,
the switch can overheat and shutdown.
Warning Statement 1034—Backplane Voltage
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when
servicing
LED turns on and becomes amber.
LED turns on and becomes green.
Cisco Nexus 9396PX NX-OS-Mode Switch Hardware Installation Guide

Replacing a DC Power Supply

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