Home / Products / Optical Fiber Cables / DIRECT BURRIED TYPE OPTICAL FIBER CABLE

DIRECT BURRIED TYPE OPTICAL FIBER CABLE   Product Description This cable has been designed for long haul direct / backbone application. Our stranded loose tube design provides stable performance over a wide temperature range and is compatible with any telecommunications-grade optical fiber. Direct Buried type Fiber Optical Cable are designed for easy and economical installation. The stranded loose tubes contain thixotropic jelly but the cable core is based on dry-block construction. Incorporation of Dry Water Block Technology eliminates the need for traditional jelly filled water blocking methods, thus providing efficient and craft-friendly cable installation. The thixotropic jelly is used to fill the buffer tubes to prevent water ingress. Steel Tape Armoring provides a rodent protection, length markings in meters for easy determination of cable length. Extra Strength cable can also be delivered with Peripheral Strength Members. Features & Application Excellent optical, mechanical & environmental performance High strength-to-weight ratio CSM dielectric type – Fiber Reinforced Plastic Dry block construction High tensile strength High crush strength Corrosion resistance KINK resistance Very light weight Very flexible & small bending radius Long haul / backbone application Junction communication systems All dielectric applications CATV applications   Cable Construction Detail   Construction Parameters Fiber Count 02 – 216 Fibers No. of Loose Tube 04 No. of Filler 02 No. of Fiber in each Tube 06 Loose Tube Material Polybutylene Terephthalate (PBT) Loose Tube Filling Material Thixotropic Jelly Filler Material Medium Density/High Density Polyethylene (MDPE/HDPE) Central Strength Member Fiber/Glass Reinforced Plastic (FRP/GRP) Armoring Corrugated Steel Tape Armoring Peripheral Strength Member (if required) Aramid / Glass Yarn Core Moisture Protection Methodology Dry Block Design, Water Blocking Yarns/Tapes Outer Sheath Material High Density Polyethylene (HDPE) Printing on Outer Sheath Engraved Hot Foil or Inkjet Printing Nominal Cable Delivery Length (km) 4 KM ± 3% Mechanical Characteristics Tensile Strength (N) 3,000 Crush Strength (N) 2,500 Minimum Bending Radius (mm) 10 x outer diameter of Cable without load 20 x outer diameter of Cable with load Temperature Operating Range -20 to +70°C Optical Characteristics     Fiber Color Coding As per TIA/EIA-598A Fiber Type Single Mode G.652.D Mode Field Diameter, µm 8.6 to 9.5 ± 0.7 Cladding Diameter, µm 125 ± 1 Core Clad concentricity error (µm) < 1.0 Clad Non-circulatory % < 2 % Chromatic Dispersion, ps/ (nm.km) < 3.5 at 1310 < 18 at 1550 Polarized Mode Dispersion ps/√km < 0.50 Cut-off Wavelength, nm < 1260 Cabled Attenuation @ 1310 nm (dB/km) 0.35 (average) Cabled Attenuation @ 1550 nm (dB/km) 0.21 (average)   «Back