Single-Pair Ethernet Conduction Paths for Longer Stub Lines
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Solution Overview
Problem
Existing single-pair Ethernet systems are inflexible due to length restrictions on stub lines and inability to transmit both power and data, limiting network design and expansion capabilities.
Innovation Solution
A single-pair Ethernet device with conduction paths that connect input and output contacts, allowing for flexible configuration and omission of terminating resistors, enabling simultaneous data and power transmission and easy customization of the network by connecting or removing devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a terminating resistor is used in the single-pair Ethernet system, then the network structure is simplified, but power and data transmission become impossible
Solution Approach 1:
The patent removes the terminating resistor from the network configuration, extracting the component that prevents dual-mode operation. This allows the system to support both power and data transmission simultaneously without the constraint of requiring a terminating resistor at each endpoint.
Solution Approach 2:
The single-pair Ethernet system is designed to perform multiple functions through a single conductor pair: both power transmission and data communication. The system achieves universality by enabling the same physical infrastructure to support different operational modes without requiring additional components or separate wiring.
2Reliability
If stub lines are kept short (30 cm maximum), then signal integrity is maintained, but design flexibility and installation freedom are severely restricted
Solution Approach 1:
The patent changes the electrical parameters of the transmission line by removing the terminating resistor, which alters the impedance characteristics and signal reflection behavior. This parameter change enables longer stub lines to be used while maintaining acceptable signal integrity, thereby increasing design flexibility and installation freedom.
3Ease of manufacture
If the network uses fixed configuration with T-pieces and stub lines, then the initial network structure is established, but extension and customization become impossible
Solution Approach 1:
The patent transforms the network from a static, fixed configuration to a dynamic, reconfigurable system. Devices can be added, removed, or repositioned along the single-pair Ethernet line without requiring physical reconfiguration of the wiring infrastructure, enabling the network to adapt to changing requirements while maintaining ease of initial setup.
Data Source
AI summary
A single-pair Ethernet device comprises a first input contact and a second input contact, which are configured for electrically contacting a single-pair Ethernet input conductor pair, further comprises a first output contact and a second output contact, which are configured for electrically contacting a single-pair Ethernet output conductor pair, comprises a first conduction path, which in at least one operation state electrically conductively connects the first input contact to the first output contact, and comprises a second conduction path, which in the operation state electrically conductively connects the second input contact to the second output contact.