Transceiver Module Unlatch Detection Switch
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Solution Overview
Problem
Conventional systems lack effective methods for detecting when a cable assembly module is about to be unplugged, leading to insufficient time for shutting down communications links before removal, especially in high-speed data transmission applications.
Innovation Solution
A pluggable electronic transceiver module assembly with a detection switch that monitors the position of a release mechanism, providing latched and unlatched state signals to indicate when the module is locked or unlocked, allowing for early detection of unplugging and enabling timely shut-down of communications links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional module detection methods are used, then the system can detect module presence/absence, but the detection occurs too late (at or after electrical disconnection) to allow timely shut-down of communications links
Solution Approach 1:
The detection switch is positioned to detect the unlatched state of the release mechanism before the module is fully removed from the receptacle. This preliminary detection occurs while the module is still electrically connected, providing advance notice (50-500 milliseconds) that allows the system to shut down communications links before physical removal, preventing data loss and ensuring safe module removal.
2Loss of time
If the detection switch monitors the release mechanism position, then early detection of unplugging is achieved, but the device complexity increases
Solution Approach 1:
The detection switch utilizes the existing release mechanism's positional states (latched/unlatched) to generate detection signals. The release mechanism itself serves the dual purpose of both securing the module and providing the detection signal through its position-dependent interaction with the detection switch, eliminating the need for separate detection hardware.
Data Source
AI summary
An electrical module assembly is provided that is configured for latching engagement with a receptacle assembly. The module assembly comprises a module housing having an exterior envelope and an interior cavity. The exterior envelope of the module housing is configured to be plugged into the receptacle assembly. A release mechanism is joined to the module housing. The release mechanism is moveable between locked and unlocked positions. The release mechanism is configured to unlock the module housing from the receptacle assembly when the release mechanism is moved from the locked position to the unlocked position. A detection switch is located within the interior cavity of the module housing. The detection switch monitors a position of the release mechanism and provides latched and unlatched state signals based on the position of the release mechanism. The latched state signal indicates that the module housing is locked in the receptacle assembly. The unlatched state signal indicates that the release mechanism is being moved to the unlocked position.