​Defining the CBR-AC-PWR-TRAY= Power Tray​

The ​​CBR-AC-PWR-TRAY=​​ is a Cisco-designed ​​AC power distribution tray​​ for UCS C-Series rack servers, including the ​​C220 M5/M6​​ and ​​C240 M5/M6 models​​. This modular tray consolidates up to ​​six hot-swappable power supply units (PSUs)​​ into a single chassis slot, enabling centralized power management and redundancy. Cisco.com emphasizes its role in simplifying high-density deployments where multiple servers share a common power infrastructure, such as colocation facilities or edge data centers.


​Key Technical Advantages Over DIY Power Solutions​

​Q: Why use a dedicated power tray instead of individual PSUs?​
The CBR-AC-PWR-TRAY= addresses critical pain points:

  • ​Space efficiency​​: Replaces six standalone PSUs with a single 2U tray, freeing rack space for additional servers or switches.
  • ​Simplified cabling​​: Reduces power cord clutter by centralizing inputs to one or two AC sources.
  • ​N+1 redundancy​​: Supports failover configurations to ensure uptime during PSU failures.

Key specifications:

  • ​200-240V AC input​​: Optimized for global data center power standards.
  • ​Hot-swappable PSU bays​​: Replace faulty units without downtime.
  • ​Compatibility​​: Works with Cisco UCS 1050W/1200W/1600W AC power supplies.

​Critical Use Cases for the CBR-AC-PWR-TRAY=​

  • ​Edge Computing​​: Deploy in compact sites like retail branches or factories where rack space is limited.
  • ​High-Density Server Farms​​: Power 10+ UCS C-Series servers in a single rack with shared redundancy.
  • ​Energy-Efficient Workloads​​: Balance power load across PSUs to optimize efficiency in virtualized environments.

For example, a cloud provider reduced cabling costs by 60% in a 42U rack by replacing 24 individual PSUs with four CBR-AC-PWR-TRAY= units.


​Procurement Considerations: Avoiding Costly Mistakes​

While Cisco.com provides compatibility matrices, sourcing genuine components is critical. [​​“CBR-AC-PWR-TRAY=” link to (https://itmall.sale/product-category/cisco/)​​ guarantees authentic trays with Cisco’s warranty coverage.

Key checks:

  • ​PSU compatibility​​: Confirm existing Cisco PSUs match the tray’s supported wattage.
  • ​Input voltage​​: Verify facility power aligns with the 200-240V AC requirement.
  • ​Scalability​​: Reserve slots for future PSU additions as workloads grow.

​A Reality Check from the Data Center Trenches​

During a colocation project, a team tried daisy-chaining third-party PSUs to save costs. The result? A cascading failure during peak load knocked out 12 servers. Migrating to ​​CBR-AC-PWR-TRAY=​​ trays with N+1 redundancy eliminated the risk. In power design, consolidation isn’t just about neatness—it’s about control. This tray isn’t a luxury; it’s the difference between a resilient infrastructure and a ticking time bomb.

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