Spring Optical Communication is one of the largest and best toneable gel-filled flat drop cable manufacturers and suppliers with rich experience. Welcome to buy our high quality products or wholesale our customized toneable gel-filled flat drop cable in stock with our factory. Also, free sample is also available if necessary.
Underground Traceable FTTH Drop Cable with Maximum Water Protection
Product Overview
The Toneable Gel-filled Flat Drop Cable is a premium FTTH drop cable designed for underground fiber networks that require both superior moisture protection and easy cable locating capability.
It integrates a gel-filled loose tube structure with a 24 AWG copper tone wire, enabling fast underground detection while ensuring long-term environmental durability.
This makes it an ideal solution for utility operators and telecom providers managing complex buried fiber infrastructure.
Key Features
Dual Protection Design (Gel + Tone Wire)
Combines:
Gel-filled water blocking
Copper tone wire for locating
Easy Underground Cable Detection
Integrated 24 AWG copper conductor allows:
Fast route identification
Reduced excavation cost
Faster maintenance response
Fully Dielectric Fiber Structure
Fiber section remains dielectric:
No grounding required
Safer deployment
Reduced electrical risk
High Mechanical Strength Flat Design
Two G-FRP rods ensure:
High tensile strength
Excellent crush resistance
Stable buried performance
UV and Environmental Resistance
HDPE jacket protects against:
Soil stress
Moisture
UV radiation
Mechanical abrasion
Applications
This cable is ideal for:
Underground FTTH networks
Smart city infrastructure
Utility communication systems
Municipal broadband projects
Rural buried fiber deployments
Product Structure Description
This cable integrates:
Gel-filled loose tube for water blocking
24 AWG copper tone wire for detection
Two parallel G-FRP strength members
HDPE flat protective sheath
It is specifically engineered for underground fiber networks requiring both high durability and easy maintenance tracking.
Advantages for Underground Networks
Fast cable locating after burial
Reduced maintenance excavation cost
High moisture resistance
Long service life underground
Stable optical performance in harsh soil conditions
Application Scenarios
Smart City Underground Networks
Supports dense urban fiber infrastructure.
Utility Fiber Systems
Used in power, gas, and transport communication systems.
Municipal Broadband Projects
Ideal for city-wide fiber deployment.
Rural Underground FTTH
Reliable for long-distance buried fiber links.
FAQ
Q: What is a toneable gel-filled cable?
A: It is a buried fiber cable with gel protection and a copper tone wire for locating.
Q: Why combine gel and tone wire?
A: Gel protects against water, tone wire helps locate underground cable.
Q: Is it suitable for direct burial?
A: Yes, it is designed specifically for underground installation.
Why Choose Us
We provide:
Full FTTH drop cable portfolio
High-quality gel-filled manufacturing
Stable tone wire integration
OEM/ODM support
Fast global delivery
Looking for a high-end underground FTTH solution?
Contact us for technical datasheets, samples, and pricing.
Hot Tags: toneable gel-filled flat drop cable
General Characteristics
| Item | Specification |
|---|---|
| Fiber Count | 1 / 2 / 4 / 6 / 8 / 12 fibers (up to 24 optional) |
| Fiber Type | G652D / G657A |
| Loose Tube Material | PBT |
| Water Blocking | Gel-filled |
| Strength Member | G-FRP |
| Tone Wire | 24 AWG Copper Wire |
| FRP Diameter | 1.6 ± 0.1 mm |
| Outer Sheath Material | HDPE |
| Cable Dimensions | 4.5 × 9.8 mm ± 0.3 |
| Net Weight | 41 kg/km |
Optical Fiber Characteristics
| Item | Specification |
|---|---|
| Attenuation @1310nm | ≤ 0.36 dB/km |
| Attenuation @1550nm | ≤ 0.22 dB/km |
| Cut-off Wavelength | ≤ 1260 nm |
| Zero Dispersion Wavelength | 1300–1324 nm |
| Chromatic Dispersion | ≤ 18 ps/nm·km @1550nm |
| Mode Field Diameter | 9.2 ± 0.4 μm @1310nm |
| Cladding Diameter | 125 ± 1 μm |
| Coating Diameter | 245 ± 5 μm |
| Proof Test | ≥ 0.69 GPa |
Mechanical & Environmental Performance
| Test Item | Standard | Requirement |
|---|---|---|
| Tensile Strength | IEC 60794-1-E1 | 400 / 1350 N |
| Crush Resistance | IEC 60794-1-E3 | 3000 N/100mm |
| Impact Resistance | IEC 60794-1-E4 | No damage |
| Repeated Bending | IEC 60794-1-E6 | Stable performance |
| Torsion Test | IEC 60794-1-E7 | ±180° |
| Water Penetration | IEC 60794-1-F5B | No leakage |
| Temperature Cycling | IEC 60794-1-F1 | Stable transmission |
Temperature Range
Operating: -40°C to +60°C
Storage: -50°C to +70°C
Installation: -20°C to +60°C
Minimum Bending Radius
Static: ≥ 10 × cable diameter
Dynamic: ≥ 20 × cable diameter
Fiber Identification Color Code
| Fiber No. | Color |
|---|---|
| 1 | Blue |
| 2 | Orange |
| 3 | Green |
| 4 | Brown |
| 5 | Slate |
| 6 | Natural |
| 7 | Red |
| 8 | Black |
| 9 | Yellow |
| 10 | Violet |
| 11 | Pink |
| 12 | Aqua |
Compliance & Standards
Telcordia GR-20
IEC 60794 series
ANSI/ICEA S-87-640
Packaging & Marking
Wooden drum packaging
Single continuous length
Sealed cable ends
Minimum 3m reserve length per end








