Description

This armored RS485 cable is purpose‑built for stable, long‑distance serial communication where conventional control cables fall short. A precision‑twisted pair core of 24AWG stranded tinned copper insulated with low‑capacitance foamed PE maintains the 120 Ω characteristic impedance and reduces signal distortion over extended runs, while a two‑layer shield—100% aluminum foil plus a high‑coverage tinned‑copper braid—guards against EMI from high‑power equipment. 

A steel‑wire‑braid armor adds mechanical strength against crush, impact, and rodent attack without sacrificing flexibility, and LSZH inner and outer jackets provide low smoke and zero halogens for enhanced fire performance in public and confined spaces. Rated to 300 V, −20°C to +60°C, and designed with a ≥10×OD bend radius, it delivers dependable communications for RS485 multi‑drop networks in tunnels and rail systems, BMS fire and alarm lines, heavy machinery areas, oil and gas facilities, and other harsh or high‑EMI environments.

Specifications

• Type: RS485/RS422 armored data cable, double-shield, LSZH
• Conductor: 24 AWG stranded tinned copper
• Pairs/Insulation: Twisted pairs, foamed PE (low capacitance)
• Shielding: 100% Al-foil + tinned-copper braid (high coverage)
• Armor: Steel wire braid (crush/rodent resistant)
• Jacket/Color: LSZH, flame-retardant; black
• Impedance: 120 Ω
• DC R: ~24 Ω/1000 ft (≈78.7 Ω/km)
• Capacitance: C–C ~42 pF/m; C–S ~75–80 pF/m
• Velocity: ~78%
• Voltage: 300 V
• Temp: −20 to +60°C
• Bend radius: ≥10× OD
• EMI/Mechanical: High EMI immunity; armored for impact/crush
• Compliance: LSZH low-smoke, halogen-free
• Install: Indoor, tunnels/transit/shafts/conduits, harsh industrial
• Applications: RS485/RS422 bus, PLC/automation, railway signaling, BMS/fire, access control, high-EMI factory lines