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Description
of
the
DCM212
PROTOCOL
(DIP)
switches
DIP
switches control the
DCM212's
power-up
condition.
These
switches
must
be
set
before
you
turn the
power
ON.
First,
you
will
have
to
decide
whether
you want
to
use the
Modem
in
the
Tandy
protocol
mode
or
Hayes
protocol
mode.
If
you
are
using
Tandy communications
software,
you
will
want
to
set
it
for
Tandy
protocol.
For use with
Hayes communications
software,
set
it
to the
Hayes
protocol
mode,
(Both
the
Tandy
1000
and
1200 personal
com-
puters
can be used with
either
communications
software.)
Tandy
Protocol
When
you
select
Tandy
protocol
mode,
set
Switch 2
to
OFF.
Figure
4
shows an example of
the suggested switch
positions.
NO
FUNCTION
TRUE CARRIER
—
TANDY
PROTOCOL
NO
FUNCTION
NO
FUNCTION
J
HAYES
PROTOCOL
FORCED
CARRIER
—
'
NO
FUNCTION
NO
FUNCTION
I— AUTO
ANSWER
DISABLE
NO
FUNCTION
TRUE
DTR
FORCED
DTR
NO
FUNCTION
1
—
AUTO
ANSWER
ENABLE
NO
FUNCTION
Figure
4.
DIP
Switch
Settings in
Tandy
Protocol
Mode
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