Fiber Optic Cables  
 

Optical & Geometrical Properities for Multimode Fibers

Parameter 50/125 62.5/125 Units
Fiber Code 5 4 6 -
ISO/IEC 11801 Classifi cation(2)O       -
Attenuation, Loose Tube Cables      
@850nm ≤3.0 ≤3.0 dB/km
@1300nm ≤0.8 ≤0.8 dB/km
Attenuation, Tight Buffer and Semi-tight Cables      
@850nm ≤3.0 ≤3.5 dB/km
@1300nm ≤1.0 ≤1.0 dB/km
Bandwidth﹡ @850nm ≥500 ≥2000 ≥200 MHz*km
  @1300nm ≥800/500 ≥500 ≥500/600 MHz*km
Numerical Aperture 0.20±0.015 0.275±0.015 -
Core Diameter 50±3 62.5±3 um
Cladding Diameter 125±2 125±2 um
Core/Cladding Concentricity ≤1.5 ≤1.5 um
Core Non-Circularity ≤6 ≤6 %
Cladding Non-Circularity ≤2 1 ≤2 1 %
Core/Cladding Offset ≤3 ≤3 um
Coating Diameter 245±10 245±10 um
Proof-Test Level 100 (0.7) 100 (0.7) Kpsi (GN/m2)
Fatigue Coeffi cient ≥20 ≥20  
Temperature Dependence between 0℃ - 70℃ 0.1 0.1 dB