Operator`s manual
5
USER
CONTROLS
The
memory
buffer
of
Telelink
I
can
save
up
to
1.5K
bytes
of
data
received
over
the
modem
before
the
information
must
be
emptied
to
the
printer
.
Generally
speaking,
when
the
buffer
is
nearing
capacity
(at
1 K bytes),
communications
over
the
modem
must
be
suspended
and
the
contents
of
the
buffer
sent
to
the
printer.
If
the
printer
is
not
on, a
printer
error
appears.
Exactly
how
suspension
of
com-
munication
for
printing
occurs
depends
on
whether
you
are in
the
Automatic
or
Manual
Mode
.
AUTOMATIC MODE
When
the
buffer
is
near
capacity,
your
system
sends an XOFF
(transmit
OFF)
character
to
the
remote
system. A
brief
delay
(one
second)
occurs
and
then
your
computer
ignores
the
modem
while
the
printing
of
stored
data
takes
place.
When
the
printing
is
done,
your
computer
returns
to
the
modem
and sends an
XON
(transmit
ON)
character
to
the
remote
system
telling
it
to
reinitiate
transmission.
Note:
Not
all
remote
systems
react
quickly
enough
for
you
to
use
the
Automatic
Mode.
You can
simulate
and
check
this
mode
by
typing
a
liDI
S (XOFF)
and
checking
the
time
it
takes
for
the
data
to
stop
coming
to
the
screen.
You
CAN-
NOT
use
the
Automatic
Mode
if it
takes
longer
than
one
second,
or
if
the
remote
system does
not
stop
at
all
on
XOFF.
If
you
try
to
use
Automatic
Mode
with
either
of
these
situations
occurring,
you
will
lose
characters
being
sent
by
the
remote
system
while
the
printing
takes
place.
Type
a Bml Q (XON)
to
continue
after
you
run this test.
MANUAL
MODE
When
you
are in
the
Manual
Mode
(and
the
buffer
is
near
capacity
of
1 K bytes),
the
system assumes
that
the
user
will
take
care
of
suspending
communications
by
the
remote
computer.
The
XOFF
character
(or
its
equivalent
for
the
remote
com-
puter
being
used)
is
typed
in
by
the
user.
When
you
are sure
the
remote
computer
has
stopped
transmitting,
start
the
print
operation
by
pressing
either
the
EJ!D11
or
DmJ1
key
. (Read
the
description
of
these keys
under
Printer
Controls
.)
When
the
printing
is
done
,
you
must
tell
the
remote
computer
that
transmission
may
resume.
To
do
this,
type
the
XON
character
(or
whatever
the
equivalent
is
for
the
remote
system
being
used).
When
you
hear a
clicking
noise,
that
indicates
the
buffer
is
near
capacity
.
If
you
allow
information
to
continue
being
received
after
the
buffer
is
full
(after
1.5K
bytes),
all
further
incoming
information
will
be
lost.
To
print
the
buffer
when
the
clicking
starts,
follow
the
steps
below
:
1. Send a
111iJ1
S
character
(or
its
equivalent)
to
the
remote
system
to
suspend
communication
.
2.
After
the
data
stops, press
EJ!D11
or
DmJ1
to
start
the
printer
.
User Co
ntrol
s 9