Ranking of Non-Self-Supporting Indoor Optical Cables

Non-self-supporting indoor optical cables are typically ranked by fiber type, core count, jacket material, bend resistance, and compliance with ITU-T and IEC standards.Key Types and Characteristics

1. GJXH Indoor Bow-Type Drop Cables
   • Fiber Type: Single-mode (G.652D, G.657.A1/A2) and multi-mode (OM4)
   • Core Count: 1–8 cores
   • Strength Members: Metal
   • Jacket: LSZH (Low Smoke Zero Halogen)
   • Features: Non-self-supporting, suitable for indoor installations in offices or data centers, resistant to tight bends and fire hazards ( ).
2. GJXFH Bow-Type Drop Cables
   • Fiber Type: Single-mode (G.652D, G.657.A1/A2) and multi-mode (OM3)
   • Core Count: 1–4 cores
   • Strength Members: Non-metallic (GFRP/KFRP)
   • Jacket: LSZH
   • Features: Flexible, lightweight, ideal for indoor/outdoor transitions, non-self-supporting, good for areas with space constraints ( ).
3. Simplex Indoor Cables
   • Fiber Type: Single fiber for one-way transmission
   • Core Count: 1 fiber
   • Jacket: LSZH or PVC
   • Features: Cost-effective, easy to install in tight spaces, suitable for point-to-point connections in rooms or small office setups ( ).
4. Ribbon and Multi-Fiber Indoor Cables
   • Fiber Type: Single-mode or multi-mode
   • Core Count: 12–24 fibers or more
   • Jacket: LSZH, flame-retardant
   • Features: High-density applications, data centers, and backbone indoor networks; non-self-supporting, requires proper routing and support ( ).

Ranking Criteria

• Mechanical Performance: Tensile strength, crush resistance, and bend radius are critical for indoor deployment ( ).
• Fire Safety: LSZH jackets are preferred for compliance with building codes and fire regulations ( ).
• Flexibility and Installation Ease: Non-metallic strength members improve flexibility and reduce weight, making installation in ceilings or conduits easier ( ).
• Fiber Type and Bandwidth: Single-mode fibers (G.652D/G.657) are ideal for long-distance indoor links, while multi-mode fibers (OM3/OM4) support high-speed LAN and data center applications ( ).

Practical Recommendations

• For small office or residential setups, simplex or 1–4 core GJXFH cables are sufficient.
• For medium to large commercial buildings, 4–8 core GJXH cables provide a balance of flexibility and performance.
• For data centers or high-density networks, ribbon or multi-fiber cables with 12–24 cores are recommended, ensuring compliance with fire safety and bend radius standards. By evaluating fiber type, core count, jacket material, and mechanical properties, network designers can effectively rank non-self-supporting indoor optical cables for their specific indoor applications ( ).