Path: utzoo!utgpu!attcan!uunet!husc6!bbn!mit-eddie!killer!vector!westmark!dave
From: westmark!dave@rutgers.edu (Dave Levenson)
Newsgroups: comp.dcom.telecom
Subject: Re: extra characters
Message-ID: <514@vector.UUCP>
Date: 31 Jul 88 20:28:07 GMT
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In article <465@vector.UUCP>, CABELL.ANDREWS@BIONET-20.ARPA (Paul Andrews) writes:
>
>            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)...

These characters are generally called X-ON and X-OFF or DC1 and DC3.
On most ASCII keyboards, they are represented by ^S and ^Q.  When
you receive the X-OFF character, the receiver is telling you to stop
sending.  It will send you the X-ON when it is again ready to
receive data.  Most systems allow you to pause their output by
sending them the X-OFF (^S) character, and to resume by sending them
the X-ON (^Q) character.

--
Dave Levenson
Westmark, Inc.		The Man in the Mooney
Warren, NJ USA
{rutgers | att}!westmark!dave