CAB-US515-C15-US=: Why Is This Cisco Power Ca
What Is the CAB-US515-C15-US= Power Cable? The CA...
Core Functionality and Target Deployments
The CP-6821-FS= is a 6800W AC power supply designed for Cisco Catalyst 6800 Series switches. It provides N+N redundancy for mission-critical environments like financial trading floors, healthcare networks, and industrial control systems where uptime and fault tolerance are non-negotiable.
Technical Specifications and Operational Advantages
- Dual-Feed Input: Supports two independent AC power sources (200–240V) for automatic failover during grid instability.
- Efficiency: Operates at 96% efficiency under typical loads, reducing heat generation and cooling costs in 24/7 deployments.
- Hot-Swap Capability: Replace or add units without powering down the chassis, ensuring continuous operation.
CP-6821-FS= vs. CP-6820-FS=: Power and Redundancy Trade-Offs
| Feature | CP-6821-FS= | CP-6820-FS= (6000W) |
|---|---|---|
| Max Output | 6800W | 6000W |
| Input Redundancy | Dual-source | Single-source |
| Use Case | Tier-IV data centers | Enterprise campus core |
The CP-6821-FS= prioritizes zero-downtime power redundancy, while the 6820-FS= suits cost-sensitive deployments with lower redundancy requirements.
Addressing Key Deployment Concerns
Q: Is this PSU compatible with Catalyst 6500 Series switches?
A: No—it is engineered exclusively for the Catalyst 6800’s modular power shelf. Mixing generations risks incompatibility and voided warranties.
Q: How to ensure hardware authenticity?
A: Purchase through [“CP-6821-FS=” link to (https://itmall.sale/product-category/cisco/) to avoid counterfeit units lacking safety certifications.
Strategic Considerations for High-Reliability Networks
While the CP-6821-FS=’s dual-input design enhances resilience, it requires separate electrical circuits from independent substations to maximize redundancy. Teams must also validate rack PDUs (Power Distribution Units) can handle the 6800W load without tripping breakers—oversights here often lead to unplanned outages during peak loads.
The Reality of “Five Nines” Uptime
In sectors like fintech or emergency services, the CP-6821-FS= isn’t optional—it’s insurance. I’ve witnessed enterprises downgrade to single-source PSUs to cut costs, only to face six-figure losses during power grid fluctuations. For networks where downtime is measured in dollars per second, this PSU’s redundancy and capacity aren’t just features—they’re existential safeguards.