Cisco Part Number: A9K-9904-FAN is a Cisco ASR 9904 fan, 1 fan tray per chassis
The Cisco A9K-9904-FAN is a high-performance fan tray designed for the Cisco ASR 9000 Series 9904 Routers. Engineered to provide reliable cooling and airflow management, this fan tray ensures optimal thermal conditions to support the high-speed data processing and networking capabilities of the ASR 9000 systems. With a modular design, the A9K-9904-FAN is easy to install and maintain, offering efficient cooling to maximize system longevity and uptime.
The Cisco ASR 9904 Router is equipped with a single fan tray that can be swapped out while the system remains operational in the event of a failure. If a fan tray is removed, it must be replaced within 4 minutes to ensure proper cooling.
The fan tray houses twelve 88-mm (3.46-in) axial fans and features a fan control board at the rear, with a single power/data connector linking it to the backplane. It is designed to align easily with two guide pins inside the chassis and is secured with one captive screw. The controller board is mounted to allow for alignment tolerances, ensuring a smooth fit during installation.
A finger guard is positioned in front of most of the fans to prevent contact with spinning blades during tray removal. The fan tray weighs a maximum of 11.0 lb (4.99 kg).