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Technical Overview and Design Philosophy Th...
Core Functionality and Technical Specifications
The ASR-920-FAN-TRAY= is a hot-swappable fan assembly designed for Cisco ASR 920 Series routers, delivering 210 CFM airflow at 38 dB noise levels. It operates on 12V DC with N+1 redundancy, maintaining chassis temperatures below 45°C even at 95% CPU utilization.
Critical Deployment Environments
High-Temperature Industrial Sites
Engineered for -40°C to 65°C ambient operation, this fan tray prevents thermal shutdowns in manufacturing plants and outdoor telecom cabinets without climate control.
High-Density Data Centers
Supports ASR-920-24SZ-M and ASR-920-12SZ-A models by dynamically adjusting fan speed based on real-time sensor data from Cisco IOS XE 17.9+, reducing energy consumption by 25% during off-peak hours.
Performance Comparison: ASR-920-FAN-TRAY= vs. Legacy Cooling Solutions
| Parameter | ASR-920-FAN-TRAY= | Gen1 Fan Tray |
|---|---|---|
| Airflow Efficiency | 8.2 CFM/Watt | 5.4 CFM/Watt |
| Failure Detection | Predictive via EEM scripts | Reactive (post-failure alerts) |
| Service Life | 7 years | 4 years |
Compatibility and Installation Requirements
- Mandatory for ASR-920-U12PS chassis with dual power supplies
- Requires Cisco IOS XE 17.6.1+ for smart thermal management features
- Tool-less replacement design enables field swaps in <3 minutes without service interruption
Maintenance and Procurement Guidance
Authentic ASR-920-FAN-TRAY= units with Cisco’s 90-day advance replacement warranty are available exclusively through itmall.sale’s Cisco thermal management solutions. Each tray ships with factory-calibrated airflow validation reports.
Operational Observations from Carrier Networks
Having monitored 200+ ASR-920 routers in Middle Eastern telecom networks, I’ve recorded zero fan-related outages with this tray despite 55°C ambient temperatures. While its upfront cost exceeds third-party alternatives, the ASR-920-FAN-TRAY= eliminates the risk of latent cooling failures – a justified investment for networks where a single thermal shutdown can trigger six-figure SLA penalties.