any known working USB/serial converters? [drifting off...]

fred smith fredex at
Tue Jul 7 22:18:13 UTC 2009

On Tue, Jul 07, 2009 at 02:47:01PM -0500, Mikkel L. Ellertson wrote:
> fred smith wrote:
> > 
> > Do these things work "both ways?" i.e., I assume they would work if one
> > plugged the USB end into one's computer and got serial out the other end.
> > But how about plugging the usb end into, e.g., a UPS and taking the serial
> > end back to the linux box?
> > 
> > someone earlier mentioned a tripplite UPS which got me to thinking of
> > that situation: tripplite no longer offers USB-compatible software for
> > Linux--their linux versions are still serial only. makes one wonder if
> > one of these things would bridge the gap.
> > 
> If you are talking about plugging the USB end into the UPS, it is
> not going to work unless the UPS has drivers for that adapter.
> Remember, the UPS would be the "computer" end of the adapter when
> trying to use it that way.
> On the other hand, what device does the UPS look like when USB
> connected? Does it show up as a USB serial device? If so, you can
> tell the Tripplite software to use that serial port.

Um, not sure how to tell which usb device it is...

I've installed NUT and configured it to use HAL to find the UPS. Apparently,
HAL finds it, because (sometimes) the Gnome power manager appears in the
upper panel and reports there's a UPS connected. As far as I can tell, that's
the only "UI" available using NUT in that mode. but I could be wrong. I 
find the NUT docs to be somewhat inconsistent (which is understandable.)

So, my original question is more from curiosity than need.

---- Fred Smith -- fredex at -----------------------------
   "For the word of God is living and active. Sharper than any double-edged 
   sword, it penetrates even to dividing soul and spirit, joints and marrow; 
              it judges the thoughts and attitudes of the heart."  
---------------------------- Hebrews 4:12 (niv) ------------------------------
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