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000346_news@columbia.edu _Thu Feb 22 15:16:30 2001.msg
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From: "dls2" <dlshearer@home.com>
Subject: Re: interfacing to FANUC CNC controller
Message-ID: <A5el6.297975$w35.48976056@news1.rdc1.nj.home.com>
Date: Thu, 22 Feb 2001 19:52:00 GMT
Organization: Excite@Home - The Leader in Broadband http://home.com/faster
To: kermit.misc@columbia.edu
"Frank da Cruz" <fdc@watsun.cc.columbia.edu> wrote:
> dls2 <dlshearer@home.com> wrote:
> : but do appear in the session log. Shouldn't the DC
> : (Device Control) characters be stripped out of the session log,
> : the same as for the terminal screen, having been interpreted
> : as XON/XOFF signaling, rather than as textual content?
> :
> But you said the DC characters were Ctrl-R and Ctrl-T. Those are
> not Xon and Xoff. Xon is Ctrl-Q, Xoff is Ctrl-S. Kermit is doing
> its job.
****
DC1 11 ^Q device control 1 - turn on the paper tape reader.
In early documentation, this was called XON.
DC2 12 ^R device control 2 - turn on the paper tape punch.
DC3 13 ^S device control 3 - turn off the paper tape reader.
In early documentation, this was called XOFF, The use of
XON/XOFF (DC1/DC3) for flow control stems from their use to
control the flow of data from the paper tape reader attached to a
Teletype.
DC4 14 ^T device control 4 - turn off the paper tape punch.
****
http://www.cs.fiu.edu/~smithg/cop5621/lowascii.html
So, should Kermit be corrected, in this regard?
-- Derrick Shearer