Title:

Single Pair Ethernet Signal Switcher - Removing Physical Presence Requirements for a Remote and Automated World

Quality assurance test engineers at the UNH-InterOperability Lab must run tests that require driving and monitoring a selection of DC signals. While the number of signals are numerous, there are limited ports on the test equipment, and only a few signals need patching for any given test. The selection of signals may vary between the 209 different tests, and must be re-routed frequently. Currently, testers must leave their desk to manually modify the test setup in another room. This, of course, posed a considerable issue at the onset of the COVID-19 Pandemic when physical access was not possible. In order to enable future remote testing and human-free automation, there is a need for a remote patching device. This project aimed to design such a device in its entirety. This included defining design constraints, developing conceptual designs, selecting components and generating an electrical schematic, prototyping and iterating PCB versions, and final deployment and testing of the product.

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