Square Cassette Lock Tab Key Aperture Chassis

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Solution Overview

Problem

Existing high-density data center patching systems are cumbersome for installation and cable routing, often resulting in increased signal loss due to numerous termination points and bulky cassette designs.

Innovation Solution

A fiber optic patching system with a cassette and chassis design that allows for easy installation and reduced signal loss by using a smaller, square-shaped cassette profile with a lock tab and key aperture mechanism, reducing the number of termination points and utilizing a channel for secure cable management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If traditional vertical cassette format is used to maximize chassis density, then chassis density is improved, but installation and cable routing becomes difficult and cumbersome

Engineering Contradiction:
Improvechassis densityVSAvoidinstallation and cable routing
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The cassette design transitions from a vertical orientation to a horizontal orientation, changing the dimensional arrangement of components. This allows the cassette to be pulled through conduits horizontally rather than vertically, significantly improving installation ease while maintaining chassis density through optimized component layout in the horizontal plane.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If pre-terminated cassettes are used, then installation speed is improved, but cassette size becomes large and bulky

Engineering Contradiction:
Improveinstallation speedVSAvoidcassette size
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The cassette is segmented into functional zones: a compact termination section for pre-terminated connectors and a streamlined body section for cable routing. This segmentation allows the termination functionality to be concentrated in a small area while the overall cassette maintains a compact, non-bulky form factor suitable for easy installation.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If multiple termination points are used throughout the cabling design, then cable flexibility is improved, but signal loss increases

Engineering Contradiction:
Improvecable flexibilityVSAvoidsignal loss
Core Design Contradiction:
Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The invention extracts and consolidates termination points into a single integrated cassette unit rather than distributing multiple termination points throughout the cabling path. This reduction in the number of termination points minimizes signal loss while the cassette's internal design provides adequate cable flexibility through proper cable management features.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS10551585B2Fiber optic patching system
Publication Date: 2020.02.04 TACTICAL DEPLOYMENT SYSTEMS LLC
  • US10551585B2 patent drawing
  • US10551585B2 patent drawing
  • US10551585B2 patent drawing

AI summary

A cassette may include a channel with a lock tab disposed within the channel. Each cassette may be adapted to receive and secure any type of data cable and cable connector. A chassis may include an alignment slot and a key which may extend away from the alignment slot, and the key may have a key aperture. The cassette may be coupled within the alignment slot by inserting the key into the channel so that the lock tab and key aperture are engaged together. Preferably, the portion of the key having the key aperture may be movable away from the portion of the cassette having the lock tab to disengage the lock tab and key aperture so that the cassette is able to be uncoupled from the alignment slot.