Cisco N9K-C9504-FAN Full English Description

Product Overview

Important Note: This fan tray is chassis-specific hardware and cannot be interchanged with N9K-C9504-FAN2, nor fan modules for Nexus 9508, 9516, Nexus 7000 series or other Cisco switch platforms. Individual fans inside the tray are not field-replaceable; the entire tray must be swapped out upon internal fan failure. Operators must ensure all installed fan trays and power supplies share identical airflow direction. Insufficient cooling will trigger thermal protection mechanisms to avoid permanent hardware overheating damage. ESD safety procedures must be followed during module replacement.

Key Features

1. Intelligent Variable-Speed Thermal Regulation

   The fan tray dynamically adjusts fan rotational speed based on real-time chassis internal temperature, operating altitude and thermal load of installed line cards and fabric modules. Fans run at low RPM under light workloads to minimize power consumption and acoustic noise, and automatically ramp up airflow when temperatures rise. Continuous thermal telemetry is reported to Cisco NX-OS or ACI mode firmware for comprehensive environmental monitoring.
2. Front-to-Back (Port-Side Intake) Airflow Architecture

   Airflow Direction: Intake from front port side → exhaust toward chassis rear. This airflow design complies with standard hot-aisle / cold-aisle data center rack deployment standards. Operators shall keep front intake vents and rear exhaust openings unobstructed to preserve rated cooling efficiency.
3. OIR (Online Insertion and Removal) Support

   Technicians can replace the fan tray without powering off or rebooting the Nexus 9504 switch. All maintenance operations are performed from the chassis rear panel, supporting non-disruptive servicing for mission-critical data center spine networks. At least two functional fan trays must remain installed during replacement.
4. Rear Panel Visual Status LED & Remote Monitoring

   Built-in status indicator LED on the rear face provides instant local visual feedback:

• Solid Green: All internal fans operate normally
• Solid Amber/Red: Fan fault or temperature anomaly detected
  NX-OS generates environmental syslog entries and sends SNMP traps to centralized monitoring systems immediately upon detection of fan abnormalities.

1. N+1 Redundant Cooling Capability

   Multiple independent fans are integrated within each tray assembly. If a single fan unit malfunctions, remaining operational fans automatically accelerate to sustain temporary cooling capacity. Administrators should arrange replacement promptly to eliminate thermal single-point-of-failure risks.
2. Data Center-Grade Reliability

   Industrial long-life bearing fan assembly engineered for 24/7 continuous operation in enterprise and service provider data center spine layers. Optimized to dissipate heat generated by high-density 10G/25G/100G Ethernet line cards and fabric modules.

Supported Hardware Platforms

• Cisco Nexus 9504 Modular Spine Switch Chassis (N9K-C9504)

Not compatible: Nexus 9508, Nexus 9516, Nexus 7000 series, Catalyst 4500 / 6500 switches and all Cisco router platforms.

Complementary upgrade model:N9K-C9504-FAN2 (Gen2 high airflow fan tray)for higher thermal-load fabric module configurations.

Typical Application Scenarios

• Data center spine layer deployments built on Nexus 9504 modular switches (NX-OS or ACI mode)
• Spare replacement cooling assembly for failed fan trays on Nexus 9504 chassis
• Network environments deployed with medium thermal-density multi-rate Ethernet line cards
• Mission-critical cloud data center infrastructure requiring hot-swappable non-disruptive maintenance

Technical Specifications

• Form Factor: Rear-mounted hot-swappable fan tray for Nexus 9504 chassis
• Airflow Direction: Front-to-Back (Port-side intake)
• Hot Swappable: Yes (OIR supported under NX-OS / ACI firmware)
• Maximum Power Consumption: 150W per fan tray
• Weight: 6.4 lb (2.9 kg)
• Power Feed: Powered via chassis rear midplane backplane
• Monitoring: Rear status LED + NX-OS environmental logging & SNMP traps
• Minimum Operational Requirement: At least two fan trays installed
• Operating Ambient Temperature: 0°C ~ +40°C
• Compliance: UL60950-1, EN60950-1, FCC Class A, CE certified, RoHS compliant

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Supplementary Remark

High airflow second-generation alternative: N9K-C9504-FAN2. N9K-C9504-FAN cannot be mounted on other Nexus 9500 family chassis models.