Replacing An Ac Power Supply - Cisco Nexus 9396PX Hardware Installation Manual

Replacing an AC Power Supply

Step 4
Place the removed module on an antistatic surface or in an antistatic bag. If possible, repack the module in its packing
materials for safe shipping or storage.
Step 5 Follow these steps to replace the missing fan module withing two minutes to avoid a shutdown.
a) Remove the replacement fan module from its packing materials and place it on an antistatic surface.
Hold the module by its handle and do not touch the electrical connectors on its backside. Also, to protect the electrical
connectors, avoid letting them come in contact with anything other than the electrical connectors inside the chassis.
b) Verify that you have the right fan module for the chassis. The correct fan module has one of the following part
numbers:
• N9K-C9300-FAN2-B (port-side exhaust airflow direction and a blue stripe)
• N9K-C9300-FAN2 (port-side intake airflow direction and a burgundy stripe)
Previously, the Cisco Nexus 9396PX shipped with the N9k-C9300-FAN1-B or N9K-C9300-FAN1 fans.
Note
Currently, the N9K-C9300-FAN2-B and N9K-C9300-FAN2 are shipped with the switch by default.
Be sure that the color of the stripe on the front of the module matches the color of the stripe on the other fan
Note
modules already installed in the chassis.
c) 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 and
Note
check its electrical connectors for damage. If damaged, contact Cisco Technical Assistance for help. If
undamaged, repeat this step to reinstall the module.
d) 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.
e) Secure the fan module to the chassis by screwing in the captive screw to the chassis. Tighten the screw to 8 in-lb (0.9
N·m).

Replacing an AC Power Supply

The switch has one or two power supplies: one power supply outputs power for operations and the other power
supply provides redundant power in case the other power supply or the grid for the other power supply fails.
If the switch has only one power supply, ensure that the open slot has a blank faceplate installed to preserve
the designed airflow.
Cisco Nexus 9396PX NX-OS-Mode Switch Hardware Installation Guide
36
Replacing Modules