Fiber Optic Cable Indoor Outdoor Transition Design
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Solution Overview
Problem
Conventional fiber optic cables require two distinct pieces for indoor and outdoor service, leading to increased expense, labor, optical losses, and reliability issues due to separate connectors and materials, which hinder efficient fiber optic access and installation.
Innovation Solution
A fiber optic cable with two sections, one rated for outdoor service and the other for indoor service, featuring a continuous optical fiber with a removable outer covering to facilitate seamless transition and installation, utilizing different materials and designs for each section to meet specific environmental demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two distinct fiber optic cables (indoor and outdoor) are used, then each cable can be optimized for its specific environment, but installation complexity and cost increase due to separate connectors and materials
Solution Approach 1:
The patent combines indoor and outdoor fiber optic cables into a single unified cable structure with a continuous optical fiber running through both sections. The cable includes an indoor section with flexible characteristics and an outdoor section with hardened characteristics, eliminating the need for separate cables and connectors at the boundary between indoor and outdoor environments. This merging reduces installation complexity while maintaining the reliability benefits of environment-specific optimization.
2Reliability
If separate indoor and outdoor cables with connectors are used, then environmental requirements can be met, but optical losses increase due to connection points
Solution Approach 1:
By merging the indoor and outdoor cables into a single continuous fiber structure, the patent eliminates the connection points (connectors) that cause optical losses. The continuous optical fiber extends through both the indoor section and outdoor section without interruption, maintaining signal integrity while still meeting environmental requirements through differentiated cable characteristics in each section.
3Ease of manufacture
If conventional separate cables are used, then installation can proceed with standard materials, but labor and expense increase due to multiple connection points
Solution Approach 1:
The patent merges two separate cable installation processes into a single installation operation. Instead of installing separate indoor and outdoor cables with multiple connectors, technicians install one unified cable with continuous fiber, reducing labor time and installation complexity while maintaining compatibility with standard manufacturing processes and materials.
4Device complexity
If a single cable design is used for both indoor and outdoor, then installation is simplified, but the cable cannot meet the specific demands of each environment
Solution Approach 1:
The patent applies local quality by creating different sections of the same cable with distinct characteristics suited to their respective environments. The indoor section has flexible properties for snaking through walls and ceilings, while the outdoor section has hardened properties for burial and environmental exposure. Both sections share a continuous optical fiber, achieving environmental adaptability without sacrificing structural simplicity.
Data Source
AI summary
A connectorized fiber optic communications cable can comprise a section rated for indoor service and a section rated for outdoor service. A continuous optical fiber can extend through the indoor-rated section and the outdoor-rated section, for example from an outdoor-rated connector on the outdoor-rated section to an indoor-rated connector on the indoor-rated section. The cable can be installed via feeding the section rated for indoor service through a hole in a building, such as a home, to a communication or computing device within the building. The section rated for outdoor service can be buried underground and extended to another communication or computing device located outside the building.