Cisco WS-C6K-NEB-FAN (WS-C6509-NEB-FAN) Full English Description

Product Overview

Important Note: This fan tray is chassis-specific hardware. It cannot be used on standard horizontal Catalyst 6509, Catalyst 6509-E or any other Catalyst 6500 series chassis variants. Individual fans inside the tray are not field-replaceable; the entire tray must be swapped out if any internal fan fails. WS-C6509-NEB-UPGRD serves as the high airflow upgrade option for high-power supervisors. Operating the chassis without a fully functional fan tray triggers critical thermal alarms and may result in permanent hardware damage caused by overheating.

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 network forwarding workload. It runs at low RPM under light traffic loads to reduce acoustic noise and automatically increases fan speed under high-temperature operating conditions. Real-time thermal telemetry is transmitted to Cisco IOS for continuous environmental monitoring.
2. Front-to-Back Airflow Architecture

   Airflow Direction: Front-side intake → Rear exhaust. This vertical-chassis airflow design matches Catalyst 6509-NEB mechanical layout, delivering balanced heat dissipation for telecom-grade network modules. Optimized for NEBS-compliant service provider central office rack deployments.
3. OIR (Online Insertion and Removal) Support

   Technicians can replace the complete fan tray without powering off or rebooting the Catalyst 6509-NEB switch. Equipped with an ergonomic front handle and captive screws for tool-free installation and removal, minimizing maintenance downtime for mission-critical service provider networks.
4. Front Panel Visual Status LED & Remote Monitoring

   Status LED located on the front face provides instant local visual feedback:

• Solid Green: All internal fans operate normally
• Solid Red: One or more internal fans stall or encounter hardware faults
  Cisco IOS generates environmental event logs and sends SNMP traps to centralized monitoring systems immediately upon detection of fan faults.

1. Built-In Multi-Fan Redundancy

   Multiple independent fans are integrated within one tray. If a single fan malfunctions, remaining operational fans automatically ramp up speed to sustain basic cooling capacity. Administrators should replace the fan tray promptly after detecting any fan failure to eliminate thermal single-point-of-failure risks.
2. Telecom / NEBS-Grade Durability

   Industrial long-life bearing fan assembly engineered for 24/7 continuous operation in service provider central offices. Designed to satisfy stricter NEBS environmental standards for temperature, vibration and electromagnetic interference. Optimized to dissipate heat generated by multi-gigabit optical and copper line cards.

Supported Hardware Platforms

• Catalyst 6509-NEB (Vertical 9-slot NEBS modular switch chassis)
• Catalyst 6509-NEB-A (Vertical 9-slot NEBS modular switch chassis)

Not compatible: Standard Catalyst 6509, Catalyst 6509-E, Catalyst 6503/6506/6513, Catalyst 4500 / 9000 series switches, all 7600 routers and Nexus data center switch platforms.

Typical Application Scenarios

• Service provider central office deployments built on Catalyst 6509-NEB NEBS-certified switches
• Spare replacement cooling unit for failed fan trays on vertical 6509-NEB chassis
• Telecom infrastructure with low-to-medium thermal load line cards and Supervisor Engine 1 / Supervisor Engine 2
• Mission-critical carrier-grade network infrastructure requiring non-disruptive hot-swap maintenance

Technical Specifications

• Form Factor: Integrated full chassis fan tray
• Airflow Direction: Front-to-back (vertical NEBS chassis airflow)
• Fan Type: Standard-speed assembly (high-speed upgrade: WS-C6509-NEB-UPGRD)
• Hot Swappable: Yes (OIR supported)
• Power Input: Supplied by chassis backplane
• Monitoring: Front status LED + IOS environmental monitoring & SNMP traps
• Recommended Supervisor: Sup1, Sup2 (High-speed tray required for Sup32 / Sup720)
• Operating Ambient Temperature: 0°C ~ +40°C
• Compliance: NEBS compatible, UL60950-1, EN60950-1, FCC Class A, CE certified, RoHS compliant

Short Version for E-commerce Listing

Supplementary Remark

High airflow upgrade alternative: WS-C6509-NEB-UPGRD, required for chassis equipped with Supervisor Engine 32 or Supervisor Engine 720. This fan tray cannot be mounted on horizontal Catalyst 6509 or 6509-E chassis.