Cisco Cisco Packet Data Gateway (PDG) Installationsanleitung
Replaceable Components
Air Filters ▀
ASR 5500 Installation Guide ▄
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[local]asr5500# show temperature
Card 2: Normal
Card 5: Normal
Card 6: Normal
Card 7: Normal
Card 9: Normal
Card 11: Normal
Card 12: Normal
Card 14: Normal
Card 15: Normal
Card 16: Normal
Card 17: Normal
Fan Lower Rear: 26 C
Fan Lower Front: 27 C
Fan Upper Rear: 28 C
Fan Upper Front: 40 C
Card 2: Normal
Card 5: Normal
Card 6: Normal
Card 7: Normal
Card 9: Normal
Card 11: Normal
Card 12: Normal
Card 14: Normal
Card 15: Normal
Card 16: Normal
Card 17: Normal
Fan Lower Rear: 26 C
Fan Lower Front: 27 C
Fan Upper Rear: 28 C
Fan Upper Front: 40 C
Replacing an Air Filter
Caution:
Do not operate the chassis for extended periods of time after removing an air filter. Doing so will
cause dust to build up within the chassis, possibly hindering air flow and clogging open connector ports.
The fan tray filters are mounted underneath the front and rear card cages. A gap between the top of the fan tray unit and
the air filter allows you to remove the filter without having to remove the fan tray. The air filter is spring-loaded at the
rear.
the air filter allows you to remove the filter without having to remove the fan tray. The air filter is spring-loaded at the
rear.
Caution:
Do not attempt to install air filters in the space above the upper fan trays. The top of the chassis is not
designed for air filters. Installing air filters above the upper fan trays may cause power shorts.
Front Air Filter
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.
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.
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.
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.
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.
Caution:
Installing the air filter incorrectly may cause over-temperature conditions within the system.