Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!portal!cup.portal.com!Gary_Edmunds_Miller
From: Gary_Edmunds_Miller@cup.portal.com
Newsgroups: comp.dcom.modems
Subject: Re: Transferring files using sz/rz between Microcoms V.32 modem
Message-ID: <22323@cup.portal.com>
Date: 20 Sep 89 19:48:58 GMT
References: <401@arnor.UUCP> <22258@cup.portal.com> <402@arnor.UUCP>
Distribution: na
Organization: The Portal System (TM)
Lines: 34

>For anyone that is interested, 
>(many thanks to Jacob Parnas), Jacob and I 
>got the Microcoms transferring files correctly. 
> There was a number of things that we did: 

>- We SET XON/XOFF off  ( this screws up Zmodem ) 
No, Xmodem/Ymodem need this but NOT Zmodem.

>- We log on at N,8,1   ( E,7,1 screws up Zmodem ) 
This is always a good idea.

>- We got the latest copy of sz and rz from uunet.(the old rz was screwed up ) 
Also a good idea to have the latest software before complaining!
 
>- Logging on at 38400, we get up 2500 CPS when transferring large files. 
What sort of files? Data, text, compressed? What sort of host?
 
>   We thought this would speed up the transfer since Zmodem 
>  transfers with serial flow control OFF, causes Zmodem to 
>  do a lot of error correcting when the buffers overflow. 
Obviously, if you disable XON/XOFF *and* hardware flow control, then
your COMM software had better be GREAT to handle 2500cps!!
 
>  Well, to make a long story short, (AT\Q3) bidirectional Hardware serial 
>  flow causes Zmodem file transfers to fail. 
No, I ALWAYS have AT\Q3, and never have a problem.  Maybe your TTY driver
is sick?
 
>- Does anyone know of an OS/2 communications program 
>  that supports 38400 baud? 
OS/2, TOPVIEW for the '90s!  Try ZCOMM/PRO-YAM under DOS. 
 
RGDS
GARY