Compact Hybrid Cable Distribution for Cellular Tower Space Limits
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Solution Overview
Problem
Conventional cellular tower sites face challenges with limited space for fiber optic breakout assemblies and other components, leading to increased costs for operators due to expensive rental fees for tower space.
Innovation Solution
A compact hybrid distribution unit that combines power and data connections within a single enclosure, reducing the overall footprint and enabling efficient routing of cabling while providing integrated overvoltage protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate power and fiber optic cabling are used to supply power and data from the shelter to the processing unit on the tower, then reliable power and data transmission is achieved, but the device complexity and space requirements increase
Solution Approach 1:
The patent combines separate power cables and fiber optic cables into a single hybrid cable that transmits both power and data signals simultaneously. This merging reduces the number of cables and connectors needed, simplifying installation and reducing space requirements while maintaining reliable power and data transmission to the processing unit on the tower.
Solution Approach 2:
The hybrid cable serves multiple functions simultaneously - it provides both power transmission and data communication through a single cable assembly. This multi-functionality eliminates the need for separate cabling systems, reducing overall system complexity while ensuring both power and data reliability are maintained through dedicated conductors within the hybrid cable.
2Loss of energy
If conventional processing units are installed at the top of the tower near the antenna, then energy loss is minimized, but susceptibility to damage from overvoltage and surge current increases
Solution Approach 1:
The patent introduces an intermediary protection mechanism in the form of surge protectors integrated into the hybrid cable system. These protectors act as intermediaries between the hybrid cable and the processing unit, blocking overvoltage and surge currents from reaching the sensitive processing electronics while allowing normal power and data signals to pass through, thus protecting the unit located near the antenna.
Solution Approach 2:
The surge protection devices are pre-installed in the hybrid cable system to provide preliminary protection against overvoltage and surge currents before they can reach the processing unit. This preventive measure is built into the cable assembly itself, ensuring that when lightning strikes or voltage spikes occur, the processing unit near the antenna is already protected rather than vulnerable.
3Adaptability or versatility
If multiple DC link cables are routed to accommodate different radio/antenna combinations, then adaptability is improved, but the complexity of routing and protecting connections increases
Solution Approach 1:
The hybrid cable system provides universal adaptability by incorporating multiple DC link cables and fiber optic cables within a single cable assembly. This allows the system to accommodate different radio and antenna combinations without requiring separate external cabling for each configuration. The integrated design simplifies routing while maintaining the flexibility to support various radio types and antenna configurations through the same hybrid cable infrastructure.
Data Source
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AI summary
Some embodiments of the present disclosure are directed to a hybrid distribution unit that can distribute both power and data connections from a power and fiber cables (or from a hybrid cable containing both power and fiber) within a compact enclosure that helps reduce the overall footprint of the hybrid distribution unit mounted on a cellular tower. Other embodiments may be described or claimed.