Cisco C9500X-FAN-1U-R - Cooling System Part

Cisco Part Number: C9500X-FAN-1U-R is a Cisco Catalyst 9500X front to back cooling fan

The Cisco Catalyst 9500X Series switch supports field-replaceable, variable-speed modular fans with default front-to-back airflow. It also supports fan modules with back-to-front airflow. These fan units support Online Insertion and Removal (OIR) for up to 120 seconds. The fan unit is responsible for cooling the entire chassis and interfacing with environmental monitors to trigger alarms when conditions exceed thresholds.

Six individual fan modules are available. The switch can operate with five operational fans and one nonfunctional fan. Any failed fan should be replaced as soon as possible to avoid service interruption due to a second fan fault.

For the switch to boot-up, ensure the following conditions are met.

• the switches using C9500X-FAN-1U-R or C9500X-FAN-1U-F modules must at a minimum have 5 fans operating normally

If the switch fails to meet the minimum number of required fans, the switch shuts down automatically to prevent the system from overheating.