Outdoor fiber optic cable is a type of cable designed for outdoor environments to transmit optical signals. It is widely used in telecommunications, networking, surveillance, and other fields. Below is a detailed introduction:
Structural Features
Optical Fiber: As the core component, it is responsible for transmitting optical signals. Based on type, it can be divided into single-mode fiber and multi-mode fiber. Single-mode fiber is suitable for long-distance, high-speed transmission; multi-mode fiber is commonly used in short-distance, relatively low-speed scenarios.
Strength Member: Typically composed of high-strength steel wires or aramid fibers, this component enhances the mechanical strength of the cable. It enables the cable to withstand external forces such as tension and bending during installation and operation, protecting the optical fiber from damage.
Outer Sheath: The outer sheath of outdoor fiber optic cables possesses multiple properties to adapt to various outdoor environments. Commonly made from polyethylene (PE) or polyvinyl chloride (PVC), it provides waterproofing, moisture resistance, UV protection, corrosion resistance, and rodent bite resistance. For cables used in special environments, the jacket may also feature flame retardancy and high/low temperature resistance.
Filler Material: Located between the optical fiber and the sheath, it serves as a waterproof barrier and shock absorber. This prevents moisture intrusion into the fiber and reduces the impact of external forces on the fiber.