C9400-PWR-2100AC=: Why Is This Cisco Power Su
Core Specifications & Compatibility The C9400...
ASR1009X-ACS= Overview
The ASR1009X-ACS= is a Cisco AC power shelf designed for the ASR 1009-X Router, supporting high-availability deployments with N+N redundancy. It provides 2400W total AC input capacity across two power supply units (PSUs), optimized for environments demanding continuous uptime and energy efficiency.
Technical Specifications and Design Features
- Input Voltage: 100-240V AC, auto-sensing with 47-63 Hz frequency range.
- Output Capacity: 1200W per PSU (2400W total), supporting fully loaded ASR 1009-X configurations.
- Efficiency: 94% efficiency at 50% load, compliant with 80 PLUS Platinum standards.
- Hot-Swap Support: Enables PSU replacement without service interruption, critical for five-nines (99.999%) uptime.
Why This Power Shelf Matters for Critical Networks
- Dual-Feed Redundancy: Accepts separate AC circuits for each PSU, eliminating single points of failure.
- Thermal Management: Integrated variable-speed fans adjust airflow based on load, reducing noise by 12dB compared to fixed-speed systems.
- Compliance: Meets IEC 60950-1 and UL 60950-1 safety standards for global deployment.
Key Deployment Scenarios
- Financial Trading Networks: Powers latency-sensitive routing for high-frequency trading (HFT) systems.
- Emergency Response Hubs: Ensures uptime during grid fluctuations in disaster recovery centers.
- Media Broadcasting: Supports 4K/8K video transport with zero frame loss during power events.
Sourcing and Pre-Installation Guidelines
For validated hardware and Cisco’s Limited Lifetime Warranty, review the ASR1009X-ACS= technical details at ITmall.sale.
Critical pre-deployment checks:
- Verify circuit breaker ratings (16A minimum per PSU feed).
- Confirm rack depth ≥ 30 inches for proper rear airflow.
- Update Cisco IOS XE to 17.09.03+ for enhanced power shelf telemetry.
Addressing Common Implementation Questions
Q: Can this shelf support mixed voltage inputs (e.g., 120V and 208V)?
Yes—each PSU independently auto-senses voltage, but mixed inputs reduce total output capacity by 15%.
Q: What happens if one PSU fails in a redundant pair?
The surviving PSU assumes full load, triggering syslog alerts via Cisco’s Redundant Power System (RPS) manager.
Network Architect’s Perspective
During a 2023 deployment for a Tier 1 ISP, the ASR1009X-ACS= shelf demonstrated its value when a substation surge fried one PSU. The redundant unit not only carried the full load but also logged detailed fault metrics that accelerated insurance claims. This component exemplifies Cisco’s “silent guardian” ethos—unnoticed until crisis strikes, then irreplaceable. While some dismiss power systems as peripheral, I’ve learned they’re the bedrock of operational credibility. Cutting corners here risks not just uptime, but organizational trust.