Types of Domestic Optical Cable Products

Domestic optical cables include indoor, outdoor, FTTH, air-blown micro, and armored fiber optic cables, each designed for specific installation environments and performance requirements.Indoor Optical CablesIndoor fiber optic cables are designed to meet fire safety and building code requirements, with jackets rated as LSZH (Low Smoke Zero Halogen), riser (CMR), or plenum (CMP) depending on the installation environment . Common types include:Tight-buffered single-core cables: Ideal for short-distance indoor runs and patch panels.Mini-bundle and branch cables: Allow flexible routing in office or residential buildings.Armored indoor cables: Provide extra protection against mechanical damage in high-traffic areas.Outdoor Optical CablesOutdoor cables are built to withstand environmental stress, including moisture, UV exposure, and mechanical tension . Key types include:Central tube cables (e.g., GYXTW): Fibers are packed in a gel-filled tube, offering water-blocking and easy splicing for duct or direct-burial installations.Layer stranded cables (e.g., GYTS, GYTA, GYTY53): Multiple loose tubes helically arranged around a strength member, suitable for long aerial spans, underground trunk routes, and shallow-water submarine sections.Armored variants: Include steel tape or corrugated armor for crush resistance in direct-burial applications.Specialized CablesCertain applications require specialized designs:ADSS (All-Dielectric Self-Supporting): Metal-free cables for installation alongside high-voltage power lines, including anti-rodent variants.OPGW (Optical Ground Wire): Combines lightning protection with fiber communication on transmission towers.FTTH Drop Cables: Flat "butterfly" profile for the last 50–200 meters into homes or offices, lightweight for self-installation.Air Blown Micro Cables: Low-fiber-count cables (2–24 cores) designed to be pushed through microducts using compressed air, allowing easy upgrades without excavation.Fiber TypesFiber optic cables are classified by mode and core size:Single-mode fibers: Small core (~9 µm), suitable for long-distance, high-speed transmission.Multimode fibers: Larger cores, supporting multiple light paths, ideal for shorter distances. Common types include OM1, OM2, OM3, and OM4, with increasing bandwidth and distance capabilities .Ribbon and Gel-Free CablesRibbon cables: High-density planar arrays of fibers, often gel-free, allowing easier handling and splicing.Rollable ribbons: Flexible, space-saving design for high fiber density installations, reducing installation costs and enabling longer pulls .SummaryDomestic optical cable products are diverse, tailored for indoor, outdoor, and specialized applications. Selection depends on factors like installation environment, distance, bandwidth requirements, mechanical protection, and fire safety compliance. Popular solutions include tight-buffered indoor cables, central tube and stranded outdoor cables, FTTH drop cables, air-blown microcables, and armored or ribbon designs for high-density or harsh environments .