USB to serial adapter

Matthias Apitz guru at
Sun May 3 09:26:02 UTC 2015

El día Saturday, May 02, 2015 a las 11:42:45PM +0200, Polytropon escribió:

> On Sat, 2 May 2015 16:55:00 +0200, Matthias Apitz wrote:
> > I have an old VT100 terminal and want this connect to a laptop running
> > FreeBSD which has only USB ports (just for fun to participate in some
> > Vintage Computer Festival). Anybody knows a good adapter which works
> > with our uplcom(4) driver?
> I'd be interested in that topic, too. I have the DEC vt101
> which still works (tested with _real_ serial port), but
> as serial ports are vanishing on desktops, and are being
> nonexistent on laptops, this would be a nice recipe to
> have in order to bring a piece of museum art back to life.

I have pulled mine (which is a VT102, not 100) out of the dust, cleaned
it "como díos manda" and powered it on. It runs the selftest fine and
one can enter into setup mode, i.e. keyboard and tube are working.
The complete manual is still available here:

I have now to look for an USB-serial adapter. Will let you know how it
wild end up.


> Furthermore, I'd be interested if this approach will only
> work for communication devices (serial terminal lines), or
> if it can also be used for pointing devices (serial mice,
> maybe even digitizer tablets).
> -- 
> Polytropon
> Magdeburg, Germany
> Happy FreeBSD user since 4.0
> Andra moi ennepe, Mousa, ...
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Matthias Apitz, guru at, +49-170-4527211    +49-176-38902045
"Wenn der Mensch von den Umständen gebildet wird, so muß man die Umstände menschlich bilden."
"Si el hombre es formado por las circunstancias entonces es necesario formar humanamente
las circunstancias", Karl Marx in Die heilige Familie / La sagrada familia (MEW 2, 138)

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