BG>FS>  BG> I don't have a mouse  I
BG>FS>  BG> know my jumpers are  fine, and I don't have call
BG>FS>  BG> waiting. I've solved the problems for the most  part
BG>FS>  BG> by connecting at lower speeds on some bbses, but I'll
BG>FS>  BG> try those, thanks.
BG>FS>
BG>FS> If your computer is really *that* old, the commport UART's
BG>FS> are probably not capable of supporting more than around
BG>FS> 9600 or 19200 bps.  If so, it could account for your
BG>FS> problems and also why it works well at lower speeds (below
BG>FS> 19200bps).
BG>    I could believe that was the problem, except that for a while it was
BG>connecting at 28.8 and 33.6 fine for a while...
Hi Ben,
Caught the end of your discussion and though I might throw in a few
comments if you don't mind.  I am running a bunch of old Zenith 286ATs
 and I don't know how old or what kind of system you are running.
 However, I have been trying to up grade on the cheap on modems for my
 own systems and have found the following to be pretty reliable
 info.
First off my processor is a 286 running at 8MHz.
As long as you don't slug/slow the processor down running some massive
com program  along with windows etc. you should have no problem running
any modem that you should hook up!  The highest speed modems operate at
Kilohertz speeds and the processors operate at megahertz speeds.  The
UART is a problem if you are still using the old ones and not the new
ones such as the 16550.  The old serial or I/O boards that you hook to
for an external modem will only handle about a  14.4 external modem.  I
started out with an internal 2400 baud and switched recently to a 14.4
external.  I am limited to that because I have the old I/O board
(orginal) equipment.  If I was to buy an internal 28 or 34 modem they
will run as long as i use simple communication software that does not
eat up a lot of processor time resulting in the thru put to the modem
from the computer being slowed down.  The new internals have the
upgraded UART.  If I go to an external one though I would have to
upgrade my I/o board to one having the new UART and be able to configure
it by jumper not by software.  As long as you are dealing just with
BBSs you should be able to do any of the above.  However, if you start
using bigger programs with lots of software watch out.  If they start
slowing the processor down your modem CPS rate will drop off.  Good
comunication software for a Dos based system is Telix.  You can find it
on most BBSs.  A good reference book on modems is called: "Hayes Modem
Communication Companion"  by C. Halliday.  I found a copy in a sale at a
local book store a few months back and it tells you just about
everything you want to know about modems and interfacing them to the
computer.
One thing that they recommend is that for higher speed modems you should
set your communication program set up for hardware flow control.  Ie.
set it to CTS/RTS hand shaking.
If you would like to discuss this further feel free.
Catch you later,
Robert Osborne
1:346/49
Internet: robert.osborne@tesla.circuit.com
 * OLX 2.1 TD * I'M DOING BETTER, I'VE ONLY JUMPED THE RAILS ONCE TODAY!
--- Maximus/2 3.01
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