What Is the ASR1KX-DC-950W-R=?

The ​​ASR1KX-DC-950W-R=​​ is a ​​950W DC power supply module​​ designed for Cisco’s ASR 1000 Series routers, specifically engineered to deliver ​​high-efficiency, redundant power​​ in mission-critical network environments. It ensures uninterrupted operation for applications like SD-WAN, VPN aggregation, and edge security.

Technical Specifications and Key Features

• ​​Input Voltage​​: Supports -48V to -60V DC input, compatible with standard telecom power grids.
• ​​Redundancy​​: Enables ​​N+1 power redundancy​​ when paired with a second unit, critical for maintaining uptime in ASR 1001-X, 1002-X, or 1006-X chassis.
• ​​Efficiency​​: Achieves ​​90% energy efficiency​​ under typical loads, reducing operational costs in 24/7 deployments.

Addressing Core User Concerns

​​Q: Is the ASR1KX-DC-950W-R= backward-compatible with older ASR 1000 routers?​​

A: Yes, but only in routers with ​​DC power shelf slots​​, such as the ASR 1006-X. Earlier AC-only chassis (e.g., ASR 1002) require a DC shelf retrofit.

​​Q: Can it support full chassis load with a single unit?​​

A: No—the 950W rating is sufficient for ​​mid-density configurations​​ (e.g., 2-3 service modules). High-density setups (6+ modules) require dual PSUs for redundancy and load balancing.

​​Q: How does it differ from the ASR1KX-AC-600W= model?​​

A: The DC-950W-R= provides ​​58% higher power output​​ and supports DC input, making it ideal for telecom central offices or industrial sites with DC infrastructure.

Operational Benefits for Network Teams

• ​​Resilience​​: Hot-swappable design allows replacement without downtime, even during peak traffic.
• ​​Scalability​​: Supports upgrades to 400G/100G service modules without power infrastructure overhauls.
• ​​Compliance​​: Meets ​​NEBS Level 3​​ and ETSI standards for harsh environmental conditions.

For teams modernizing power infrastructure, the ​​ASR1KX-DC-950W-R= is available here​​.

Final Insight

The ASR1KX-DC-950W-R= isn’t just a power supply—it’s a ​​cornerstone of network resilience​​ in an era where downtime equates to revenue loss. While DC power may seem niche, its dominance in telecom and industrial sectors makes this module a strategic choice for future-proofing high-stakes deployments.