Analog modem emulator?
brad at heeltoe.com
Mon Aug 1 12:23:11 CDT 2005
Vintage Computer Festival wrote:
>I'm thinking back to the original intent of this. Is it that the guy
>wanting to do this (sorry, forgot who you are) wants to put a computer
>running a BBS on the internet? If so, all these suggestions are overkill.
>The best one I've heard so far is to get something that fools the computer
>into thinking it's connected to a modem when in actuality it's connected
>to some sort of terminal server that emulates ring signals, etc. This is
>also something that is somewhat easy to write with the write serial port
>driver software. A linux box will do.
Oh. Now I get it.
I'd find an old terminal server which has "reverse telnet". An Xylogics
Annex would do nicely. Then connect the serial ports on the annex
directly to the BBS box, removing the modems. No need for the modems...
(unless, of course, they are somehow wired in, in which case you'll need
another bank of modems and a bank of the phone line eliminators we
talked about earlier)
And, as "Vintage Computer Festival" wrote (whoever that is :-), you can
use any linux box to do this. This is true, but you might need a
multiport serial card and some software to 'automagically' connect the
tcp port to the serial port. I'd be suprised if that software didn't
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