Cisco Nexus 9396PX Hardware Installation Manual page 47

Replacing Modules
If you must replace the fan module during operations and both of the above conditions are not met, leave the
fan module that you need to replace in the chassis to preserve the designed airflow until you have the required
module.
Step 1 Verify that the fan modules that you are not replacing each have a lit Status (STS) LED (see the following figure for the
location of the LED). If you are replacing a fan module during operations, the other two fan modules must be operating.
Note If you are replacing the fan module while the chassis is not operating, you can skip this
step.
1 Captive screw
2 Status (STS) LED
3 Handle
Early shipments of the switch included the FAN1 or FAN1-B fan modules, which have a slightly different
Note
appearance when removed from the chassis.
Step 2
Unscrew the captive screw that secures the fan module to the chassis.
Step 3 Pull the fan module handle to slide the module out of the chassis.
To prevent electrostatic discharge (ESD) damage to the module electronics, do not touch the electrical
Caution
connectors on the back side of the module. Also, to prevent any damage to the electrical connectors, prevent
them touching anything that can bend or break them.
4 Colored stripe specifying the airflow direction
(burgundy for the port-side intake direction or blue
for the port-side exhaust direction)
5 Electrical connectors on the backside.
Cisco Nexus 9396PX NX-OS Mode Switch Hardware Installation Guide
Replacing a Fan Module During Operations
37