[GreenKeys] Asr33: How are BREAK encoded ?

[Julien Scrofani]

Does it mean that a blank tape will be interpreted as several BREAKs in
sequence by the loop adapter ?
Regards,

Julien

2017-02-21 14:13 GMT+01:00 Steve Garrison <steve.n4tty at gmail.com>:

> Hey guys, break is not a character!  It is a lack of current in the loop.
> In other words just as if the loop power supply quit.  Nothing should be
> punched in the tape.  The machine runs open!
>
> The pic of the tape sent earlier looks to me as if the loop current was
> being randomly turned back on during each punch cycle causing a random
> pattern of holes to be punched.
>
> Steve G./N4TTY
> Sent from my iPhone
>
> > On Feb 20, 2017, at 11:05 PM, Jones, Douglas W <
> douglas-w-jones at uiowa.edu> wrote:
> >
> > From: Julien Scrofani [julien.scrofani at gmail.com] Monday, February 20,
> 2017 2:09 PM
> >
> >> I taped several BREAK sequences with the tty puncher, pressing my
> finger more or less time on the key.  The punched codes differ a lot (see
> pic). When I read the tape, toward my terminal via the usb current loop
> adapter, all BREAK are correctly converted.
> > Are they coded with several bits patterns ? If not, how are they
> interpreted correctly by the adapter ?
> >
> > The adapter recognizes break by the lack of a stop bit at the end of the
> character, not by the bit pattern.
> >
> >                Doug Jones
> >                jones at cs.uiowa.edu
> > <IMG_0520.JPG>
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