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4023
Users
INTRODUCTION
TRANSMITTING
When
transmitting,
data entered
at
the
keyboard
is
sent
to the
computer
as indicated
by
this figure.
Data
to
the
computer
is
encoded
to indicate the
specific
character
which
is
entered
by
the operator.
Data
may
also
be
transmitted
from
auxiliary
devices to the
computer,
or
may
be
sent
from
the
keyboard
to the
auxiliary devices.
With
the
DIRECT/BUFFER
switch
at
DIRECT,
no
action
is
taken
on
the data
by
the
Terminal
unless
an
"echoing"
condition
exists,
under
which
circumstance the
4023
accepts
it
as
received
data.
With
the
DIRECT/
BUFFER
switch
at
BUFFER,
data entered
at
the
keyboard
is
stored
in
the
Terminal
memory
and
displayed;
it
is
not
transmitted
until
the
operator
activates
an Enter
or
Send
sequence
using the
SEND/ENTER
key.
COMPUTER
AUXILIARY
DEVICES
ii:
RfPfv
B.T..
,0OQ
ENTER
or
SEND
COMPUTER ECHO
LOCAL ECHO
(5®®
BSS51
DIRECT
If
if
f
'*
If
'I
;
|
*
'
£0>
ho*».
«hr.
«*-
£
&.
**«.
mm
,
1
t4M-
Hnflj.
Fig.
1-3
®
1-5
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