
SINGLE MODE G.652.D DUCT TYPE OPTICAL FIBER CABLE
Duct non-metallic dry-core optical fiber cables are built around a proven loose-tube design that protects fibers from environmental and mechanical forces.
These cables are lightweight, have a small diameter for duct and conduit installation and are manufactured to international standards.
Applications
- Inter-office trunking
- Data & video transmission
- Control & alarm systems (SCADA / telemetry)
- Suitable for laying in ducts and concrete
Cable Construction (summary)
- Loose tube filled with gel
- Stranded around a central strength member
- Water-blocking materials (yarns / tapes)
- Peripheral strength members (glass yarn if required)
- Polyethylene outer jacket (HDPE/MDPE)
CROSS SECTIONAL DRAWING

Technical Characteristics:
Technical Characteristics
- Unique extrusion technology provides fibers in the tube with good flexibility and bending endurance.
- Controlled fiber excess length method improves mechanical & environmental performance.
- Multiple water-blocking filling provides a dual water-blocking function.
- Good crush resistance for duct installations.
Features & Benefits
- Suitable for conduit and pipeline long-haul applications
- Supports all grades of single-mode and multimode fibers
- Can be laid near power cables
- Ideal for telemetry & SCADA links for oil, gas and electricity networks
Construction Parameters
| Parameter | Specification |
|---|---|
| Fiber Type | ITU-T G.652.D |
| Fiber Count | 02 to 144 Fibers |
| Loose Tube Material | PBT |
| Loose Tube Filling Material | Thixotropic Jelly Terephthalate (PBT) |
| Central Strength Member | Fiber Reinforced Plastic (FRP) |
| Peripheral Strength Member (if required) | Glass Yarn |
| Filler Material | Polyethylene |
| Core Moisture Protection Method | Dry block design; water-blocking yarns / tapes |
| Outer Sheath Material | Medium / High Density Polyethylene (HDPE/MDPE) |
| Printing on Outer Sheath | Engraved hot foil ink or inkjet printing |
| Drum Length | 2000 m or 4000 m ± 5% |
Optical Characteristics
| Characteristic | Specification |
|---|---|
| Single Mode Fiber | CORNING SMF-28e+ G.652D |
| Fiber Colour Coding | As per TIA/EIA-598A & C |
| Mode Field Diameter (µm) | 8.6 to 9.5 ± 0.7 |
| Cladding Diameter (µm) | 125 ± 1 |
| Core-Clad Concentricity Error (µm) | <= 0.8 µm |
| Cladding Non-Circularity (%) | <= 2% |
| Cable Cut-off Wavelength (nm) | <= 1260 nm |
| Chromatic Dispersion (ps / nm·km) | <= 3.5 @ 1310 nm; <= 18 @ 1550 nm |
| Cabled Attenuation @ 1310 nm (dB/km) | < 0.35 (average) |
| Cabled Attenuation @ 1550 nm (dB/km) | < 0.21 (average) |
| Polarized Mode Dispersion (PMD) ps/√km | < 0.2 |
Mechanical Characteristics
| Test / Characteristic | Value |
|---|---|
| Tensile Strength (N) (Max) | 3000 |
| Minimum Bending Radius | 10 × outer diameter (without load) |
| Diameter of cable (mm) | 20 × outer with load |
| Crush Strength (N) (Max) | 2500 |
| Temperature Range | -20 °C to +70 °C |
Note: All Mechanical & Environmental Test Shall be Conducted as per IEC-60794
Standard.
You can get the price of fiber optics cable in Pakistan by emailing us at info@litech.com.pk, and we’ll respond with a quote within 24 hours. We offer a wide range of fiber optic cable prices in Pakistan, as with all of our products. We make every effort to provide you with the most competitive price for your fiber optic cable requirements. We also understand that you want your fiber optic cable in Pakistan delivered as soon as possible, so we make every effort to do so. We can provide standard-grade or high-grade fiber optic cable. We can assist you if you are looking for fiber optic cable in Pakistan. We have a wide range of prices available.
