Chassis Airflow - Cisco ASR 9000 Series Quick Reference Manual

Cisco ASR 9000 Series
Line Card

Chassis Airflow

ESD
Compatible Modules
Replacement
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Chassis Airflow
Provide unrestricted airflow by maintaining adequate clearance at both the inlet and exhaust openings of the chassis and the
power modules. For more details on chassis airflow clearance, click here.
Prevent any airflow obstruction that may be caused by cables or blocked filters. Manage and route the cables in ideal directions to
prevent such airflow obstructions.
ESD
While performing any function or replacement on the chassis, ensure that you use an ESD-preventive antistatic wrist strap
(or ankle strap) to avoid damage by static electricity.
Periodically, check the resistance value of the ESD-preventive strap. The measurement should be between 1 and 10 M Ohm.
For more details, click here.
Compatible Modules
Use only compatible versions of power modules and fan trays for operations. For the product datasheet, click here.
Replacement
Inspect air filters once every 3 months. If there is an increase in temperature, please check the air filters and fans for any
malfunctioning. For troubleshooting, reach out to Cisco TAC and isolate any possible hardware failure.
Replace air filters that are clogged or damaged. Cleaning the air filters is not recommended.
During maintenance, to avoid dust accumulation and air leakage that can increase the chassis temperature, do not keep the fan tray
slot empty for a long duration.
Maintenance Best Practices
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