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echo: aust_modem
to: Bill Grimsley
from: Danny Keogh
date: 1996-09-17 14:52:18
subject: Re: Modem Speed?

While sitting on cloud 9, Bill Grimsley said to Danny Keogh something about 
    Modem Speed?

 BG> Danny, at 14:59 on Sep 02 1996, you wrote to William Brackenridge...
 
 WB> I have a 386 with an ordinary Serial Port.  Currently, I have a 2400
 WB> modem and I am thinking of buying a faster one.  Could anyone tell me
 WB> the maximum speed of modem which would work with my computer. 
 
 DK> If you have standard com ports, don't try and go above 14.4K for
 DK> an external.  It will probably work, but you can't guarantee
 DK> reliable transfers.

 BG> That's not true at all.  In fact, I often used to run my old 33k6
 BG> Sportster under Qmodem (MS-DOS) on my son's 386DX40 with a 16450 UART,
 BG> and was seeing transfer rates in the order of 3350cps, with NO errors
 BG> whatsoever.  The bottom line is that if you are careful, it can be
 BG> done, and quite easily too, even under a decent MTing OS like OS2/2,
 BG> for example. 

When I said "standard com port"  I meant the old 8250 chips.  Try
running them with a 28.8K modem and see how stable it is.  You
are right though, most of the 16xxx series chips will work.
                       
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