On 07/08/2020 02:40 PM, Chris Adams wrote: > Once upon a time, John Pierce <jhn.pie...@gmail.com> said: >> yes, but is it 'basic serial UPS' or is it 'enhanced serial UPS' ? the >> former do NOT use the rx/tx data of the serial port at all, they ONLY use >> the serial port control signals, and they probably will NOT work with a >> USB port because they require very specific behavior from those signals at >> power up and reboot times. > I've used various serial devices, including UPSes, via various > USB-to-serial adapters (Prolific PL2303 and FTDI FT2232C), and all the > signaling works fine. Only issue you sometimes have is that there are > many cheap adapters on Amazon that claim to be Prolific or FTDI but are > in fact counterfeit clones - those may or may not work reliably for ANY > purpose. > That's the issue but I will stay with a brand-name unit.
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