Cisco ASR 9922 – 4 fan trays per chassis
ASR-9922-FAN
ASR-9922-FAN-V2
ASR-9922-FAN-V3
● 12 high-efficiency fans per tray
● Variable-speed fans for optimal thermal performance
● No single point of failure
Air circulated by four fan trays as shown in Air Flow Path below.
Two fan trays are located between the line cards in the top cage and the RP and Switch Fabric Cards (FCs) in the middle cage.
Another two fan trays are located between the middle cage and the line cards in the bottom cage.