Cisco CQ211L01-48H8FH Hardware Installation Manual page 46

Replace the Latched Fan Modules
Figure 16: Cisco CQ211L01 Switch — Remove Fans
Latched fan module
1
b) As you simultaneously press the latches pull the fan module fully out of the chassis.
Step 2
To install a fan module, follow these steps:
a) Hold the fan module with the LED at the top.
b) Align the fan module to the open fan tray slot in the chassis, and press the module all the way into the slot until the
left and right latches click and are locked on the chassis.
Note
c) If the chassis is powered on, listen for the sound of the fans in operation. You should immediately hear them in
operation. If you do not hear them, ensure that the fan module is inserted completely in the chassis.
Note
d) Verify that the fan module LED is green. If the LED is not green, one or more fans are faulty. If this situation occurs,
contact your customer service representative for replacement parts.
Hardware Installation Guide for Cisco CQ211L01 Switch
40
If the fan module does not go all the way into the slot, do not force it. Remove the fan module and verify
that it is the correct type for your router and in the correct orientation. To verify the status of fans and
the speed, use the show environment fan command.
During the fan module replacement, the other fans adjust their speed to allow for proper initialization of
the new module. When you insert a new fan module, the fans may run at lower or higher speeds for a
few minutes.
Replace Chassis Components