Cisco N9K-C9504-FAN2 Full English Description

Product Overview

Important Note: This fan tray is chassis-specific hardware. Mixed installation of N9K-C9504-FAN and N9K-C9504-FAN2 within one chassis isnot supported. Individual fans inside the tray are non-field-replaceable; the entire tray needs replacement upon internal fan failure. Extended insufficient cooling triggers thermal protection shutdown to prevent permanent hardware overheating damage. Standard ESD anti-static protocols are required during module handling and 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 fabric modules and line cards. Fans operate at low RPM under light workloads to reduce power draw and acoustic noise, and automatically ramp up airflow when temperatures rise. Continuous thermal telemetry data is reported to Cisco NX-OS or ACI firmware for full environmental monitoring.
2. Front-to-Back (Port-Side Intake) Airflow Architecture

   Airflow Direction: Air intake from front port side → exhaust toward chassis rear. This airflow design complies with industry-standard hot-aisle / cold-aisle data center rack layout. Operators shall ensure front intake vents and rear exhaust openings remain unobstructed to maintain 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, enabling non-disruptive servicing for mission-critical data center spine fabrics. At least two functional fan trays must remain installed during replacement activities.
4. Rear Panel Visual Status LED & Remote Monitoring

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

• Solid Green: All internal fans operate normally
• Solid Amber/Red: Fan fault or over-temperature alarm detected
  NX-OS generates environmental syslog entries and sends SNMP traps to centralized monitoring systems immediately once fan anomalies are detected.

1. Enhanced High-Capacity Cooling Design

   Integrated with six ultra-high-speed fans delivering increased airflow capacity (max power consumption306W per tray), capable of dissipating heat generated by high-density 400G fabric modules and high thermal-load multi-rate Ethernet line cards. Multiple independent fans provide temporary cooling backup if one internal fan fails. Administrators should arrange prompt replacement to eliminate thermal risks.
2. Data Center-Grade Reliability

   Industrial long-life bearing fan assembly engineered for 24/7 continuous operation in enterprise and carrier-grade cloud data center spine layers. Optimized for high-density, high-speed 25G / 100G / 400G fabric deployments.

Supported Hardware Platforms

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

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

Compatibility Reminder: Required for N9K-C9504-FM-G fabric modules; cannot be mixed with N9K-C9504-FAN in the same chassis.

Typical Application Scenarios

• Cloud data center spine layer deployments with Nexus 9504 equipped with 400G FM-G fabric modules
• Spare replacement high airflow cooling assembly for Nexus 9504 high thermal-density chassis
• Network environments deployed with high-power 100G/400G line cards and enhanced fabric modules
• Mission-critical ACI or NX-OS data center infrastructure requiring hot-swappable non-disruptive maintenance

Technical Specifications

• Form Factor: Rear-mounted Generation2 high airflow 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: 306W per fan tray
• 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

Baseline standard airflow counterpart: N9K-C9504-FAN. N9K-C9504-FAN2 cannot be mounted on other Nexus 9500 family chassis models, and mixed fan tray models inside one chassis are unsupported.