[CentOS] USB-serial adapter for CentOS 7

Wed Jul 8 19:02:55 UTC 2020
Fred Smith <fredex at fcshome.stoneham.ma.us>

On Wed, Jul 08, 2020 at 01:40:27PM -0500, Chris Adams wrote:
> Once upon a time, John Pierce <jhn.pierce at 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.

Another possibility for the Original Poster:
Purchase a serial add-in card from Amazon or Newegg.
last I noticed they weren't expensive. This avoids
the compatibility-hell you may (or may not) encounter
with a USB-to-serial converter.


---- Fred Smith -- fredex at fcshome.stoneham.ma.us -----------------------------
                       I can do all things through Christ 
                              who strengthens me.
------------------------------ Philippians 4:13 -------------------------------