Network Switch Power Pin Adaptation for Optical and Electrical Interfaces
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Solution Overview
Problem
Data centers face increasing power demands due to complexity and the need for energy-efficient networking devices, as conventional switches are often designed specifically for either optical or electrical interfaces, limiting the ability to commoditize components and reducing power efficiency.
Innovation Solution
Network switches are designed with both optical and electrical interfaces on the same printed circuit board, using voltage transformer circuits and current boost circuits to manage power and current differently for each interface, sharing an identical power pin position, and employing a common substrate with embedded traces to reduce signal loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional switches are designed specifically for either optical or electrical interfaces, then interface performance is optimized, but component commoditization is limited and power efficiency is reduced
Solution Approach 1:
The network switch is designed with a universal printed circuit board that can accommodate both optical interfaces and electrical interfaces using identical power pin positions. The board includes voltage transformer circuits and current boost circuits that can adaptively transform power delivery based on the connected interface type, enabling a single switch design to serve multiple interface standards without requiring interface-specific hardware variants.
2Adaptability or versatility
If conventional switches are designed specifically for either optical or electrical interfaces, then interface performance is optimized, but component commoditization is limited
Solution Approach 1:
The network switch employs a universal printed circuit board design with standardized power pin positions that can connect to both optical and electrical interfaces. Power transformation circuits are integrated into the board to adaptively deliver appropriate voltage and current levels based on the detected interface type, eliminating the need for separate hardware designs for different interface standards and enabling component commoditization across the networking industry.
3Ease of manufacture
If different power pin positions are used for optical and electrical interfaces, then power delivery is simplified, but manufacturing costs increase and component commoditization is reduced
Solution Approach 1:
The printed circuit board implements location-specific power transformation functionality where identical power pin positions are equipped with adaptive power delivery circuits that detect the connected interface type and automatically adjust voltage and current output. This local adaptation capability allows the same physical pin configuration to serve both optical and electrical interfaces with different power requirements, maintaining manufacturing simplicity while achieving interface versatility.
4Ease of manufacture
If identical power pin positions are shared between optical and electrical interfaces, then component commoditization is enabled and manufacturing costs are reduced, but power management complexity increases
Solution Approach 1:
The power management system employs self-service mechanisms where the printed circuit board automatically detects the connected interface type through the shared power pin positions and autonomously adjusts voltage and current delivery without requiring external control or manual configuration. The integrated voltage transformer and current boost circuits self-regulate based on interface characteristics, reducing power management complexity despite the versatility gained from identical pin configurations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enables switches to efficiently support both optical and electrical interfaces, reducing power consumption, allowing for the commoditization of switch components, and minimizing manufacturing costs while maintaining data integrity.
Implementation Method 1
The optical interface may include a voltage transformer circuit configured to step down voltage received at a power pin. The electrical interface may include a voltage transformer circuit configured to step up voltage received at a power pin.
Implementation Method 2
The optical interface and the electrical interface consume different amounts of electrical power despite sharing an identical power pin position
Data Source
AI summary
Introduced here are several embodiments of network switch modules having interfaces designed to enable use of different voltages or currents. Accordingly, a network switch may be able to support both optical interfaces and electrical interfaces on the same printed circuit board (e.g., a line card or a fabric card). In some embodiments, the printed circuit board includes a “booster stage” electrical interface that is designed specifically for optical interfaces. Such a design enables the components of a switch to operate with both electrical interfaces and optical interfaces.