Times Microwave LMR-900-FR Low Smoke Coax Cable
LMR-900-FR (Flame Retardant) CMR Coaxial cable is the ideal solution for large-scale indoor RF infrastructure, combining the ultra-low signal attenuation of the LMR-900 series with a FRPE jacket specifically engineered to meet strict indoor fire safety codes. This cable ensures that your critical wireless systems maintain maximum performance while adhering to essential safety standards for commercial and enterprise buildings. Features a specialized Flame-Retardant jacket that meets critical fire safety standards for installations within walls, risers, and plenum spaces. Soyuztec Trading provides customized cables and connectors, which we will prepare precisely to meet your requirements.
High Power Handling: Due to its low loss and large conductor size, the CMR coaxial cable can safely handle high-power RF signals, suitable for enterprise and commercial transmission systems.
Buy 50 Ohm Coaxial Cable – UL/NEC CMR Rated
Crucially, it offers Superior Fire Safety, featuring a Non-Halogen, Low Smoke, Fire Retardant FRPE Jacket, which makes it the safest choice for installation within buildings.
| Feature | Value (US/Imperial) | Value (Metric) | Note |
| Impedance | 50 Ohms | 50 Ohms | Standard for RF/Wireless |
| Jacket Diameter | 0.870 in | 22.10 mm | Optimized for low loss |
| Jacket Material | Flame-Retardant PVC/PE | Flame-Retardant PVC/PE | Mandatory for indoor safety |
| Fire Rating | Specify actual rating (e.g., CMR, CMP) | Specify actual rating | Crucial for code compliance |
| Velocity of Propagation (VoP) | 89% | 89% | Key to low loss |
| Attenuation @ 900 MHz | 1.9 dB 100 ft | 6.2 dB100 m | Highlight low-loss benefit |
Ideal Applications
- In-Building Wireless (IBS/DAS): Primary vertical and horizontal backbone connections in Distributed Antenna Systems (DAS) for cellular and Wi-Fi coverage within large commercial buildings, arenas, and airports.
- Plenum & Riser Applications: Used in HVAC air handling spaces (plenum) and vertical floor-to-floor wiring (riser) where strict fire codes mandate flame-retardant materials.
- RF Jumper Assemblies: High-performance, low-loss interconnects between sensitive indoor equipment and antennas.
- Enterprise Wireless Networks: Core links for large-scale enterprise Wi-Fi and specialized wireless systems (e.g., public safety radio).


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