Breakout Harness Key-Up Key-Down Polarity
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Solution Overview
Problem
Existing fiber optic connectivity systems face challenges in efficiently interconnecting 24-fiber transceivers, particularly in environments with 12-fiber backbone/trunk cables, due to costly and disruptive upgrades and installation complexities related to existing standards like TIA-568-C.0-2, which often require multiple harnesses and key-up to key-up mating schemes.
Innovation Solution
A communication link system using breakout harnesses with specific optical fiber channel connections and trunk cables, allowing for key-up to key-down connections and maintaining appropriate polarity, enabling the interconnection of 24-fiber transceivers like 100GBASE-SR10 transceivers with reduced installation errors and improved signal transmission quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If key-up to key-up mating scheme is used between harnesses and trunk cables, then connection reliability is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent inverts the conventional key-up to key-up mating scheme by implementing a key-up to key-down configuration. The first harness uses a key-up connector while the second harness uses a key-down connector, allowing the keys to face opposite directions during mating. This inversion simplifies the installation process by reducing the need for precise key orientation matching while maintaining connection reliability through proper fiber channel alignment.
2Adaptability or versatility
If multiple different harnesses are used for 24-fiber transceiver interconnection, then adaptability is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent implements universality by designing a standardized breakout harness configuration that can accommodate both key-up and key-down connector types. The first and second breakdown harnesses use the same basic structure with identical fiber channel arrangements, allowing a single harness design to serve multiple interconnection scenarios. This eliminates the need for multiple different harness types while maintaining adaptability to various trunk cable configurations.
3Adaptability or versatility
If 24-fiber transceivers are interconnected via 12-fiber backbone cables, then adaptability to existing infrastructure is improved, but installation precision requirements increase
Solution Approach 1:
The patent segments the 24-fiber transceiver connection into two separate 12-fiber connections using two different harnesses. Each harness handles 12 fibers and connects to a 12-fiber backbone cable, dividing the complex 24-fiber interconnection into two manageable segments. This segmentation reduces the precision requirements for individual fiber channel alignment compared to maintaining a single 24-fiber connection, while still achieving the required overall alignment through the standardized connector interfaces.
Data Source
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AI summary
Embodiments of the present invention relate to the field of fiber optic connectivity, and more specifically, to systems and methods for connecting fiber optic transceivers. In an embodiment, the present invention provides a system which enables the interconnection of fiber optic transceivers such as, for example, 24-fiber transceivers like the 100GBASE-SR10 transceivers while maintaining appropriate fiber polarity.