The fibers,200/250um, are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. The tube is wrapped with a layer of PSP longitudinally. Between the PSP and the loose tube water-blocking material is applied to keep the cable compact and watertight. Two parallel steel wires are placed at the two sides of the steel tape. The cable is completed with a polyethylene (PE) sheath.

GYXTW cable complies with Standard YD/T 769-2010



  • These central loose tube optical fiber ribbon cables are suitable for installation in aerial or duct environment for communication between bureaus, metropolitan network, access network and is especially suitable for the situation where high-density fibers is expected.
  • Laying modes: Aerial & Conduit
  • Rural communication, local trunk line, CATV & computer networks system
  • Long-distance communication and LAN
  • Structure configurations:
  • Waterproofing layer between the steel tape and cable core.
  • Double-sided PE corrugated steel tape with PE sheath
  • Parallel double steel wire as strengthening member


  • Good mechanical and temperature performance
  • High strength loose tube that is hydrolysis resistant
  • Special tube filling compound ensure a critical protection of fiber
  • Crush resistance and flexibility
  • PSP enhancing moisture-proof
  • Two parallel steel wires ensure tensile strength
  • PE sheath gives excellent UV protection
  • Small diameter, light weight and friendly installation
  • Long delivery length

Technical Details:

G.652 G.655 50/125μm 62.5/125μm
@850nm ≤3.0dB/km ≤3.0dB/km
@1300nm ≤1.0dB/km ≤1.0dB/km
@1310nm ≤0.36dB/km
@1550nm ≤0.22dB/km ≤0.23dB/km
Bandwidth (Class A) @850 ≥500MHZ·km ≥500MHZ·km
@1300 ≥1000MHZ·km ≥600MHZ·km
Numerical Aperture 0.200±0.015NA 0.275±0.015NA

Cable Cut-off Wavelength λcc

≤1260nm ≤1480nm

Technical Parameters:


Cable Type

Fiber Count Cable Diameter
Cable Weight
Tensile Strength
Long/Short Term  N
Crush Resistance
Long/Short Term
Bending Radius
GYXTW-2~12 2~12 9.0 85 600/1000 500/1500 15D/30D
GYXTW-14~24 14~24 9.0 85 600/3000 1000/3000 15D/30D
GYXTW-2~12 2~12 10.0 105 1000/3000 1000/3000 15D/30D
GYXTW-14~24 14~24 10.0 105 1000/3000 1000/3000 15D/30D
GYXTW-26~36 26~36 14.0 190 1000/3000 1000/3000 15D/30D
GYXTW-38~48 38~48 15.0 216 1000/3000 1000/3000 15D/30D

Storage/Operating Temperature : -40℃ to + 70℃

Related Projects