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Toneable Dry Type Flat Drop Cable for Underground FTTH Networks

The Toneable Dry Type Flat Drop Cable is designed for underground FTTH access networks that require reliable fiber transmission and convenient cable route identification. Integrating a 24 AWG copper tone wire with a fully dielectric flat drop cable structure, it enables technicians to quickly locate buried cable routes using standard tracing equipment.

Featuring dry water-blocking technology, dual G-FRP strength members, and an HDPE outer sheath, this cable provides excellent moisture resistance, mechanical protection, and long-term stability. It is suitable for direct buried FTTH networks, municipal broadband systems, smart city projects, and other outdoor fiber access applications.

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  • Product Description
  • Specifications
  • Product Features
  • Product Video
  • Advantages

Product description

The Toneable Dry Type Flat Drop Cable combines advanced cable locating capability with a durable FTTH drop cable design. The integrated copper tone wire allows fast underground cable detection, reducing maintenance time and excavation costs during network upgrades or repairs.

The cable uses a dry water-blocking structure instead of gel filling, providing cleaner installation and easier handling during termination. Two parallel G-FRP strength members enhance tensile strength and crush resistance, while the HDPE flat sheath provides protection against moisture, UV exposure, abrasion, and harsh outdoor conditions.

With a compact flat structure and fully dielectric design, this cable offers flexible deployment for underground fiber networks while maintaining safe and stable optical performance.

Specifications

General Characteristics

ItemSpecification
Fiber Count1 / 2 / 4 / 6 / 8 / 12 fibers
Fiber TypeG652D / G657A
Cable StructureFlat Drop Cable
Water BlockingDry water-blocking yarn
Strength MemberG-FRP, 2 parallel rods
Tone Wire24 AWG Copper Wire
FRP Diameter1.6 ± 0.1 mm
Outer Sheath MaterialHDPE
Cable Dimensions4.5 x 9.8 mm ± 0.3
Net Weight41 kg/km

Optical Fiber Characteristics

ItemSpecification
Attenuation @1310nm0.36 dB/km
Attenuation @1550nm0.22 dB/km
Cut-off Wavelength1260 nm
Zero Dispersion Wavelength1300 to 1324 nm
Chromatic Dispersion18 ps/nm·km @1550nm
Mode Field Diameter9.2 ± 0.4 μm @1310nm
Cladding Diameter125 ± 1 μm
Coating Diameter245 ± 5 μm
Proof Test0.69 GPa

Mechanical & Environmental Performance

Test ItemStandardRequirement
Long-term TensileIEC 60794-1-E1400 N
Short-term TensileIEC 60794-1-E11350 N
Crush ResistanceIEC 60794-1-E33000 N/100mm
Impact ResistanceIEC 60794-1-E4No fiber damage
Repeated BendingIEC 60794-1-E6No attenuation increase
Torsion TestIEC 60794-1-E7±180 degrees
Water PenetrationIEC 60794-1-F5BNo leakage
Temperature CyclingIEC 60794-1-F1Stable performance

Temperature Range

Operating Temperature: -40C to +60C
Storage Temperature: -50C to +70C
Installation Temperature: -20C to +60C

Minimum Bending Radius

Static: 10 x cable diameter
Dynamic: 20 x cable diameter

Fiber Identification Color Code

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

Product Features

  • Integrated 24 AWG Tone Wire

    01

  • Dry Water-Blocking Structure

    02

  • Fully Dielectric Design

    03

  • High Strength G-FRP Reinforcement

    04

  • Durable HDPE Outer Jacket

    05

  • Compact Flat Cable Structure

    06

Product Video

Advantages

Underground FTTH Networks

Used for last-mile fiber connections requiring easy cable identification and reliable buried performance.

Municipal Broadband Projects

Used for city fiber infrastructure and smart city communication networks.

Utility Communication Systems

Provides stable fiber connectivity for power, transportation, and other utility networks.

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