Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!convex!killer!vector!CABELL.ANDREWS
From: CABELL.ANDREWS@BIONET-20.ARPA (Paul Andrews)
Newsgroups: comp.dcom.telecom
Subject: XON/OFF
Message-ID: <481@vector.UUCP>
Date: 19 Jul 88 15:28:27 GMT
Article-I.D.: vector.481
Sender: chip@vector.UUCP
Lines: 41
Approved: telecom-request@vector.uucp (USENET Telecom Moderator)
X-Submissions-To: telecom@xx.lcs.mit.edu (Mailing List Coordinator)
X-Administrivia-To: telecom-request@vector.uucp (USENET Telecom Moderator)
X-TELECOM-Digest: volume 8, issue 113, message 5

>Subject: Extra characters

>             I have a question regarding the use of TELENET versus COMPUSERVE.

>  When using TELENET, I always see two certain characters echoed back to me ,
>  especially when I am typing fast.  These are ASCII characters 17 and 19 ( I
>  can't reproduce them here, but you can look them up in an IBM extended
>  character set).  However, I don't see them when using COMPUSERVE. It is
>  very annoying to have to read what one has written with spurious characters
>  are all  over the place. I assume it has something to do with the way
>  TELENET handles the data from my modem (Everex 2400E).   Any ideas????


>                            Thanks

>  Paul Andrews      CABELL.ANDREWS@BIONET-20.ARPA:
>  -------
#############################################################################
Stupid me.........I finally figured it out by myself............

      Everex 2400 modems come with a communications program called called
BITCOM. The XON/XOFF characters being echoed back can be eliminated by the
following patch in the Bitcom terminal emulation file.   Put it anywhere
between INBUFFER and END.

                       0x11 0x00
                       0x13 0x00

I assume the INBUFFER section simply defines translations that take place
when a character is read from the host port.  The patch will therefore
translate XON (hex 11) and XOFF (hex 13) to zero.
         I still don't know why I have this problem using TELENET and not
COMPUSERVE.  Disabling XON/XOFF on TELENET (DISA_FLOW) has no effect.

               Thanks to all who answered for setting me straight.


Paul Andrews:      CABELL.ANDREWS@BIONET-20.ARPA:

----------------- Steve Bauer.....the Fenwick Flash--------------------
                          go Steve go