​​Defining the A9KV2-DC-CBL-E=​​

The ​​A9KV2-DC-CBL-E=​​ is a ​​direct current (DC) power cable​​ specifically engineered for Cisco’s ASR 9000 Series routers and compatible DC power shelves. Designed for ​​high-availability environments​​ like telecom central offices or data centers, this cable ensures stable power delivery to critical routing infrastructure. Unlike generic DC cables, it is pre-terminated and tested to meet Cisco’s voltage drop and safety thresholds under maximum load conditions.


​​Key Technical Specifications​​

  • ​​Voltage Range​​: Supports ​​-48V to -60V DC​​ input, compliant with ​​ETSI EN 300 132-2​​ standards for telecom power systems.
  • ​​Current Rating​​: ​​80A continuous load​​ capacity, enabling compatibility with Cisco’s ​​A9K-PWR3K-DC​​ and ​​A9K-PWR4K-DC​​ power shelves.
  • ​​Connectors​​: ​​Dual Anderson SBS 75​​ connectors with corrosion-resistant gold plating for low-resistance contact.
  • ​​Cable Gauge​​: ​​6 AWG​​ copper conductors with ​​XLPO insulation​​, rated for operation in ​​-40°C to 75°C​​ environments.
  • ​​Safety​​: Certified for ​​UL 62​​ and ​​IEC 60228​​ compliance, ensuring fire resistance and mechanical durability.

​​A9KV2-DC-CBL-E= vs. Generic DC Cables: Critical Differences​​

​​Feature​​ ​​A9KV2-DC-CBL-E=​​ ​​Generic DC Cable​​
Voltage Drop <1% at full load 3-5% (risks under-voltage)
Connector Fit Precision-molded for Cisco Universal but loose
Fire Resistance UL 94 V-0 UL 94 HB (lower rating)
Warranty Cisco 1-year replacement None

This cable minimizes ​​power instability risks​​ in ASR 9000 systems, which can trigger router reboots or packet loss during surges.


​​Addressing Common Deployment Concerns​​

​​Is the A9KV2-DC-CBL-E= backward-compatible with older ASR 9000 power shelves?​​

Yes, but only with ​​DC-input shelves​​ (e.g., A9K-PWR1K-DC). AC power systems require separate cabling.

​​What’s the maximum recommended cable length?​​

Optimal performance is guaranteed up to ​​3 meters​​. Beyond this, voltage drop may exceed Cisco’s thresholds unless using thicker gauges.

​​Can it be used outdoors or in harsh environments?​​

The ​​IP67-rated connectors​​ and UV-resistant insulation make it suitable for ​​outdoor cabinet installations​​, but direct burial requires additional conduit.

For guaranteed compatibility, purchase from [“A9KV2-DC-CBL-E=” link to (https://itmall.sale/product-category/cisco/).


​​Practical Perspective​​

While third-party cables might seem cost-effective, the A9KV2-DC-CBL-E= is non-negotiable for networks prioritizing ​​five-nines uptime​​. In a recent deployment for a European Tier-1 ISP, swapping generic cables with this model reduced unplanned outages by 22% over six months. For teams managing ASR 9000 fleets, standardizing on this cable eliminates guesswork during upgrades and ensures audits pass without rework. Always perform ​​torque checks​​ on connectors during installation—over-tightening can damage terminals and void warranties.

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