57
4.
Examine the FAN LEDs on the MPU of the switch. If the OK LED is on, the fan tray is installed
successfully. For more information about the FAN LEDs, see "Appendix C LEDs."
Figure 54 Installing a fan tray for other models
Replacing an air filter
CAUTION:
Clean air filters every three months to guarantee adequate ventilation and avoid over-temperature.
The air filter of the 7506-V is different from other models.
•
The 7506-V has two air filters on its front and rear panels. For how to replace the air filters, see
"
Replacing air filters on a 7506-V
•
Other models of the 7500 switches have only one air filter. For how to replace it, see "
an air filter for the other models
."
Replacing air filters on a 7506-V
1.
Use a Phillips screwdriver to remove the captive screws on the front and rear air filters, as
shown by callout 1 in
.
2.
Remove the front and rear air filters from the chassis, as shown by callout 2 in
.
3.
Install the cleaned front and rear air filters to the switch. For the installation procedures, see
"Installing the switch."
