Dual-Latch VSFF Connectors for Cross-Compatible Fiber Mating
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Solution Overview
Problem
Existing VSFF optical connection systems, such as SN-type and MDC/MMC-type connectors, lack cross-compatibility, hindering their widespread adoption in next-generation data centers.
Innovation Solution
Development of cross-compatible VSFF connectors and adapters that allow for interoperation between SN-type and MDC/MMC-type connectors, featuring modified ferrule arrangements, latch mechanisms, and remote release assemblies to facilitate universal connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If SN-type and MDC/MMC-type connectors are designed with different latch mechanisms, then each connector type achieves reliable connection, but cross-compatibility between connector types is lost
Solution Approach 1:
The connector housing is designed with dual latch mechanisms: a first latch mechanism (latch arm and latch recess) for SN-type compatibility and a second latch mechanism (connector latch and connector latch recess) for MDC/MMC-type compatibility. This allows a single connector design to reliably mate with both SN-type and MDC/MMC-type adapters, achieving universal adaptability without sacrificing connection reliability for either connector type.
2Adaptability or versatility
If a single connector design is used for both SN-type and MDC/MMC-type, then cross-compatibility is achieved, but device complexity increases
Solution Approach 1:
The latch system is segmented into two independent mechanisms: the first latch mechanism with latch arm and latch recess, and the second latch mechanism with connector latch and connector latch recess. Each mechanism operates independently and can be engaged or disengaged based on the adapter type, allowing the connector to handle both SN-type and MDC/MMC-type connections without requiring a completely redesigned structure.
3Reliability
If different ferrule arrangements are used for SN-type and MDC/MMC-type connectors, then each connector type maintains its performance characteristics, but interchangeability between types is prevented
Solution Approach 1:
The ferrule arrangement is made dynamic and adaptable through the dual latch mechanism design. The connector housing can accommodate different ferrule configurations (SN-type with separate ferrules or MDC/MMC-type with integrated ferrule) while maintaining proper fiber alignment precision. The latch mechanisms dynamically adjust to secure the appropriate ferrule arrangement based on the adapter type, enabling interchangeability without compromising alignment performance.
Data Source
AI summary
Cross-compatible VSFF connection systems include optical connectors that are compatible with at least two types of adapters and adapters that are compatible with at least two types of optical connectors. Optical connectors have one or both of connector latch recesses and depressible latches, and likewise adapters have one or both of adapter latch arms and adapter latch recesses. Dual latch function connectors and adapters are capable of connection to a mating components that have only one type of latch structure, e.g., only recesses or only latches. Connection systems can be duplex or MT and may facilitate push-pull boot remote release and polarity change.