Single-Pair Ethernet Converter for Multi-Pair Interoperability
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Solution Overview
Problem
The adoption of single-pair Ethernet standards in industrial networks faces challenges due to mismatches in speed with available Ethernet switches and media access control components, leading to the need for expensive FPGA-based solutions to enable connectivity with multi-pair Ethernet networks.
Innovation Solution
A single-pair to multi-pair Ethernet media converter that operates in multiple modes, allowing direct connection between single-pair and multi-pair Ethernet interfaces using a dual-mode single-pair Ethernet interface, which includes a configuration setting to power up in interoperability mode without software intervention, enabling full throughput data transfer at 10 Mb/s link speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If single-pair Ethernet interface is used to connect to multi-pair Ethernet network, then cost is reduced and power consumption is lowered, but speed mismatch occurs between single-pair Ethernet (10 Mb/s) and available multi-pair Ethernet switches
Solution Approach 1:
The patent changes the operational parameters of the single-pair Ethernet interface by implementing a dual-mode design that can operate at different speeds. The interface can run at 10 Mb/s when connected to single-pair Ethernet and at higher speeds (100 Mb/s, 1 Gb/s) when connected to multi-pair Ethernet networks, resolving the speed mismatch issue while maintaining cost benefits
Solution Approach 2:
The single-pair Ethernet interface is designed to perform multiple functions by supporting both single-pair and multi-pair Ethernet operations. This multi-functionality allows the same hardware interface to adapt to different network types and speed requirements, eliminating the need for separate hardware solutions for different speed requirements
2Speed
If FPGA-based solutions are used to enable connectivity between single-pair and multi-pair Ethernet, then speed compatibility is achieved, but device complexity and cost increase
Solution Approach 1:
The patent introduces an intermediary layer in the form of a media converter that sits between the single-pair Ethernet interface and the multi-pair Ethernet network. This intermediary handles the speed conversion and protocol adaptation, allowing the single-pair interface to communicate with multi-pair networks without requiring complex FPGA-based solutions at the endpoint devices
Solution Approach 2:
The patent extracts the complexity of speed adaptation and protocol conversion from the endpoint devices and places it in a separate media converter component. This extraction allows the main devices to remain simple while still achieving speed compatibility through the external conversion device
3Reliability
If conventional single-pair Ethernet interface configuration is used, then standard operation is maintained, but interoperability with multi-pair Ethernet requires software intervention and complex setup
Solution Approach 1:
The patent implements automatic mode detection and configuration in the single-pair Ethernet interface. The interface automatically detects whether it is connected to a single-pair or multi-pair Ethernet network and configures itself accordingly without requiring software intervention. This self-service capability simplifies deployment while maintaining reliable standard operation
Data Source
AI summary
Disclosed are embodiments that provide digital data communication between a single-pair Ethernet and a multi-pair Ethernet. Some embodiments include a single-pair Ethernet interface that is configured to operate in at least two modes. In a first mode, the single-pair Ethernet interface operates in a conventional manner. In a second mode, alternate pin configurations are employed to provide a low-cost interoperability between a single-pair Ethernet interface and a multi-pair Ethernet interface. For example, in the second mode, the single-pair Ethernet receives, via a first receive data pin, from a first transmit data pin of the multi-pair Ethernet interface, a data signal, and receives, via a second receive data pin, from a second transmit data pin of the multi-pair Ethernet interface, a second data signal.