High-Density Fiber Enclosure for Non-Disruptive Cassette Maintenance
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Solution Overview
Problem
Existing data center management systems face challenges in maximizing the number of optical fiber connections per rack space while allowing for easy, non-disruptive maintenance or replacement of optical fiber cables.
Innovation Solution
The proposed solution is a high-density fiber enclosure system that includes a chassis with sliding cassette trays, a unification clip for joining cassette trays, and a trunk cable management system. This design maximizes the number of connections per rack space and facilitates non-disruptive maintenance by minimizing the disturbance to optical fiber connections during adapter replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If smaller adapters (LC or MPO) are used to maximize connections per rack space, then the number of connections per rack space increases, but maintenance or replacement of adapters becomes more complex and time-consuming
Solution Approach 1:
The system is divided into modular adapter assemblies, each containing multiple adapters mounted on a removable carrier. This segmentation allows the entire group of adapters to be replaced as a single unit, maintaining high connection density while simplifying maintenance operations. The carrier acts as a sub-assembly that can be independently removed and replaced without affecting other components in the rack.
2Reliability
If adapters are replaced individually to maintain service continuity, then service disruption is minimized, but the time and complexity of maintenance increases
Solution Approach 1:
The system enables preliminary preparation of replacement adapter assemblies outside the rack. A complete replacement carrier with pre-installed adapters can be prepared in advance, then quickly swapped into the rack in a single operation. This eliminates the time-consuming process of individually replacing adapters while maintaining service continuity, as the pre-prepared assembly can be installed without disrupting active connections.
3Ease of manufacture
If traditional rack designs are used, then installation is simpler, but the number of connections per rack space is reduced
Solution Approach 1:
The adapter assemblies are designed with nested structures where multiple adapters are mounted on a carrier that itself can be nested within the rack structure. The carrier contains recesses that receive the adapters, creating a nested arrangement that maximizes space utilization. This nested design allows more connections to be packed into the same rack space while maintaining ease of installation through simple front-access mounting.
Data Source
AI summary
A high density fiber enclosure system includes a chassis, cassette trays, an optional unification clip, cassettes, and an optional trunk cable management system. The chassis, cassette trays, and cassettes are configured such that individual cassettes may be installed, removed, and otherwise positioned for easy access by a user. The unification clip allows two adjacent cassette trays to be connected to one other such that cassette trays move as one unit. The trunk cable management system is designed to organize trunk cables and trunk cable furcation legs as well as relieve strain on the trunk cables and trunk cable furcation legs.