Data Communications
This mode
is
controlled
with
the
following character sequences:
OLE STX
Starts
transparency.
OLE ETX
Ends
transparency.
or
OLE ETB
OLE OLE Allows one DLE
character
to be sent. Note
that
this
will
vary
with
the
parity
used.
OLE SYN Allows one SYN character to be
sent
(for synchronous operation).
Not
in-
cluded
in
text
or BCC.
OLE ENQ Aborts
current
transmission. A BCC
character
is
not
expected.
Once
in
transparency
mode,
in
order to send
HP
multipoint protocol control
characters
and
have
them
interpreted
as
control characters
rather
than
binary
data
the
control
character
must
be preceded by a single
<OLE>
character. Single
<OLE>
characters
are
seen
as
the
beginning of control sequences
rather
than
data. The first
<OLE>
character
of
the
above
sequences
is
never
included
in
the
BCC.
OLE insertion is
not
done for control characters
that
are
not used
as
part
of
the
protocol (such
~"'"
as
<CR>,
<LF>,
<HT>,
<VT>,
<OCI>,
or
<DC2».
':9
The
terminal
always accepts
transparent
data.
To
cause
it
to send
transparent
data
you use
the
~~Xmi
tXpar"
field of
the
datacomm configuration menu described
earlier
in
this
section.
If
this
feature
is
enabled
the
terminal
will
ALWAYS
send
transparent
data.
Note
that
whenevercontrol charactersequences
are
used
in
transparent
mode
they
must
have
proper
parity
or
they
will not be
interpreted
as
control characters.
7-38
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