Rotatable Adapter Riser Box for Optical Fiber Cable Routing
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Solution Overview
Problem
Existing riser boxes for optical access networks are bulky and cannot be easily installed in narrow spaces, as they require increased size to accommodate entrance/exit openings for the riser cable on opposite sides, which is undesirable in the field of optical access networks where a reduced size is crucial.
Innovation Solution
A riser box design with a base that allows the riser cable to pass through either side, featuring a dual-channel configuration and an adapter that can be connected to the base in two configurations, enabling the riser cable to pass through either the left or right side, along with a compact size and adjustable openings for drop cables and optical fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the riser box is designed with openings for riser cable passage on opposite sides, then the cable routing flexibility is improved, but the device size increases making it unsuitable for narrow spaces
Solution Approach 1:
The adapter is designed to be rotatable relative to the base, allowing dynamic reconfiguration of the cable passage orientation. The adapter can rotate between horizontal and vertical positions, enabling the same compact device to adapt to different installation scenarios without requiring multiple fixed configurations or increasing overall device volume.
Solution Approach 2:
The single adapter structure serves multiple functions: it provides cable passage, supports splice trays, and can be oriented in different directions through rotation. This multi-functionality eliminates the need for separate components for each function, maintaining compact size while achieving cable routing flexibility equivalent to larger traditional designs.
2Ease of operation
If the riser box size is reduced for compact installation, then the ease of installation in narrow spaces is improved, but the space for cable management and splice trays is reduced
Solution Approach 1:
The rotatable adapter allows the working space to be dynamically repositioned. When installation is needed, the adapter can be rotated to provide optimal access to splice trays and cable management areas. This dynamic adjustment maintains adequate working space within the compact overall device footprint, facilitating easy installation in narrow spaces without sacrificing cable management capability.
Solution Approach 2:
The adapter rotation mechanism transforms a two-dimensional space constraint into a three-dimensional solution. By utilizing the rotational degree of freedom, the device creates accessible working space in different spatial orientations, effectively providing adequate cable management volume within a compact external footprint suitable for narrow installation spaces.
3Device complexity
If the adapter is fixed in one configuration, then the device complexity is reduced, but the adaptability to different installation orientations is reduced
Solution Approach 1:
The adapter incorporates a simple rotational mechanism that allows reconfiguration between different orientations without requiring complex movable parts. This single degree of freedom rotation provides installation orientation flexibility while maintaining relatively simple device structure, avoiding the need for multiple fixed configurations or complex multi-axis adjustment mechanisms.
Solution Approach 2:
The rotation function is integrated directly into the adapter assembly, merging the orientation adjustment capability with the cable passage and splice tray support functions. This integration avoids adding separate adjustment mechanisms, maintaining device simplicity while achieving adaptability to different installation orientations through the unified rotatable structure.
Data Source
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AI summary
It is disclosed a riser box suitable for housing an optical connection between a riser cable and a drop cable of an optical access network. The riser box comprises: a base having a first channel and a second channel configured to allow the riser cable passing through the base along opposite sides thereof, at least one splice tray, and an adapter configured to support the splice tray(s). The adapter is alternatively connectable to the base according to a first configuration, in which it engages the first channel and leaves the second channel free, and a second configuration, in which it engages the second channel and leaves the first channel free.