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  1. newbFTE

    random faults with isolated RS-232 hub. Grounding issue???

    Hello all, this is my first post and it is a long one, sorry. I am having an issue with the use of an optically isolated RS-232 to USB four port hub. I am using the hub on an aircraft to monitor RS-232 traffic transmitted from three separate RS-232 devices. The data is sent from the...

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