AIR-CAB100ULL-R: Why Is It Cisco’s Preferred Ultra-Low Loss Antenna Cable?

Core Functionality and Design

The ​​AIR-CAB100ULL-R​​ is a ruggedized, ultra-low loss coaxial cable engineered for Cisco Aironet antennas and outdoor wireless deployments. Designed to minimize signal attenuation over long distances, it ensures reliable RF performance in harsh environments. Its double-ended N-type connectors and weatherproof construction make it ideal for bridging high-gain antennas to access points or controllers.

Technical Specifications

• ​​Impedance:​​ 50 Ohm, optimized for Cisco’s 2.4 GHz, 5 GHz, and 4.9 GHz public safety bands.
• ​​Frequency Range:​​ 0–6 GHz, supporting 802.11a/b/g/n/ac and LTE backhaul applications.
• ​​Cable Type:​​ LMR-400 equivalent with a ​​0.28 dB/m loss at 2.5 GHz​​, outperforming standard RG-8X cables.
• ​​Durability:​​ UV-resistant polyethylene jacket, rated for -55°C to +85°C and 100% waterproof via heat-shrink connectors.
• ​​Length:​​ 100 feet (30.5 meters), reducing the need for splices in long-haul setups.

Key Applications

• ​​Outdoor Wireless Backhaul:​​ Connects directional antennas for point-to-point links in rural or industrial areas.
• ​​Public Safety Networks:​​ Ensures minimal signal loss for mission-critical LTE communications.
• ​​High-Interference Environments:​​ Shielding minimizes EMI from heavy machinery or power lines.

Addressing Common Deployment Questions

​​Q: Is this cable compatible with Cisco’s AIR-ANT2544V-N antennas?​​
Yes. Its N-type connectors align with Cisco’s antenna and radio interfaces.

​​Q: Can it be buried directly underground?​​
While waterproof, Cisco recommends using conduit for burial to prevent rodent damage.

​​Q: What’s the maximum bend radius?​​
1.25 inches (3.2 cm) to avoid compromising the dielectric core.

Advantages Over Generic Alternatives

• ​​Cisco-Validated Performance:​​ Pre-tested to maintain ≤1.5:1 VSWR (Voltage Standing Wave Ratio) across all supported bands.
• ​​Time Savings:​​ Factory-terminated connectors eliminate field crimping errors, which can degrade signal integrity.
• ​​Compliance:​​ Meets MIL-STD-810G for shock/vibration resistance and NEC Article 810 for lightning protection.

Sourcing and Availability

For guaranteed authenticity and bulk pricing, purchase the AIR-CAB100ULL-R directly from itmall.sale’s Cisco catalog.

Field-Tested Insight

In a recent deployment for a coastal surveillance network, generic cables failed within six months due to saltwater corrosion. The ​​AIR-CAB100ULL-R​​, however, showed no degradation after 18 months—proof that Cisco’s engineering tolerances matter. While cheaper options tempt budget-conscious projects, they risk costly rework in critical scenarios. For engineers who prioritize Mean Time Between Failures (MTBF) over upfront savings, this cable is a non-negotiable asset.