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Cisco CRS Carrier Routing System 4-Slot Line Card Chassis Installation Guide
OL-10971-10
Chapter 3 Installing and Removing Air Circulation Components
How to Install or Remove Air Circulation Components
Step 4
Reinstall the lower chassis grille:
a.
Position the grille in front of the air intake slot on the lower front side of the chassis and press it
gently into place. Make sure that you align the guide pins on the lower corners of the grille with the
guide pin holes on the chassis.
b.
Use a medium flat-blade screwdriver to tighten the two captive screws (on for each side) that hold
the grille to the front of the chassis.
Removing a Power Tray Air Filter
This section describes how to remove a power tray air filter. For further information, see the
“About Line
Card Chassis Airflow” section on page 3-1
. For complete information on regulatory compliance and
safety, see
Regulatory Compliance and Safety Information for the Cisco CRS Carrier Routing System
.
The power tray has a serviceable air filter that is inserted into the lower chassis grille, just in front of the
power tray (see item 4 in
Figure 3-8
).
Figure 3-8
Power Tray Air Filter
Prerequisites
No prerequisites exist for this task.
Caution
Never operate the line card chassis without an air filter. Doing so can result in damage to the hardware.
1
Chassis air filter
3
Power tray and power modules
2
Air intake grille
4
Power tray air filter
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