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Home>Products>Special Optical Cable>Optical-Electrical Composite Cable for Access Network
The GDTA53 optical-electrical composite cable structure is constructed as follows: Single-mode or multimode fibers are placed into loose tubes made of high-modulus polyester material, with the tubes filled with waterproof compound. The core''''s center is a metallic strength member, which for certain fiber counts is additionally coated with an extruded layer of polyethylene. The loose tubes and insulated copper conductors of required specifications are stranded around the central strength member to form a compact circular core, with interstices filled with water-blocking material. A plastic-coated aluminum tape is longitudinally applied before extruding an inner polyethylene sheath. Subsequently, a corrugated double-sided chrome-plated plastic-coated steel tape (PSP) is longitudinally applied over the inner sheath, followed by extrusion of an outer polyethylene jacket to complete the cable.
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- Product Features
- Optical Cable Structure Diagram
- Product Standards
1. Optical-electrical integration solves equipment power supply and signal transmission issues, enabling centralized monitoring and maintenance of device power.
2. Enhances power manageability and reduces power coordination and maintenance efforts.
3. Lowers procurement costs and saves construction expenses.
4. Precisely controlled fiber excess length ensures excellent tensile strength and temperature characteristics of the cable.
5. Primarily used in distributed base station DC remote power supply systems, connecting BBU and RRU.
6. Suitable for direct burial installation.
Structural Parameters
Cross-section (mm2) | Max DC resistance per conductor (20°C) (Ω/km) | Insulation resistance(20 ℃) (MΩ.km) | Dielectric strength KV, DC 1min | ||
Between insulated conductor and other metals in cable | Between conductors |
| Between conductor and screen wire | ||
1.5 | 13.3 | ≥10000 | 5 | 5 | 3 |
2.5 | 7.89 | ||||
4.0 | 4.95 | ||||
5.0 | 3.88 | ||||
6.0 | 3.30 | ||||
8.0 | 2.47 | ||||
Optical Characteristics
光纤类型 Fiber Type | G.652 | G.655 | 50/125 μm | 62.5/125 μm | |
衰减 Attenuation（+20℃） | @ 850 nm | ≤ 3.3 dB/km | ≤ 3.5 dB/km | ||
@1300 nm | ≤ 1.2 dB/km | ≤ 1.2 dB/km | |||
@1310 nm | ≤ 0.36 dB/km | ≤ 0.40 dB/km | |||
@1550 nm | ≤ 0.22 dB/km | ≤ 0.23 dB/km | |||
带宽 Bandwidth | @ 850 nm | ≥ 500 MHz·km | ≥ 200 MHz·km | ||
@1300 nm | ≥ 500 MHz·km | ≥ 500 MHz·km | |||
数值孔径 Numerical Aperture | 0.200 ± 0.015 NA | 0.275 ± 0.015 NA | |||
光缆截止波长Cable Cut-off Wavelength lcc | ≤ 1260 nm | ≤ 1450 nm | |||
Application: Duct, Aerial
Storage and Operating Temperature: -40℃ to +70℃
The power conductor of the GDTS cable from LeFei Optoelectronic Co., Ltd. complies with GB/T 3956-2008, and its electrical performance meets GB/T 5023.3-2007 standards.
