Fiber Optic Drop Cable Split Jacket Routing
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Solution Overview
Problem
Current fiber optic drop cable assemblies face challenges in routing from outside to inside installations, particularly in MDUs, due to issues with kinking, snagging, and connector disconnection during installation, which increases costs and installation time.
Innovation Solution
A fiber optic drop cable assembly design featuring a cable jacket with split lengths, strength members, and a releasable fiber optic connector, along with a pulling feature, allowing for flexible routing and secure connection, enabling cost-effective installation through narrow spaces and tight corners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional fiber optic drop cable assembly is used for outside-to-inside installation, then the cable can be installed outdoors, but it cannot be properly routed through walls and interior ducts without kinking or snagging
Solution Approach 1:
The cable jacket is divided into three distinct segments: an unsplit length for outdoor installation, a first split length with strength members for navigating walls and corners, and a second split length for interior duct routing. This segmentation allows each portion to be optimized for its specific installation environment, enabling the cable to flex through tight spaces without compromising the optical fibers inside.
2Ease of operation
If the fiber optic cable is made flexible to route through narrow spaces, then installation ease improves, but the connector may disconnect during installation
Solution Approach 1:
Strength members are pre-installed within the split lengths of the cable jacket before installation begins. These strength members are positioned to extend from the unsplit length through the split sections, providing continuous structural support along the entire flexible portion of the cable. This preliminary reinforcement prevents connector disconnection during the installation process while maintaining the cable's flexibility for routing through narrow spaces.
3Productivity
If a preconnectorized cable is used to support plug and play applications, then installation time is reduced, but the cable becomes more complex and difficult to install through tight spaces
Solution Approach 1:
The cable incorporates different structural qualities in different locations: the unsplit length has a simple, robust construction for outdoor use, while the split lengths contain embedded strength members to provide flexibility and prevent snagging. The connector is positioned at the transition point where it can be securely attached. This local differentiation allows the cable to maintain preconnectorized plug-and-play capabilities while navigating complex installation paths through walls and ducts.
Data Source
AI summary
A fiber optic drop cable assembly is disclosed. The fiber optic drop cable assembly includes a fiber optic cable having an unsplit length, with a first split length and a second split length branching from the unsplit length. An optical fiber passage is formed at an interface of the first split length and the second split length. A first strength member extends from the unsplit length and is disposed in the first split length. A second strength member extends from the unsplit length and is disposed in the second split length. At least one optical fiber extends in the optical fiber passage. A fiber optic connector connects to the at least one optical fiber and is releasably secured to one or both of the first strength member and the second strength member. A pulling feature attaches to a portion of the fiber optic drop cable assembly for installation.