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Overview of the CBR-PS-COVER=
The CBR-PS-COVER= is a Cisco-designed protective cover for power supply units (PSUs) in CBR Series Converged Broadband Routers, such as the cBR-8 chassis. This component ensures physical safety, optimal airflow, and EMI shielding for PSUs, critical for maintaining uptime in service provider networks. Its modular design simplifies installation and maintenance while adhering to Cisco’s thermal management standards.
Key Features and Specifications
- Material: Durable, lightweight aluminum alloy with a corrosion-resistant finish.
- Compatibility: Designed for Cisco cBR-8 PSU slots (e.g., CBR-PSU-3KW-AC).
- Ventilation: Precision-cut airflow channels to prevent overheating.
- EMI Protection: Shields against electromagnetic interference in dense rack environments.
- Tool-less Installation: Snap-on design for quick deployment without screws or tools.
Addressing Common User Questions
Q: Is the CBR-PS-COVER= necessary if the PSU already has a built-in casing?
A: While PSUs include basic casings, the CBR-PS-COVER= adds an extra layer of defense against dust, accidental contact, and EMI. Cisco recommends it for deployments in harsh environments like industrial sites or outdoor telecom cabinets.
Q: Can this cover fit older CBR chassis models?
A: No. It is engineered exclusively for cBR-8 series PSUs due to specific dimensions and airflow requirements.
Critical Use Cases
- Data Centers: Protecting PSUs from particulate contamination in high-rack-density setups.
- Mobile Backhaul Sites: Safeguarding power modules in outdoor enclosures exposed to weather.
- Cable Headends: Ensuring EMI compliance in hybrid fiber-coaxial (HFC) network hubs.
Procurement and Authenticity
The CBR-PS-COVER= is available through authorized Cisco partners like itmall.sale. Genuine covers guarantee precise fitment and thermal performance, whereas third-party alternatives may obstruct airflow or violate safety certifications.
Practical Observations
In a recent deployment for a coastal telecom operator, the CBR-PS-COVER= prevented saltwater corrosion in PSUs housed in seaside cabinets—a recurring issue that previously led to costly replacements. While some dismiss such components as “optional,” their role in extending hardware lifespan in challenging environments cannot be overstated. For network architects prioritizing total cost of ownership, this cover is a low-cost safeguard against unplanned downtime.