Cisco ASR 5500, Installation Manual

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Temperature and Fan Alarm Commands
show fans Command
To monitor chassis temperature and fan speed, issue the
show fans
command in the CLI Exec mode.
The following is a sample output for this command:
[local]asr5500#
show fans
Lower Rear Fan Tray: State=Normal Speed=65% Temp=27 C
Lower Front Fan Tray: State=Normal Speed=65% Temp=27 C
Upper Rear Fan Tray: State=Normal Speed=70% Temp=28 C
Upper Front Fan Tray: State=Normal Speed=70% Temp=40 C
The safe operating temperature range for the chassis and its components is between -5 degrees C and 50
degrees C (23 degrees F and 122 degrees F). Important
show temperature Command
The show temperature command displays the relative temperature state of all cards currently installed, as
well as the ambient temperature at all fan tray units.
[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
Replacing an Air Filter
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. Caution
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.
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. Caution
ASR 5500 Installation Guide
122
Replaceable Components
Replacing an Air Filter