Outdoor Metal Optical Cable Models

Outdoor metal optical cables are designed with steel or aluminum armoring for durability, supporting aerial, duct, and direct-burial installations.Common Types and Structures

1. Central Tube Steel Armored Cables These cables feature a central buffer tube containing the optical fibers, surrounded by corrugated steel tape or steel strength members. They are compact, flexible, and suitable for duct, direct burial, and riser applications. The central tube isolates fibers from environmental stress, ensuring stable transmission and easy fiber identification through color coding. Examples include Corning MPC central tube steel armor cables and GYXTW-type cables with steel-polyethylene bonded sheaths for pipeline and overhead laying . 2. Loose Tube Layer Stranded Cables In this design, fibers are housed in loose tubes that are stranded around a central strength member. The cable may include metallic reinforcement such as aluminum or steel tape for additional compressive strength and rodent protection. These cables are suitable for direct burial, duct, and aerial installations. Models include GYTA, GYTY53, and GYTA53, which differ in sheath material (aluminum or polyethylene) and armoring type . 3. Self-Supporting Aerial Cables Some outdoor metal optical cables are designed as self-supporting, often in an 8-shaped configuration with steel-polyethylene bonded sheaths. These cables, such as GYXTC8S, combine metal reinforcement and self-supporting structure, making them ideal for overhead aerial deployment without additional support .

Key Features

• Metallic Armoring: Provides mechanical protection, compressive strength, and rodent resistance.
• Environmental Durability: Resistant to wind, sun, cold, and moisture; some include water-swellable elements for longitudinal water tightness .
• Fiber Options: Available in singlemode and multimode (OM1–OM4) fibers, with fiber counts ranging from 2 to 24 or more .
• Sheath Materials: PE (polyethylene), LSZH (low-smoke zero halogen), or aluminum-polyethylene bonded sheaths depending on installation requirements .
• Applications: Suitable for aerial, duct, direct burial, and interbuilding backbone networks, with some models flame-retardant for indoor/outdoor use .

Summary of Popular ModelsModelStructureArmoringDeploymentGYXTWCentral tube, metal reinforcing memberSteel-polyethylene bondedPipeline, overheadGYXTW53Central tube, metal reinforcing memberCorrugated steel tapeDirect buriedGYTALoose tube, metal strengthening memberAluminum-polyethylenePipeline, overheadGYTY53Loose tube, metal strengthening memberCorrugated steel tapeDirect buriedGYTA53Loose tube, metal strengthening memberCorrugated steel tapeDirect buriedGYXTC8SCentral tube, 8-shaped self-supportingSteel-polyethylene bondedOverhead aerial

These models provide a range of options for mechanical protection, environmental resilience, and installation flexibility, making them suitable for diverse outdoor network deployments .