DOUBLE-LAYER COMMUNICATION CABLE SPECIFICATIONS AND MODELS

This document outlines the specifications and models of double-layer communication cables. Double-layer cables are used in various applications, including telecommunications, data transmission, and network systems, to provide high-performance and reliable data transmission. The document details the physical characteristics, electrical properties, and mechanical properties of double-layer cables. Additionally, it provides information on the various models available, including their specific applications and performance characteristics. By referencing this document, users can choose the appropriate double-layer cable for their specific needs and ensure reliable data transmission.

In telecommunications, a double-layer communication cable (DLCC) is a type of cable that consists of two parallel layers of conductors, typically copper or fiber optic cables, enclosed within a common protective sheath. These cables are designed to carry signals between two points, such as between a central office and a customer's premises, or between two different buildings or locations. DLCCs are commonly used in both indoor and outdoor environments, offering high performance and reliability for a wide range of communication applications.

Double-Layer Communication Cable Specifications

DLCCs are typically specified by the number of conductors in each layer, the type of conductor material (copper or fiber optic), the diameter of the conductors, the spacing between the layers, and the protective sheath material. These specifications determine the capacity, performance, and durability of the cable. Common specifications include:

Number of conductors: The number of conductors in each layer determines the capacity of the cable. More conductors mean higher capacity but also increased cost and weight. Common conductor counts range from 12 to 240 conductors per layer.

Conductor material: Copper and fiber optic cables are the most common conductor materials. Copper cables offer high conductivity and are relatively inexpensive, but they have higher resistance and are heavier than fiber optic cables. Fiber optic cables provide high bandwidth, low resistance, and good durability, but they are more expensive and require specialized equipment for installation and maintenance.

Diameter of conductors: The diameter of the conductors affects the capacity and performance of the cable. Larger diameters provide higher capacity but also increase the weight and cost of the cable. Common conductor diameters range from 0.5 to 3.0 millimeters (mm).

Spacing between layers: The spacing between the two layers of conductors affects the crosstalk (interference between adjacent conductors) and bending radius (the minimum radius at which the cable can be bent without damage) of the cable. Tighter spacing reduces crosstalk but increases bending radius, while wider spacing increases crosstalk but reduces bending radius. Common spacing ranges from 1 to 5 millimeters (mm).

Protective sheath material: The protective sheath material protects the conductors from physical damage and environmental factors such as moisture and UV radiation. Common sheath materials include PVC (polyvinyl chloride), PE (polyethylene), and LLDPE (linear low-density polyethylene). These materials offer different levels of protection, durability, and environmental resistance.

Double-Layer Communication Cable Models

Several models of DLCCs are available to meet different application requirements. These models differ in terms of their specifications, performance, and cost. Common models include:

Copper-cored double-layer cable: This model has a copper core in each layer of conductors, offering high conductivity and low resistance. It is commonly used for high-speed data transmission and voice communication applications.

Fiber-cored double-layer cable: This model has a fiber optic core in each layer of conductors, providing high bandwidth, low resistance, and good durability. It is commonly used for long-distance communication and high-performance data transmission applications.

Hybrid double-layer cable: This model combines copper and fiber optic conductors in each layer, offering a balance of high performance and cost efficiency. It is commonly used for medium-speed data transmission and voice communication applications that require both indoor and outdoor use.

Conclusion

Double-layer communication cables offer high performance, reliability, and versatility for a wide range of communication applications. By understanding their specifications and models, you can choose the right type of DLCC to meet your specific needs. Whether you are looking for high capacity, low resistance, or good durability, double-layer communication cables provide an effective solution for your communication requirements.

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