VISUAL
TECHNOLOGY
INCORPORATED, 540
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01876
3.2.2.18
Parity Select
The
Parity Select feature determines
whether
an
odd
or
even parity checking scheme will
be utilized. If
the
Parity feature
is
disabled,
the
Parity Select feature will be disregarded.
3.2.2.19
Bits Per Character
This feature determines
whether
each transmitted character will contain 7
or
8
data
bits.
When enabled,
this
feature will cause 8 bit characters
to
be transmitted with bit
#8
( L.S.B.)
always set
to
space
(0).
When disabled, each transmitted character will contain 7 data bits.
See Figure
2-1
for possible
byte
configurations.
3.2.2.20
Refresh Rate
50
and
60
Hz refresh-rate capability
is
built into
the
basic
unit
and
is
determined by this
feature. When this feature
is
OFF,
60
Hz
is
selected, when ON,
50
Hz
is
selected.
3.2.2.21 Transmit Speed
This feature
is
used
to
select
one
of
the
16 available transmit baud rates. When
in
SET-UP B
mode, each depression
on
the
rn
key will cause
the
terminal
to
step through and dis-
play
the
various transmit baud rates until
the
desired transmit speed
is
reached.
3.2.2.22
Receive Speed
This feature
is
used
to
select
one
of
16 available receive baud rates. When
in
SET-UP B
mode, each depression
of
the
[JJ
key will cause
the
terminal
to
step through and display
the
various receive baud rates until
the
desired receive speed
is
reached.
3.2.2.23
Answerback Message
The
Answerback Message
is
set
in
a manner different from
other
terminal features.
The
Answerback Message will be automatically sent
to
the
host
computer
upon request, (with-
out
affecting
the
screen),
or
whenever CTRL-BREAK
is
depressed. Answerback
is
set per
the
following procedure:
1. Enter SET-UP B mode.
2.
Depress
the
SHIFT and A keys simultaneously.
The
terminal will display
"A="
on
the
screen.
3. Enter
the
message
terminator
character. This character will
no~
be
part
of
the
Answerback Message and may be any character
not
used
in
the
Answerback
Message.
4. Enter
the
Answerback Message which may be a maximum
of
20
characters long,
and may contain any ASCII characters including control codes. If control codes
are
part
of
the
message,
they
will be displayed
as+
when entered.
5. Enter
the
message
terminator
character
to
end
the
Answerback Message.
After completing
the
above steps,
the
Answerback Message
is
selected
on
a
temporary
basis.
The
Answerback Message may be stored on a fixed basis, like any
other
SET-UP
feature, by performing
the
SAVE operation.
19
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