Fiber Reel Assembly With One-Way Rotation for Drop Cable Deployment
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Solution Overview
Problem
Technicians face challenges in determining the length of input fiber cable needed for fiber distribution hubs (FDH) to fiber connection points, leading to issues with cable slack management and potential bend loss due to improper storage, and conventional FDHs require drop cables to be connected after deployment, risking damage.
Innovation Solution
A fiber optic enclosure assembly with a cable reel that selectively rotates in clockwise or counterclockwise directions, allowing drop cables to be pre-connected and preventing recoil, using a latching member to control reel rotation and maintain adapter stability during deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the approximated length of input fiber cable is too short, then the technician must splice additional cable, but this increases installation time and complexity
Solution Approach 1:
The patent applies preliminary action by providing a reel with pre-mounted adapters that can hold multiple lengths of input fiber cable before deployment. This allows the technician to prepare the cable length in advance on the reel, then deploy it as a single unit to the fiber connection point, eliminating the need for mid-installation splicing and reducing overall installation time.
2Ease of operation
If the approximated length of input fiber cable is too long, then excess slack must be stored, but this can introduce unwanted bends and bend loss
Solution Approach 1:
The patent applies preliminary action by providing a dedicated slack storage compartment in the reel assembly where excess input fiber cable can be neatly wound and secured before deployment. This pre-organized storage prevents random coiling and unwanted bends, ensuring that when the cable is deployed, the excess length is managed in a controlled manner that minimizes bend loss and maintains signal quality.
3Ease of operation
If the adapter plate rotates with the spool during cable deployment, then the spool can rotate freely, but the drop cables connected to the adapter plate are damaged
Solution Approach 1:
The patent applies segmentation by separating the adapter plate from the rotating spool. The adapter plate is mounted on a stationary panel while the spool rotates independently on the same panel. This segmentation allows the spool to rotate freely during cable deployment while the adapter plate remains stationary, protecting the drop cables connected to it from damage while maintaining ease of deployment.
Solution Approach 2:
The patent uses the stationary panel as an intermediary between the rotating spool and the stationary adapter plate. The panel provides a stable mounting surface that allows the spool to rotate relative to it while keeping the adapter plate fixed. This intermediary structure enables the spool's rotational movement without transferring it to the adapter plate, thus protecting connected drop cables while maintaining deployment functionality.
4Productivity
If the technician secures the FDH to its permanent location before connecting input fiber cable, then the installation process is streamlined, but the required cable length is unknown
Solution Approach 1:
The patent applies preliminary action by enabling the technician to mount and configure the FDH at its permanent location before determining the exact input fiber cable length needed. The reel assembly with pre-mounted adapters and slack storage allows the cable to be deployed and connected after the FDH is securely installed, streamlining the overall installation process while maintaining the ability to measure and prepare the correct cable length without rushing or repositioning the FDH.
Data Source
AI summary
A fiber optic enclosure assembly for housing optical fiber connections includes: a housing portion; a bearing mount portion disposed within the housing portion; and a cable reel portion disposed within the housing portion. The cable reel portion is configured to be engaged with the bearing mount portion such that the cable reel portion selectively rotates; the cable reel portion is configured to be selectively rotatable in only a counterclockwise direction or only in a clockwise direction depending on the position of a latch portion; and the position of the latch portion is configured to permit the cable reel portion to rotate in only a selected one of the counterclockwise direction and the clockwise direction such that a cable can be paid out from the cable reel portion or wrapped onto the cable reel portion and the cable is prevented from unwinding in a direction opposite to the selected direction.