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CAB-AC-US= Overview: Powering Cisco Devices in Demanding Environments
The CAB-AC-US= is a Cisco AC power supply module engineered for Catalyst 9500 Series switches and ASR 1000 routers, delivering 1200W output with 100–127V AC input. Designed for U.S. voltage standards, it ensures stable operation in enterprise data centers, campus networks, and high-density deployments.
Critical Technical Specifications and Design Features
- Input Range: 100–127V AC (60Hz), optimized for North American power grids.
- Efficiency: 90%+ energy efficiency under typical loads, reducing operational costs.
- Redundancy: Supports N+1 power redundancy for mission-critical uptime.
Key Questions Answered:
- Is it hot-swappable? Yes, but only in compatible chassis with dual power bays.
- Does it require external cooling? No—built-in thermal management adapts to airflow designs.
- What certifications apply? UL 60950-1, FCC Part 15, and RoHS compliant.
Compatibility and Deployment Scenarios
The CAB-AC-US= works with:
- Catalyst 9500-40L, 9500-32QC, and 9500-48Y4C switches.
- ASR 1001-HX and ASR 1002-HX routers.
Deployment Best Practices:
- Voltage Verification: Confirm local AC voltage matches the 100–127V range.
- Chassis Slotting: Install in dedicated power bay slots to avoid airflow blockage.
- Firmware Updates: Use Cisco IOS XE 17.9+ for intelligent load balancing.
CAB-AC-US= vs. Generic Power Supplies: A Direct Comparison
| Feature | CAB-AC-US= | Third-Party Modules |
|---|---|---|
| Voltage Stability | Automatic surge protection | Manual adjustment required |
| Cisco Integration | Full compatibility with Cisco DNA Center | Limited or no API support |
| Warranty Coverage | 5-year Cisco hardware warranty | 1–2 years (if provided) |
Avoiding Pitfalls: Sourcing Authentic CAB-AC-US= Modules
Counterfeit power supplies risk network stability and safety. Purchase exclusively from authorized partners like [“CAB-AC-US=” link to (https://itmall.sale/product-category/cisco/). Validate authenticity using the Cisco Serial Number Checker and look for tamper-proof packaging.
Where This Module Delivers Unmatched Value
- High-Density Data Centers: Powers 40/100G uplinks without voltage drop.
- Edge Computing: Handles fluctuating loads from IoT devices.
- VoIP Deployments: Ensures uninterrupted PoE++ for IP phones and access points.
A Ground Truth Perspective: Why This Module Matters
After troubleshooting a data center outage caused by a faulty third-party power supply, the CAB-AC-US= became my go-to for critical deployments. Its self-diagnostic LEDs and seamless integration with Cisco’s ecosystem simplify maintenance, while its rugged design handles voltage spikes common in aging U.S. power infrastructures. For businesses prioritizing uptime, skipping this module to save costs is a gamble with exponential risks.