If you know in advance what needs to be changed, you could simply put a=20
PIC, an EEPROM and a MAX232 in the black box, and have it make the=20
changes automatically.  If you need to make decisions based on data that=20
is in the machine, you could rig up a simple audio modem and talk to it=20
through any phone.

Kerry


Denny Esterline wrote:
> As the title implies, I'm looking for some serial over Ethernet solutions=
..
>
> Skipping some of the messier details, I have a few hundred devices in the
> field that need to have some config options changed. Normally this is don=
e
> via rs232 connection to a PC -it's a little more complicated now that
> they're in customer hands in 28 different states. So, I can put a tech to
> work for the next year and really rack up his frequent flyer miles or I c=
an
> find a connectivity solution and do it remotely.
>
> What I'd like to be able to do is send the customer a "black box", have
> them plug it into their network and my device and give me a call. Using a
> similar unit at my location, we have serial access to a PC in my office. =
I
> realize that having that happen seamlessly and without the customer
> configing it to their network and being able to connect to it from my end
> without even knowing what subnet it's going to end up on is a tall order.=
...
> How close can we come? :-)
>
>
> -Denny
>  =20

--=20
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