Radio Shack TRS-80 Modem II Operation Manuals page 35

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Modem
II
Programming
Commands
Type
all
commands
in
uppercase only!
Your
Modem
doesn't recognize lowercase
letters.
Opens
the
Modem
II
for
programming.
You
must
use
*
when
your
Modem's
FORCH DTR
Switch
is
ON.
If
Force
DTR
is
OFF. you
have
the option of sending
*
or turning
DTR
OFF.
Occasionally,
your
Modem
might not
recognize the asterisk
and you
may
have
to
send
two
asterisks.
This usually
happens
after the
Modem
has disconnected
from
the
phone
lines
and has
been
reset.
C
Clear
(reset)
memory.
C
clears
your
Modem's memory
and
resets
the
Modem
to
it's
default values: 10
pps
rotary
dialing
(R and S commands).
There'll
be a six-second delay before
this
happens
and,
if
your
FORCE DTR
Switch
is
OFF,
a
loss
of
carrier will result.
There's
no need
to
type
X
after this
command.
D
''"'
'•'''.
'
''
'
••'"."••.
\ '':'!
:-M :
.y%-^x-
Dial register access.
D
clears the current telephone
number
from
memory
and must precede any
new
telephone
number.
F
Fast rotary dialing (20 pps).
If
you
don't specify
how
you want your
Modem
to dial the
number,
it
will dial rotary-style
at
10
pulses per second.
This
command
changes
the dialing
speed
to
20
pulses per second.
Before
using
this
command,
contact
your
local
telephone business
office to
check whether your
telephone
exchange can
use
20pps
dialing.
U'--
:,'
:
: -\-/'
:
'/.
-
;
.
\
'
•
: ''
;
•...','•'
^-' :
-'
:
y^x^^^
:
^M^
;:
-^^M.
Look.
I.
sends
the
current contents
of your
Modem's memory
to
the local terminal
at
300
baud, using
the
format Dnntsl where:
D =
Dial Register
nnn
=
telephone
number
and any pauses
(P)
t
=
R
(rotary
type dialing) or
T
(lone type dialing)
s
=
F(20ppsj'orS(10pps)
/
=
end
of
file
U =
Undefined
(a
blank
in
the dial register)
There's
no need
to
use
X
with
this
command.
P
Pause.
Inserts a
two-second pause
in
the dialing
sequence. This
command
is
especially useful
when
you're
dialing
from
a business
system
that
requires an
outside access code. For longer pauses,
use
more
than
one
P.
Q
Local
Loopback
Test.
This
command
puts
your
Modem
into the
same
mode
as the
LOCal
Test
Switch and
allows
you
to
perform
a
LOCal
Test.
29