Optical Transceiver Rail Alignment for High-Speed Connector Engagement
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Solution Overview
Problem
Conventional pluggable optical transceivers face limitations in transmission speed due to electrical mismatching at connectors and plugs, requiring multiple signals to be transmitted at 10 Gbps, leading to increased power consumption and the need for a larger number of electrodes, which complicates reliable engagement and alignment in a compact housing.
Innovation Solution
A pluggable system with a rail and face panel mechanism, where the optical transceiver is directly aligned with the rail, allowing for precise and reliable mating of the electrical plug with the connector, and utilizing a screw to secure the transceiver to the rail, ensuring reliable engagement and alignment, even with a high number of electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of electrodes in the connector and plug is increased to support 100 Gbps transmission, then the transmission capacity is improved, but the pitch between electrodes becomes smaller (0.8 mm), making reliable engagement more difficult
Solution Approach 1:
The connector assembly is segmented into two independent components: the connector body (with electrodes) and the plug (with contact terminals). The rail provides structural support and alignment features that are separate from the electrical connection components. This segmentation allows each component to be optimized independently for its specific function while maintaining overall system reliability.
Solution Approach 2:
The rail acts as an intermediary component that mediates between the connector and plug. It provides mechanical support, positioning, and alignment features that ensure reliable engagement of the high-density electrodes without requiring the electrodes themselves to provide structural support. The rail's alignment grooves and positioning features compensate for the reduced pitch between electrodes.
2Volume of moving object
If the housing size is kept compact (72 mm width), then the device portability is improved, but the number of electrodes (148 pins) cannot be reliably engaged at the required pitch
Solution Approach 1:
The solution moves the alignment and support function from the horizontal plane (where electrode pitch is constrained) to the vertical dimension. The rail provides vertical support and positioning features that ensure reliable engagement without increasing the horizontal housing width. The screw mechanism operates in the vertical dimension to secure the connector, compensating for the constrained horizontal space.
Solution Approach 2:
The system separates the structural support function (provided by the rail and housing) from the electrical connection function (provided by the connector and plug). This allows the housing to remain compact while the rail provides the necessary support and alignment for the high-density connector assembly.
3Speed
If multiple electrical signals are transmitted at 10 Gbps to achieve 100 Gbps capacity, then the transmission speed is improved, but the power consumption increases
Solution Approach 1:
The connector and plug design supports multiple signal types (data signals and power signals) through a unified multi-electrode structure. The same physical infrastructure (connector with 148 pins) handles both high-speed data transmission and power delivery, eliminating the need for separate connection mechanisms and reducing overall system complexity.
Data Source
AI summary
A mechanism to fix the new type of the pluggable optical transceiver to the host system is disclosed. The optical transceiver provides the screws, while, the host system has the face panel with a port and the rail system between which the optical transceiver is set through the port. In the present invention, the screw of the transceiver is fastened to the rail not the face panel, and the rail is precisely aligned with the electrical connector. Thus, the pluggable transceiver in the electrical plug thereof is exactly mated with the electrical connector of the host system.