Allied Telesis REVERSE AIRFLOW HOT-SWAPPABLE FAN MODULE FOR X950 SERIES - AT-FAN05R

Allied Telesis AT-FAN05R Reverse Airflow Hot-Swappable Fan Module

Overview

The AT-FAN05R is a hot-swappable, reverse airflow fan module engineered for Allied Telesis X950 series switches. Reverse airflow (front-to-back exhaust) directs heat toward the cold aisle in standard data center rack configurations — the correct orientation when your power supplies exhaust toward the hot aisle and your airflow architecture requires matched cooling direction across all slots. Hot-swap capability means you can replace a failed fan without powering down the switch, keeping your network infrastructure live during maintenance windows. If you are building or maintaining an enterprise network switch deployment in a structured cabling environment, matching fan airflow direction to your rack layout is a non-negotiable step — mismatched modules create recirculation, raise operating temps, and shorten component life. The AT-FAN05R is the reverse-airflow variant; verify your rack's cold/hot aisle orientation before ordering to confirm this — not the standard-airflow — module is the right fit. For the full Allied Telesis switch accessory line, including compatible power supply modules, review the X950 family accessories.

Compatibility

The AT-FAN05R is designed for use with the Allied Telesis X950 series modular switches. This series includes high-density campus core and aggregation platforms built for 10G/25G/100G environments. Confirm your specific X950 chassis model supports the AT-FAN05R fan slot count and airflow direction before ordering — X950 deployments must use matched airflow fan modules across all installed slots to maintain proper thermal design. Mixing reverse and standard airflow fans in the same chassis is not supported and will degrade cooling performance. Consult the PoE switch and core switch accessories sections for complementary components.

Installation Notes

As a hot-swappable module, the AT-FAN05R installs and removes without powering down the chassis. Ensure the replacement module is fully seated and latched before removing the failed unit to maintain continuous airflow. Fan modules for the X950 series are field-replaceable by qualified network technicians — no specialized tooling is required beyond standard ESD precautions.