Fiber Optic Connector Polarity Keying Mechanism
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Solution Overview
Problem
Fiber optic jumper cables require complex and risky field adjustments to change polarity, which can damage components and increase installation time and costs due to the need to disassemble and reassemble connectors.
Innovation Solution
A fiber optic connector design featuring a key with a cantilevered portion and latches that allows for easy polarity reversal without removing other components, using a tool to move the key between first and second positions within recessed portions of the connector housing, preventing incorrect orientation and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the connector housing is changed to alter polarity, then the polarity can be changed, but the optical fibers may be damaged and the process becomes time-consuming
Solution Approach 1:
The connector is divided into separable components: a removable key element and a housing. The key can be extracted and reinserted in different orientations to change polarity, while the housing and optical fibers remain undisturbed. This segmentation allows polarity adjustment without risking damage to the integrated structure.
Solution Approach 2:
The key component is extracted from the housing as a separate removable element. By taking out the key and reinserting it in a different orientation, the polarity is changed without needing to remove or reassemble the entire connector housing or touch the optical fibers, thereby maintaining reliability.
2Adaptability or versatility
If the connector is disassembled to change polarity, then the polarity can be adjusted, but the installation time increases
Solution Approach 1:
The connector design segments the polarity-determining element (key) from the main housing. This allows the key to be quickly removed and reinserted in different orientations without time-consuming disassembly of the entire connector, reducing installation time while maintaining polarity adjustability.
Solution Approach 2:
The key is pre-configured with different orientation positions that correspond to different polarities. The user simply needs to rotate and reinsert the key into a predetermined position, rather than performing complex disassembly and reassembly procedures, thereby minimizing time loss.
3Adaptability or versatility
If the connector housing is modified to enable polarity change, then polarity flexibility is improved, but the device complexity increases
Solution Approach 1:
The connector is segmented into a simple housing and a separate key element. This segmentation maintains structural simplicity while enabling polarity flexibility, as the key can be independently manipulated without complicating the main housing structure.
Solution Approach 2:
The polarity-changing functionality is extracted into a separate removable key component rather than being integrated into the housing structure. This extraction simplifies the overall device complexity while maintaining the ability to change polarity by simply swapping key orientations.
Data Source
AI summary
A fiber optic connector along with a tool allows for the changing of the polarity of the fiber optic connector. Keys may be installed in both the top and the bottom of the fiber optic connector, one in a first position and the other in a second position. Using the tool in one back-and-forth motion, the polarity of the fiber optic connector can be changed. The keys have a configuration that resist an incorrect insertion and provide better retention of the keys in the correct configuration due to a better retention force.