COURIER HIGH SPEED MODEMS
FAX OPERATIONS
FAX
MODEM GUIDELINES
Using
your
fax
modem
for facsimile operations requires
compatible facsimile application software.
You can
use
the
following
command
format to switch
between
fax
mode
and
data
mode. (Use as
you
would
a
standard
AT
command.)
AT +FCLASS=n
The valid n values are 0
and
1.
Use n = 0 (AT+FCLASS=O) to
switch the fax
modem
to
data
mode. Use n = 1 (AT +FCLASS=l)
to switch the fax
modem
to fax mode.
To
determine
which
mode
the fax
modem
is
currently
in,
use
the
following
command.
AT+FCLASS?
The
modem
will
return
a
value
of 0 to indicate
data
mode
or
1 to
indicate fax mode.
NOTE:
Whenever
the
fax
modem
is reset
by
using
the
ATZ
command,
by
toggling the DTR signal,
or
by
turning
the
power
off
and
on, the
modem
will be set to
data
mode.
A NOTE TO PROGRAMMERS
If
you
want
to
know
more
about
the
supported
fax
commands,
refer to
the
standard
for the Service Class 1 fax protocol.
ANSI/EIA/TIA-578-1990 (EIA-578)
Asynchronous
Facsimile DCE Control
Standard
November, 1990
Approved:
October 22, 1990
You can obtain a copy of this
standard
by
contacting Global
Engineering Documents;
at
1-800-854-7179.
E-2 Fax and Other Operations
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