Installing A Fan Module - Cisco Catalyst C3850 Series Hardware Installation Manual

Installing the Fan

Installing a Fan Module

Procedure
Step 1 Pinch the fan module release handle, and slide the module out.
Caution
Step 2 Install the fan module in the fan slot, and firmly push it into the slot, applying pressure to the end of the
module, not the extraction handles. When correctly inserted, the fan module is flush with the switch rear panel.
When the fan is operating, a green LED is on in the top left corner of the fan.
Warning
Figure 69: Installing the Fan Module
1
Note
Note
OL-26779-05
You should replace the fan module within 5 minutes to avoid overheating the switch.
Do not reach into a vacant slot when installing or removing a module. Exposed circuitry is an energy
hazard. Statement 206
The airflow for C3850-48XS switches will depend on the power supply and fans installed. Ensure
that the power supplies are inserted correctly to match the corresponding fans. Power supplies with
blue handles correspond to fans with blue handles, and power supplies with red handles correspond
to fans with red handles.
• For power supplies and fans with red handles, airflow is from the front panel to the rear panel
(warm air is 'pulled out of' the switch.)
• For power supplies and fans with blue handles, airflow is from the rear panel to the front panel
(cool air is 'pushed into' the switch.)
Ensure that the fans are inserted correctly to match the corresponding power supplies. Fans with
blue handles correspond to power supplies with blue handles, and fans with red handles correspond
to power supplies with red handles.
Fan LED
Catalyst 3850 Switch Hardware Installation Guide
Installing a Fan Module
85