Converter Module QSFP SFP+ Interposer Signal Routing
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Solution Overview
Problem
The integration of Quad-Small Form-Factor Pluggable (QSFP) ports with Enhanced Small Form-Factor Pluggable (SFP+) ports is hindered by the need for a converter module to facilitate data connectivity between servers with different communication standards, as QSFP transceivers typically support higher data rates than SFP+ transceivers.
Innovation Solution
A converter module with demultiplexing and multiplexing units that split and combine data signals to enable data transfer between QSFP and SFP+ ports, allowing for seamless communication between devices with different data rates, such as 40 G or 100 G and 10 G, by using a housing with specific connector configurations and an interposer board to route signals effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a converter module is introduced to enable connectivity between QSFP and SFP+ ports, then compatibility between different data rate standards is improved, but device complexity increases
Solution Approach 1:
The patent employs an interposer board as an intermediary component that physically and electrically bridges QSFP and SFP+ connectors. This interposer serves as a mediator that translates between different connector types and signaling standards, enabling compatibility without requiring direct integration between QSFP and SFP+ ports. The interposer handles the complex signal routing and electrical level translation internally, presenting simple connector interfaces to both sides.
Solution Approach 2:
The converter module is segmented into distinct functional components: QSFP connector interface, interposer board with routing layers, SFP+ connector interfaces, and demultiplexing/multiplexing units. This segmentation allows each component to be optimized independently and facilitates modular assembly, reducing overall system complexity while maintaining compatibility functionality.
2Productivity
If demultiplexing and multiplexing units are used to split and combine data signals, then data transfer capability between different data rates is improved, but device complexity increases
Solution Approach 1:
The signal processing functionality is segmented into dedicated demultiplexing units and multiplexing units that are physically separated and distributed within the converter module. Each unit handles specific signal routing tasks independently, allowing for optimized design of each signaling function while maintaining overall data transfer capability.
Solution Approach 2:
The patent replaces complex mechanical signal switching mechanisms with electronic demultiplexing and multiplexing circuits implemented on the interposer board. This substitution enables more flexible and reliable signal routing between QSFP and SFP+ interfaces while reducing mechanical wear and improving signal integrity at high data rates.
Data Source
AI summary
A converter module is provided that is configured to provide data connectivity between at least two external devices, where the converter module comprises a pair of first connectors and up to eight second connectors. The pair of first connectors is configured to be plugged into and interfaced with ports on a first external device. The second connectors are configured to receive and interface with cables. The converter module also comprises a demultiplexing and multiplexing unit that is configured to split signals received via the pair of first connectors or combine signals received by plurality of second connectors. The pair of first connectors receive and couple signals at a first data rate, while the second connectors receive and couple signals at a second data rate. The first data rate may be four times the second data rate.