Tandy DCM212 Operation Manual page 55

Appendix
A
F,
f
Fast dialing
speed
If
you want
to tone or pulse
dial using
faster signaling
rates,
you
can
use the
fast
command.
This
command
forces the
Modem
to dial
while
in the
automatic
originate
mode
at 10
digits
per
second
for tone-dialing
or 20 pps
for pulse-dialing.
Note:
The
fast dialing speed
command
is
mainly used
in tone
dialing.
Fast pulse
dialing (20
pps)
is
seldom
used.
When
you
experience
difficulty
in
fast pulse
dialing,
set
the
rate to slow.
Q
q
Self-test
flag
The
analog loop
self-test
mode
forces the
Modem
to "talk to
itself"
The
internal
switches are
selected
such
that data transmitted
from
the
computer
is
looped back
to the
receiver
and
processed
just as
if
it
were
in communications
over the telephone
lines.
Keys
entered from
the
com-
puter
are
echoed
to the
screen.
With
this
feature,
you
will
be
able
to
tell if
the
Modem
is
functioning
correctly.
The
analog loop
self-test
does not
test,
nor
analyze the
condition
of your
telephone
circuits, since
this
mode
does not com-
municate
over the
lines.
The
Q
command
is
one of
several
toggling
commands
that the
DCM
212
uses.
When
the power
is
first
applied, the
listing line
ANALOG
LOOP:N
tells
you
that the
Modem
is
not
selected to
go
into
an
analog
self-test
mode
when
it
exits
the
command
receptive
state
with
the
X
command. When
the
line reads
ANALOG
LOOPY,
then
the
Modem
is
ready
to enter the
self-test
mode
upon
exiting
the
command
receptive
state.
You
can
press
©
as
many
times
as
you
like.
Each
time
the key
is
pressed, the
state
of
the
Modem's
internal
switch
is
changed from
JVb
to res
and
back
again.
The
self-test
mode
does not
start until the
com-
mand
receptive
state
is
exited.
Tb
exit
the
self-test
mode,
input the abort character CTRL
T.
The
screen
shows
DISCONNECT
and
the
Modem
goes
into
OFF-LINE
state.
To
return to
command
receptive
state,
enter the wake-up command
*
.
.
49