Cisco C9500-FAN Full English Description

Product Overview

Important Note: Do not confuse this fan module with Catalyst 9200/9300 series fans or Nexus platform fan trays. Catalyst 9500X models use dedicated C9500X-FAN series fans and are not compatible with C9500-FAN. All installed fans within one chassis must share identical airflow direction; mixing airflow types is unsupported.

Key Features

1. Intelligent Variable-Speed Thermal Regulation

   The fan automatically adjusts rotational speed based on real-time chassis temperature, operating altitude and traffic load. It runs at low RPM under light workloads to reduce acoustic noise, and accelerates airflow dynamically under high-temperature conditions. Onboard thermal sensors transmit environmental telemetry to IOS XE operating system.
2. Front-to-Back Standard Airflow Architecture

   Airflow Direction: Front port-side intake → Rear exhaust. This mainstream airflow design matches Catalyst 9500 AC/DC power supplies, optimized for standard cold-aisle rack layouts in enterprise data centers and core network rooms.
3. OIR (Online Insertion and Removal) Support

   Technicians can replace defective fan modules without powering off or rebooting the Catalyst 9500 switch, eliminating lengthy network outages during hardware maintenance. The module features quick-release latch for convenient tool-free installation and removal.
4. Built-in Visual Status LED Indicator

   Local status LED on each fan module provides instant monitoring:

• Solid Green: Normal operating state
• Solid Amber / Flashing Amber: Fan stall, hardware failure or abnormal status
  Once a fault is detected, IOS XE generates system logs and sends SNMP traps to centralized network monitoring platforms.

1. N+1 Cooling Redundancy Mechanism

   Supported Catalyst 9500 chassis adopts multi-fan redundant architecture. If one fan module fails, remaining functional fans automatically increase speed to maintain sufficient cooling capacity. Failed fans should be replaced immediately to remove thermal single point of failure risk. The system will trigger critical alarms and initiate protection shutdown if the minimum number of operational fans cannot be satisfied.
2. Enterprise-Grade Long-Term Reliability

   High-quality ball-bearing fan assembly engineered for 24/7 continuous operation on enterprise core and aggregation networks. Optimized to handle high heat loads from 10G/25G/40G/100G high-density optical ports.

Supported Hardware Platforms

• Catalyst 9500 Series: C9500-12Q, C9500-24Q, C9500-16X, C9500-40X, C9500-32C, C9500-32QC, C9500-24Y4C, C9500-48Y4C

Not compatible: Catalyst 9500X series, Catalyst 9200/9300/9400 switches, all Nexus 9000 data center switch platforms.

Typical Application Scenarios

• Enterprise core & aggregation layer deployments using Catalyst 9500 fixed switches
• Spare replacement cooling module for failed fans on Catalyst 9500 chassis
• High-density 100G optical networking environments with high thermal dissipation requirements
• Mission-critical corporate networks requiring non-disruptive hot-swap hardware maintenance
• Standard cold aisle containment rack deployment in enterprise data centers

Technical Specifications

• Form Factor: Hot-swappable independent fan module
• Airflow Direction: Front-to-back (port intake, rear exhaust)
• Hot Swappable: Yes (OIR supported)
• Maximum Fan Rotational Speed: Up to 24,000 RPM
• Power Input: 12VDC supplied by switch chassis backplane
• Monitoring: Built-in status LED + IOS XE environmental monitoring & SNMP traps
• Operating Ambient Temperature: 0°C ~ +40°C
• Compliance: UL60950-1, EN60950-1, FCC Class A, CE certified, RoHS compliant

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