Cisco ASR 5500, Руководство по установке

Страница: 139 / 192

Front Air Filter
Installing the air filter incorrectly may cause over-temperature conditions within the system.
Caution
Step 1
Remove the bottom cover panel from the chassis. Firmly grasp the side edges of the panel and pull up and away to unsnap
the panel. Put the panel safely aside. See figure below.
Step 2 Loosen the screws securing the lower fan tray access cover. Remove the cover and set it safely aside.
Step 3
In the gap above the top of the fan tray, locate the two plastic tabs that hang down from the front of the air filter. Pull
the tabs down and back towards the midplane to free the filter from the lip under the front rail of the card cage.
Step 4 While continuing to hold the tabs, allow the filter to spring forward and downward to clear the retaining lip and the slot
at the rear of the card cage. Remove the old filter from the chassis.
Step 5
Verify that the arrows located on the sides of the replacement air filter point upwards (metal grid facing up). These arrows
indicate the direction of the airflow into the chassis through the filter. The spring indicates the rear of the filter and goes
toward the midplane.
Step 6 Slide the replacement air filter into the gap above the fan tray assembly towards the midplane. Tilt the filter slightly
upward to catch the slot in back of the card cage.
Step 7
Push the filter into the rear slot and flush with the bottom of the card cage. Allow the filter to spring forward into the lip
under the front rail of the card cage. The plastic tabs should be hanging down.
Step 8 Reinstall the fan tray access cover.
Step 9
Reinstall the chassis cover panel by snapping it in place.
Step 10 Discard the old air filter.
Figure 25: Front Air Filter Location
ASR 5500 Installation Guide
123
Replaceable Components
Replacing an Air Filter