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What Is the ASR-9912-DC?
The ASR-9912-DC is the direct current (DC) power supply module for Cisco’s ASR 9912 router, a high-performance platform designed for service providers and large enterprises. Tailored for environments reliant on DC power infrastructure—such as telecom central offices or data centers with battery-backed power systems—this module ensures stable, efficient energy delivery to support the router’s demanding workloads.
Key Technical Advantages
- High efficiency (94%+): Minimizes energy loss, critical for reducing operational costs in 24/7 deployments.
- Dual-input redundancy: Supports N+1 power redundancy to eliminate single points of failure.
- Scalable output: Delivers up to 12.5 kW per shelf, accommodating high-density line cards like 400G/1T interfaces.
DC vs AC Power: Which Is Right for Your ASR 9912?
| Factor | ASR-9912-DC | AC Power Modules |
|---|---|---|
| Infrastructure Fit | Ideal for DC-powered facilities | Requires AC power grids |
| Efficiency | Higher (94%+) | Typically 85-90% |
| Failure Resilience | Less susceptible to grid fluctuations | Dependent on AC stability |
Addressing User Concerns
Q: Can the ASR-9912-DC integrate with existing DC power systems?
Yes. It complies with -48V DC standards, widely used in telecom, and supports hot-swappable installation to align with legacy setups.
Q: What happens during a power overload?
The module includes real-time load monitoring and automatic shutdown protocols to protect hardware from damage.
Q: Is it compatible with all ASR 9912 chassis configurations?
The ASR-9912-DC works with all ASR 9912 routers running Cisco IOS XR Software 7.5.1 or later.
Why Opt for the ASR-9912-DC?
- Mission-critical reliability: Built for environments where uptime is non-negotiable.
- Long-term cost savings: Higher efficiency reduces power bills by up to 20% compared to AC alternatives.
- Future-ready design: Supports next-gen line cards without requiring power infrastructure upgrades.
For verified compatibility and procurement options, visit the ASR-9912-DC product page.
Final Perspective
In my decade of designing carrier-grade networks, I’ve seen DC power’s role in ensuring uptime firsthand. The ASR-9912-DC isn’t just a power supply—it’s a strategic investment for organizations prioritizing resilience. While AC modules suffice for generic setups, the ASR-9912-DC’s efficiency and redundancy make it indispensable for networks where a single outage could cost millions. If your operations demand bulletproof reliability, this module isn’t optional; it’s essential.