Remappable I/O Terminal for PoE Electrical Transmitters
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Solution Overview
Problem
The adoption of Power over Ethernet (PoE) in electrical transmitters is limited due to inconsistent standards, implementation difficulties, and high costs, and existing devices face challenges in sealing conduits for both Ethernet and analog cables, especially in compact housings.
Innovation Solution
An electrical transmitter with a remappable power connection terminal that can detect and accept power from either an Ethernet connection or a dedicated power source, allowing flexible installation options and automatic or manual configuration to use the Ethernet connection for power or I/O signals, optimizing conduit usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Power over Ethernet (PoE) is implemented in electrical transmitters, then power and data communications are combined in a single network connection, but the adoption is limited due to inconsistent standards, implementation difficulties, and high costs
Solution Approach 1:
The connection terminal is made dynamically configurable through remapping capabilities. The system can switch between different modes (PoE power delivery mode, traditional power mode, and I/O mode) based on detection of power sources and communication requirements. This dynamic reconfiguration allows a single terminal to adapt to different installation scenarios without requiring multiple dedicated terminals for each function.
Solution Approach 2:
The connection terminal is designed to perform multiple functions: it can serve as a PoE power delivery interface, a traditional power input terminal, and an analog I/O channel. By integrating these multiple functions into a single terminal, the system reduces the number of separate components needed and simplifies the overall device architecture while maintaining versatility.
2Power
If all eight conductors in Ethernet cable are reserved for power and ethernet communication, then PoE functionality is achieved, but flexibility for additional I/O channels is reduced
Solution Approach 1:
The system dynamically determines which conductors to use for power delivery versus I/O based on detection. When PoE power is detected at the connection terminal, the terminal is remapped to accept I/O signals instead of using all conductors for power. This dynamic allocation allows the same physical terminal to serve different purposes depending on the operational context.
Solution Approach 2:
Different portions of the Ethernet cable conductors are allocated to different functions based on local requirements. The system can use only the necessary conductors for power delivery when available, leaving other conductors free for I/O channels. This localized allocation of conductor functions optimizes the use of available resources.
3Ease of manufacture
If traditional separate conduits are used for power and I/O connections, then installation is straightforward, but installation complexity increases when Ethernet cables with 8P8C headers are added to compact housings
Solution Approach 1:
The patent combines the power connection terminal and I/O connection terminal into a single integrated connection terminal. This merging eliminates the need for separate conduits for power and I/O, simplifying the sealing process in compact housings. The single terminal handles both power delivery (when in PoE mode) and I/O signal acceptance (when remapped), reducing the number of separate cable entry points that require sealing.
Data Source
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Figure 2A
Figure 2B
AI summary
An electrical transmitter (100) is provided that comprises an ethernet connection (118) and a power source. Electronics (112) are configured to receive the ethernet connection (118) and the power source. The electronics (112) comprise logic operable to detect the power source and accept power from either the ethernet connection (118) or a dedicated power connection (116). A remappable power connection terminal (114) with the electronics (112) is operable to accept power when the dedicated power connection (116) is detected, and operable to accept a non-power connection when power from the ethernet connection (118) is detected.