Low Profile Fiber Optic Cassette Crosstalk Reduction
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Solution Overview
Problem
Current multi-port cassettes for communication ports or outlets lack optimal shielding, connector density, cable management, and bend radius control, especially when housing different types of conductive media like copper wires and optical fibers in a single patch panel, leading to inefficiencies and increased crosstalk.
Innovation Solution
A low-profile cassette design with enhanced shielding and latch mechanisms that allows for high-density connectivity, efficient cable management, and bend radius control, capable of housing various types of connectors and media, including copper wire and optical fiber connectors, while reducing crosstalk through strategic placement of shielding projections and flexible materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If connector density is increased to support high connectivity demands, then connectivity capacity is improved, but cable management and bend radius control become more difficult
Solution Approach 1:
The cassette is divided into multiple modular outlet assemblies, each housing individual connectors. This segmentation allows for systematic cable routing and management while maintaining high connector density within the compact structure.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement of connectors and cable pathways within the cassette. By organizing connectors in multiple layers and providing dedicated cable access points, the design maintains bend radius control even with increased connector density.
2Quantity of substance
If multiple electrical connectors are placed in close proximity within a cassette, then connector density is improved, but crosstalk between connectors increases
Solution Approach 1:
The patent applies differential shielding to specific outlet assemblies based on their position within the cassette. Adjacent electrical connectors are provided with localized shielding structures, while optical fiber connectors receive appropriate isolation. This targeted approach reduces crosstalk without compromising overall connector density.
3Adaptability or versatility
If a single patch panel houses both copper wire and optical fiber connectors, then versatility is improved, but shielding effectiveness is reduced
Solution Approach 1:
The patent implements media-specific shielding and isolation measures within the shared patch panel. Copper connectors receive electromagnetic shielding, while optical fiber connectors are positioned in isolated zones. This localized differentiation maintains shielding effectiveness for each media type while enabling versatile coexistence in a single patch panel.
Data Source
AI summary
A multi-port or multi-outlet cassette that may be configured as a low profile, high-density cassette. Selected embodiments include a bezel member having a projection positioned between each adjacent pair of outlets to help reduce crosstalk. A releasable latch mechanism may be included that is configured to selectively latch and unlatch the cassette to a patch panel. Embodiments configured for use with fiber optic cables may include a movable connector member. A cable connector may be mounted to the movable connector member to move therewith as a unit. Moving the movable connector member determines an angle of the cable connector relative to the panel. Angles may be selected to reduce stress on a cable connected to the cable connector. In particular, it may be desirable to position the cable connector such that it is orthogonal to the panel.