CAB-L195-15-TNC=: What Makes This Cisco Coaxial Cable Unique for RF Applications?

Defining the CAB-L195-15-TNC=

The ​​CAB-L195-15-TNC=​​ is a Cisco-engineered coaxial cable designed for ​​radio frequency (RF) signal transmission​​ in wireless and cellular network deployments. It features ​​TNC connectors​​—threaded, weather-resistant interfaces ideal for secure connections in high-vibration or outdoor environments. This cable is commonly used with Cisco’s industrial routers, small-cell base stations, and IoT gateways requiring stable RF performance.

Key Technical Specifications

• ​​Connector Type​​: TNC (male) on both ends, with ​​50-ohm impedance​​ for minimal signal loss.
• ​​Cable Type​​: ​​Low-loss LMR-195 equivalent​​, optimized for frequencies up to ​​6 GHz​​.
• ​​Length​​: 15 feet (4.57 meters), pre-terminated for plug-and-play installation.
• ​​Shielding​​: Dual-layer foil and braid for ​​95% EMI/RFI protection​​.
• ​​Durability​​: UV-resistant PVC jacket rated for -40°C to +85°C operation.

​​Why TNC over BNC?​​ TNC’s threaded coupling prevents accidental disconnections in mobile or industrial setups, unlike push-and-twist BNC connectors.

Primary Use Cases

1. ​​Wireless Backhaul​​: Connects Cisco IR1101 or IR1800 routers to antennas for LTE/5G private networks.
2. ​​SCADA Systems​​: Ensures reliable RF communication in oil/gas pipelines or utility grids.
3. ​​Public Safety Networks​​: Links Cisco ruggedized access points to vehicle-mounted antennas for first responders.

Addressing Critical User Questions

​​Q: Is this cable compatible with non-Cisco antennas?​​
Yes, provided the antenna has a TNC female port. However, Cisco recommends testing for impedance mismatches in mixed-vendor setups.

​​Q: Can it handle high-power RF signals?​​
Up to ​​100W average power​​ at 2 GHz, making it suitable for most cellular and Wi-Fi applications. Avoid exceeding this threshold to prevent cable degradation.

​​Q: How does it compare to generic coaxial cables?​​
Cisco’s ​​precision-tuned connectors​​ and ​​low-loss dielectric core​​ reduce voltage standing wave ratio (VSWR) to <1.5:1, ensuring minimal signal reflection.

Where to Source the CAB-L195-15-TNC=

For guaranteed performance in licensed RF bands, the “CAB-L195-15-TNC=” is available here, alongside Cisco-certified wireless accessories.

Field Deployment Insight

During a recent deployment for a coastal LTE network, the CAB-L195-15-TNC= outperformed third-party cables in saltwater-exposed environments. While its upfront cost is higher, the absence of signal degradation over 18 months eliminated costly tower reclimbs for maintenance. For mission-critical RF links, investing in factory-terminated cables like this one avoids the pitfalls of field-assembled connectors, which often introduce impedance mismatches. Always prioritize cables with explicit frequency and power ratings matching your equipment’s output specs.