Fiber Optic Cables

Stranded Loose Tube GYTA Optical Cable

Stranded Loose Tube GYTA Optical Cable

Type:Fiber Optic Cables

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  • Description
  • Parameter
Stranded Loose Tube Light-armored (Aluminum Tape) Cable (GYTA)

Brellet Telecom’s GYTA construction is that 250um fibers are positioned in a loose tube which is made of high modulus plastic and filled with a water-resistant filling compound; A steel wire, sometimes sheathed with polyethylene (PE) for cable with high fiber count, locates in the center of core as a metallic strength member; Tubes are stranded around the strength member into a compact and circular cable core; The APL (Aluminum Tape) is longitudinally applied over the cable core which is filled with the filling compound to protect it from water ingress; The cable is completed with a polyethylene (PE) sheath.

Cable Structure

  • Good mechanical and temperature performance
  • High hydrolysis resistance and high strength loose tube
  • Good crush resistance and flexibility
  • High tensile strength ensured by steel wire
  • APL moisture barrier ensures the cable watertight
  • PE sheath protects cable from ultraviolet radiation

  • Long-distance communication and interoffice communication
  • It is especially suitable for the occasions with high requirement on damp-proof performance, such as duct
Laying Method
  • Duct
  • Aerial
  • YD/T 901
  • IEC 60794-1

Cable Specification
Parameters Specification
Fiber Count 2~288
Tensile Strength (N) Long Term 600
Short Term 1500
Crush Resistance (N/100mm) Long Term 300
Short Term 1000
Bending Radius (mm) Dynamic 20D
Static 10D
Fiber Type G652D G655 G651A1
Cable Attenuation (dB/km) @850nm     ≤3.3 ≤3.5
@1300nm     ≤1.2 ≤1.2
@1310nm ≤0.36 ≤0.40    
@1550nm ≤0.22 ≤0.23    
Bandwidth (MHz·km) @850nm     ≥500 ≥200
@1300nm     ≥500 ≥500
Numerical Aperture     0.200±0.015 NA 0.275±0.015 NA
Cable Cut-off Wavelength (nm) ≤1260 ≤1450    
Operating Temperature (℃) -40~+70
Storage Temperature (℃) -40~+70

Fiber Identification
NO. 1 2 3 4 5 6 7 8 9 10 11 12
Fiber Color Blue Orange Green Brown Slate Natural Red Black Yellow Violet Pink Aqua

Package & Length
  • Wooden shaft
  • 1KM, 2KM or 3KM/drum or customized
Ordering Information