Sealed Breakout Kit for Hybrid Fiber Electrical Cable
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Solution Overview
Problem
Existing hybrid cable assemblies for FTTA cabling require complex and time-consuming on-site termination processes, with potential for signal degradation and environmental fouling due to the need for individual over-voltage protection and distribution boxes for electrical and optical conductors.
Innovation Solution
A transition housing system that allows for the direct breakout of hybrid cable conductors into individual jumpers without splicing, using protective sheaths and furcation tubes interlocked with the hybrid cable, which are sealed and protected within a compact assembly to eliminate the need for on-site termination and distribution boxes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If over-voltage protection and distribution boxes are used for terminating conductors on-site, then individual conductor termination is achieved, but installation time and labor requirements increase
Solution Approach 1:
The patent applies preliminary action by pre-terminating all conductors at the cable end before deployment. The hybrid cable is factory-configured with all electrical and optical conductors already terminated and protected, eliminating the need for on-site termination work. This preliminary preparation directly reduces installation time while maintaining the ability to terminate individual conductors when needed.
Solution Approach 2:
The patent introduces an intermediary protective boot that serves as a mediator between the cable end and the environment. This boot contains all terminated conductors and provides environmental protection without requiring additional distribution boxes or termination enclosures, simplifying the installation process while protecting the terminated conductors.
2Ease of operation
If over-voltage protection and distribution boxes are used for terminating conductors, then individual conductor termination is achieved, but the number of connection points increases leading to signal degradation and environmental fouling
Solution Approach 1:
The patent merges all conductor terminations into a single integrated protective boot at the cable end. Instead of distributing terminations across multiple boxes or connection points, all electrical and optical conductors are terminated and protected within one consolidated structure. This reduces the number of connection points from multiple distribution boxes to a single unified termination point, minimizing signal degradation opportunities and environmental exposure.
Solution Approach 2:
The patent uses a flexible protective boot made of elastomeric material that seals around all terminated conductors. This flexible shell provides environmental protection while accommodating the various conductors within a single protective envelope, preventing environmental fouling without requiring multiple rigid distribution boxes with separate seals.
3Ease of operation
If a large in-line break-out/splice enclosure is used, then conductor breakout is achieved, but the assembly size and complexity increase
Solution Approach 1:
The patent extracts the breakout function from a large in-line enclosure and relocates it to the cable end. By moving the conductor breakout operation to the terminal end and containing it within a compact protective boot, the need for a large intermediate splice enclosure is eliminated. This extraction simplifies the overall assembly structure while maintaining full conductor breakout capability.
Solution Approach 2:
The patent inverts the traditional approach by performing conductor breakout at the cable end rather than at an intermediate location along the cable run. This inversion allows the use of a compact protective boot instead of a large in-line enclosure, reducing assembly complexity while achieving the same conductor access functionality.
4Reliability
If traditional termination boxes are used, then conductor protection is achieved, but pull-apart strength and environmental sealing are insufficient
Solution Approach 1:
The patent employs composite material construction for the protective boot, combining elastomeric materials with reinforcing elements. This composite structure provides both environmental sealing properties from the elastomer and enhanced pull-apart strength from the reinforcement, overcoming the limitations of traditional single-material termination boxes.
Solution Approach 2:
The patent uses a flexible elastomeric boot that provides superior environmental sealing compared to rigid traditional boxes. The flexible material conforms to the cable and terminated conductors, creating effective seals that prevent environmental fouling while maintaining high pull-apart strength through its elastic properties and reinforcement.
Data Source
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AI summary
A cable breakout kit has a cable portion, an inner wall portion and a furcation portion with at least one fiber port. The cable portion and the furcation portion are dimensioned to couple with one another, enclosing a furcation area. The inner wall portion is coupled to the furcation portion and a fiber bundle of the cable, enclosing a fiber area within the furcation area; the fiber area is coupled to the at least one fiber port. An assembly including a cable with a fiber and an electrical conductor utilizes a transition housing to pass the fiber and conductor to respective furcation tubes, isolated from one another.