Cisco C9500X-FAN-1U-F Full English Description

Product Overview

Important Note: Do not mix airflow types within one chassis. Its counterpartC9500X-FAN-1U-Rprovides standard front-to-back airflow. All installed fans must share identical airflow direction. This module only fits Catalyst 9500X and cannot be used on regular Catalyst 9500, Catalyst 9300/9400, or Nexus 9000 switch platforms.

Key Features

1. Intelligent Variable-Speed Thermal Regulation

   The fan dynamically adjusts rotational speed based on internal chassis temperature, altitude and forwarding workload. It operates at low RPM under light loads to reduce acoustic noise and automatically increases airflow under high-temperature and heavy traffic conditions. Onboard thermal sensors transmit real-time environmental telemetry to IOS XE.
2. Back-to-Front Airflow Architecture

   Airflow Direction: Rear intake → Front (port side) exhaust. This airflow layout is suitable for deployments where the hot aisle is located at the front of racks. Must be matched with power supplies that support back-to-front airflow to maintain consistent thermal design.
3. OIR (Online Insertion and Removal) Support

   Engineers can replace a defective fan module without powering off or rebooting the Catalyst 9500X switch. The system allows temporary continuous operation during fan replacement, minimizing downtime for mission-critical enterprise core and data center networks.
4. Built-in Visual Status LED Indicator

   Status LED integrated on each fan module delivers instant local status feedback:

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

1. N+1 Fan Redundancy Support

   The Catalyst 9500X chassis supports six fan modules in an N+1 redundant configuration. If a single fan fails, remaining functional fans ramp up speed to maintain adequate cooling capacity. Timely replacement of faulty fans is strongly recommended to eliminate thermal single point of failure risk.
2. High-Reliability Construction

   Industrial-grade long-life bearing fan assembly engineered for continuous 24/7 operation in core network rooms and data centers. Optimized for heat dissipation under heavy loads generated by high-density 100G/400G optical interfaces.

Supported Hardware Platforms

• Catalyst 9500X-28C8D
• Catalyst 9500X-60L4D

Not compatible: Standard Catalyst 9500 non-X models, Catalyst 9200/9300/9400 switches, all Nexus 9000 series data center switches.

Typical Application Scenarios

• Enterprise core and data center aggregation deployments with front hot aisle rack layout
• Spare replacement cooling module for Catalyst 9500X switches
• High-density 100G/400G core switching environments with high thermal loads
• Mission-critical LAN infrastructure requiring non-disruptive hot-swap maintenance

Technical Specifications

• Form Factor: Single independent hot-swappable fan module
• Airflow Direction: Back-to-front (rear intake, front port-side exhaust)
• Hot Swappable: Yes (OIR supported)
• Maximum Rotational Speed: Up to 30,000 RPM
• Power Input: 12VDC supplied by switch chassis backplane
• Monitoring: Front status LED + IOS XE environmental monitoring & SNMP traps
• Operating Ambient Temperature: -5°C ~ +35°C
• Compliance: UL60950-1, EN60950-1, FCC Class A, CE certified, RoHS compliant

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