Abstract
The present disclosure relates to a latch detection mechanism for pluggable circuit packs used in networking equipment, such as modules, line cards, plugs, or blades inserted into network element housings. Existing latch solutions are limited by insufficient finger access to Small Form-factor Pluggable (SFP) modules and optical fibers, low detection resolution causing delayed redundancy activation, excessive faceplate space requirements, and mechanical reliability concerns. To address these issues, the proposed design positions the ejector latch away from the faceplate by extending the faceplate itself, creating improved manual access to optical components. The latch incorporates a spring-loaded lever mechanism and integrates a metal-based proximity sensor within the extended faceplate arm. This sensor detects even minimal latch rotations—down to 0.5 degrees—by sensing the presence or absence of material in a rotatable latch section, providing accurate real-time lock status feedback. This arrangement requires no additional faceplate space, enhances optical port density, and eliminates the need for external unlocking tools.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Anonymous, "Novel Ejector Latch Detection Mechanism Using Proximity Sensor in Pluggable Circuit Pack", Technical Disclosure Commons, (July 30, 2025)
https://www.tdcommons.org/dpubs_series/8405