Rodolfo brings up a very good point.

There are other switches with such circuitry, I have seen one at Fry's for
about $360.  I have seen other ones advertised in computer magazines.
 There is actually a company here in Houston which makes these things,
called Rose.  They are on the WWW.  If any one is interested, I can dig up
the URL.  Just e-mail me or the list.

Kind regards,

Denys. . .
[log in to unmask]     http://www.hicomp.com/hicomp
(800) 323-8863    (281) 288-7438    Fax: (281) 355-6879

----------
From:   Rodolfo Lopez[SMTP:[log in to unmask]]
Sent:   Thursday, 27 March, 1997 2:06 PM
To:     [log in to unmask]
Subject:        Re: Keyboard/monitor switcher?

Hold your horses! ...

Robert Wu wrote:
>
> I have way too many PCs and keyboards sitting in my office.
> I know there are devices that allow me to use one keyboard
> and one monitor while switching between each PC as needed
> with buttons, but I do not know who the manufacturer is.
>
> Suggestions?  Much appreciated.

and Joe Howell replied,

Robert,

I have a simple 4 position switch which allows me to switch keyboard,
monitor and mouse between 4 devices.  There is no label on it, it
simply says "Data Transfer Switch" on the cover.  It looks just like
the generic DB25 switch box you can buy at Office Depot/Max.  Maybe
try Black Box Catalog as they are big into this type of connectivity.
Hope this helps.


VERY, VERY IMPORTANT!

If you plan to use a monitor/keyboard switch, be careful to check which
applications you plan to leave running when switching. Some applications
will interact with the keyboard and/or monitor periodically. We have
used two kinds of switches,  a VERY expensive 8 cpu switch (+$2000.00)
from COMPAQ, and a cheapo  (- 500.00) whose brand I can't recall. COMPAQ
has a 4 cpu model that I guess should cost a little above $1000.00.

The important thing is this: COMPAQ's switch has intelligent circuitry
embedded that "fools" the cpu "convincing" it that a monitor and
keyboard are still connected. This avoids system hangs whenever the
application left running tries to interact with the keyboard or monitor.
We have NT server consoles on the COMPAQ switch without any problems. On
the other hand, we tried to use the cheap switch with an application
that controls some equipment and it always hangs.

Maybe another vendor has switches similar as Compaq's.

Rodolfo Lopez
Desktop/Integration Services Supervisor
(plus part time and backup HP3000&NT admin, business systems analyst,
etc.)
Merck Sharp and Dohme  de P.R.
[log in to unmask]