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Cisco Part Number: FPR4K-FAN= is a Cisco Firepower 4000 Series Fan Spare
The Cisco Firepower 4100 Series is a family of seven threat-focused NGFW security platforms. Their throughput range addresses data center and internet edge use cases. They deliver superior threat defense, at faster speeds, with a smaller footprint. Cisco Firepower 4100 Series supports flow-offloading, programmatic orchestration, and the management of security services with RESTful APIs. Network Equipment Building Standards (NEBS)-compliance is supported by the Cisco Firepower 4125 platform. The 4100 Series platforms can run either the Cisco Secure Firewall ASA or Cisco Secure Firewall Threat Defense (FTD) software.
The Firepower 4100 requires six FPR4K-FAN= fan modules, which are hot-swappable. They are installed in the rear of the chassis. The system supports operation with a single fan failure (N+1 fan redundancy), but do not run the system for an extended amount of time without all fan modules installed. Keep removal and replacement time at three minutes. Remove and replace one fan module at a time.
If you remove a fan or a fan fails, the other fans operate at full speed, which can be noisy.
The fan modules are numbered left to right, for example, FAN1, FAN2, FAN3, FAN4, FAN5, and FAN6.
