Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!rutgers!pyrnj!bartal!monymsys!david
From: david@monymsys.uucp (David Kozinn)
Newsgroups: comp.dcom.modems
Subject: Re: telebit speed
Keywords: telebit baud uunet
Message-ID: <1990Aug27.214508.23523@monymsys.uucp>
Date: 27 Aug 90 21:45:08 GMT
References: <150@grumbly.UUCP>
Organization: MONY Financial Services, Microcomputer Systems, Teaneck, NJ
Lines: 17

In article <150@grumbly.UUCP> root@grumbly.com writes:
>I've recently started using a Telebit T2500.  I'm getting transmission
>rates of about 1700 cps from me --> uunet, but only 800-1100 cps 
>from uunet --> me.

Aside from what the others have mentioned, this could also be the dreaded 8250
slowdown problem. It seems that on many (most?) 386-based systems, the serial
drivers can't keep up with input at full speed using the stock 8250 chip. The
solution is to replace it with a 16550AN chip and use the FAS 2.06 replacement
serial driver that's available out there in net-land. Due to hardware
constraints, I wasn't able to replace the chip, but just the change in the
driver made a substantial change in incoming speed.
-- 
David Kozinn                     | UUCP:   uunet!vmp!monymsys!david
MONY Financial Services MD 75-14 | Domain: monymsys!david@vmp.com
Glenpointe Centre West           | GEnie:  D.KOZINN 
Teaneck, NJ 07666-6888           | Phone:  +1-201-907-6990