Fiber Communications Panel Trays for Mixed-Width Cassettes
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Solution Overview
Problem
Existing communications panel systems face challenges in efficiently accommodating fiber optic equipment with varying densities and configurations, limiting flexibility and adaptability in port member arrangements.
Innovation Solution
A communications panel system with slidable trays and guides that allow for cassettes of non-integer widths to be mixed, featuring latching arrangements and interchangeable guide configurations to accommodate diverse cassette sizes and types, enhancing flexibility and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fixed-width guides are used in communications panels, then manufacturing and installation are simplified, but flexibility and adaptability in accommodating varying cassette sizes are reduced
Solution Approach 1:
The guide system is made changeable rather than fixed. Guides can be reconfigured between different spacing patterns (e.g., 9mm, 18mm, 27mm, 36mm, 45mm, 54mm, 63mm, 72mm, 81mm, 90mm, 99mm, 108mm, 117mm, 126mm, 135mm, 144mm, 153mm, 162mm, 171mm, 180mm) to accommodate different cassette widths. This dynamic reconfiguration capability allows the same physical guide structure to adapt to varying cassette sizes without requiring custom guides for each size.
Solution Approach 2:
A single guide structure serves multiple functions by supporting various cassette widths through reconfiguration. The guide system can be adjusted to create different bay configurations, allowing one universal guide design to replace multiple specialized guides for different cassette sizes. This multi-functionality resolves the contradiction by providing adaptability without proportionally increasing overall system complexity.
2Ease of operation
If trays are made stationary within the chassis, then structural simplicity is maintained, but accessibility to port members is reduced
Solution Approach 1:
The tray is designed with slidable capability along the depth of the chassis rather than being completely fixed. This partial mobility allows the tray to be pushed forward for cable access and pulled back for port member access, providing dynamic adaptability to different operational needs without requiring complete removal or complex mechanical systems.
Solution Approach 2:
The tray system is segmented into multiple independent trays that can be individually adjusted. Each tray can be independently slid forward or backward, allowing selective access to specific port members without affecting other trays. This segmentation provides ease of operation while maintaining relatively simple overall structure.
3Adaptability or versatility
If guides are designed for integer-width cassettes only, then manufacturing precision requirements are reduced, but adaptability to non-integer width cassettes is lost
Solution Approach 1:
The guide spacing parameters are designed to be adjustable rather than fixed at single integer values. The system supports multiple spacing parameters (9mm, 18mm, 27mm, 36mm, 45mm, 54mm, 63mm, 72mm, 81mm, 90mm, 99mm, 108mm, 117mm, 126mm, 135mm, 144mm, 153mm, 162mm, 171mm, 180mm) that can be selected based on cassette width requirements. This parameter flexibility allows accommodation of non-integer width cassettes without requiring ultra-precise manufacturing tolerances.
Solution Approach 2:
The guide positioning system is made dynamic and reconfigurable rather than statically fixed. Guides can be repositioned to different locations along the tray to create various bay widths, enabling the system to adapt to different cassette dimensions including non-integer widths. This dynamic capability reduces the stringency of manufacturing precision requirements.
Data Source
AI summary
A communications panel includes a chassis receiving one or more tray arrangements that each support one or more cassettes. Each cassette carries a plurality of ports at which connections are made between front and rear plug connectors. Each tray arrangement includes guides along which the cassettes slidably mount. The guides and cassettes are configured to enable cassettes of various size to mount to the same tray without reconfiguring the guides.