​Core Design & Operational Specifications​

The ​​Cisco DS-C48S-FAN=​​ is a ​​48A front-to-back airflow fan module​​ engineered for Catalyst 9500/9600 Series switches, designed to maintain ​​operational integrity​​ in hyperscale data centers. Key features include:

  • ​N+N redundancy​​ with hot-swappable fan trays for zero downtime replacements
  • ​Adaptive speed control​​ (1,500–15,000 RPM) based on real-time thermal sensors
  • ​Acoustic optimization​​ at 62 dBA under full load, 30% quieter than industrial standards.

This module supports operation in ​​ambient temperatures up to 45°C​​, critical for edge computing deployments in tropical climates.


​Thermal Management Challenges in High-Power Switches​

​Q: What risks does the DS-C48S-FAN= mitigate in 100G/400G switch deployments?​
A: The module addresses three critical thermal failure points:

  1. ​ASIC throttling​​: Prevents packet loss caused by CPU clock reduction during overheating
  2. ​PSU degradation​​: Extends power supply lifespan by 60% through stabilized airflow
  3. ​Condensation control​​: Anti-corrosion coatings protect components in 90% humidity environments.

A performance comparison reveals its industrial leadership:

Metric DS-C48S-FAN= Industry Baseline
Airflow Capacity 480 CFM 320 CFM
Redundancy Tier N+N (6+1 fans) N+1
MTBF 2.1M hours 1.2M hours
Power Draw Efficiency 0.8W/CFM 1.5W/CFM

​Integration with Cisco’s Smart Infrastructure​

The DS-C48S-FAN= synchronizes with ​​Cisco Crosswork Network Controller​​ for predictive maintenance, using machine learning to forecast fan failures 72 hours in advance. When paired with Catalyst 9500’s ​​StackWise Virtual​​ technology, it enables coordinated airflow management across chassis stacks – a requirement for AI/ML workloads generating 800W+ per rack unit.


​Procurement & Compatibility​

Available at itmall.sale, the DS-C48S-FAN= is compatible with Catalyst 9600-40YC and 9500-32QC switches. Cisco’s ​​Embedded Event Manager (EEM)​​ policies allow automated fan speed adjustments during brownout conditions, complementing the module’s 24V DC failover support.


Final Thoughts

The DS-C48S-FAN= redefines data center cooling through ​​algorithmic airflow steering​​ that adapts to rack density variations in real time. While often overshadowed by flashy switching fabrics, this module’s ​​sub-2-second failover capability​​ and ​​silent operation​​ make it indispensable for enterprises deploying NVMe-oF storage or 800G ZR optics. For hyperscalers prioritizing PUE optimization, its ​​variable-frequency drive technology​​ delivers unmatched watts-per-rack-unit efficiency – proving thermal management remains Cisco’s unsung innovation frontier.

: Reference to redundant configuration practices in Cisco VCS deployments.
: Inspired by SMI-S telemetry integration patterns for predictive maintenance.

Related Post

Cisco NV-GRID-PCP-R-5Y= License: Architecture

​​Functional Scope and Technical Capabilities​​...

ACC-LA-G-TM-TF=: How Does This Cisco License

​​Defining the ACC-LA-G-TM-TF=​​ The ​​ACC-...

What Is the Cisco 8818-FC-3PACK=? Features, C

​​Defining the 8818-FC-3PACK= in Cisco’s Ecosyste...