• Overview
  • Specifications
  • Features & Benifits

PTCL Cables offers Duct Non-Metallic Dry Core Optical Fiber Cables; the construction of the non-metallic cables begins with our proven loose tube design. The loose tube provides protection against environment and mechanical forces. This is a light weight cable with smaller diameter and suitable enough for duct and conduit use. These cables are manufactured according to international standard and these cables fully conform to Pakistan Telecommunication Company Standard Specification TR-109 as applicable in Pakistan.


          Inter Office Trunking, Data, Video Transmission, Control / Alarm System - Light Weight and Flexible - Laying in Ducts and Concrete.


Cable Constructions:      

              Loose Tube filled with Gel - Stranded around Central Strength Member - Water Blocking Material - Peripheral Strength Members - Polyethylene Outer Jacket


Technical Characteristics

  • The unique extruding technology provides the fibers in the tube with good flexibility and bending endurance
  • The unique fiber excess length control method provides the cable with excellent mechanical and environmental properties
  • Multiple water blocking material filling provides dual water blocking function
  • Provides good crush resistance


Construction Parameters
Fiber TypeITU-T G.652D, G.655 & G.657
Fiber Count02 to 144 Fibers
Loose tube Filling MaterialThixotropic Terephthalate (PBT)
Central Strength MemberFiber/Glass Reinforced Plastic (FRP/GRP)
Peripheral Strength Member (if required)Aramid /Glass yarn
Filler MaterialPolyethylene
Core Moisture Protection MethodologyDry Block Design, Water Blocking Yarns/Tapes
Outer Sheath MaterialMedium/High Density Polyethylene (HDPE/MDPE)
Printing on Outer SheathEngraved Hot Foil Ink or Inkjet Printing
Drum Length2000 Meter & 4000 Meters ± 5%
Optical Characteristics
Single Mode Fiber







Fiber Colour CodingAs per TIA/EIA-598A&CAs per TIA/EIA-598A&CAs per TIA/EIA-598A&C
Mode Field Diameter, μm8.6 to 9.5 ± 0.79.6 ± 0.48.6 ± 0.4 μm @1310nm
Cladding Diameter, μm125 ± 1125 ± 0.7125±1μm
Core Clad Concentricity error, μm≤ 0.8 μm≤ 0.5≤0.6μm
Cladding Non-Circularity, %≤ 2 %≤ 0.7 %≤1%
Cable Cut-off Wavelength, nm≤1260 nm≤1450 nm≤1260 nm
Chromatic Dispersion (ps/nm.km)

≤ 3.5 @ 1310nm

≤ 18  @ 1550nm

2.0 - 5.5 @1530nm

4.5 - 6.0 @1565nm

5.8 - 11.2 @1625nm

≤ 3.5 @ 1310

≤ 18 @ 1550

Cabled Attenuation @ 1310 nm (dB/km)

Cabled Attenuation @ 1550 nm (dB/km)

≤ 0.35 (average)

≤ 0.21 (average)

≤ 0.22 dB/km (Max.Avg)

≤ 0.4

≤ 0.3

Polarized Mode Dispersion (PMD) ps/√km≤ 0.2≤ 0.2≤ 0.2
Mechanical Characteristics
Tensile Strength (N) (Max)3000
Minimum Bending Radius10 x outer without load
Diameter of cable (mm)20 x outer with load
Crush Strength (N) (max)2500
Temperature Range-20 °C to +70 °C


Features & Benefits

·         Suitable for conduit and pipelines for long haul applications

·         Supports all grades of single Mode & Multimode Fibers

·         It can be laid in vicinity of Power Cables

·         Telemetry and SCADA Links for Oil & Gas, electricity


·         Jelly Filled Cables option is also available for customers as per requirement

·         Multimode Fiber OM1 (62.5μm) & OM2 (50μm) option is also available for customers as per requirement

Cross Sectional Drawing

OFC Duct

Drawing is for reference only