COURIER HIGH SPEED MODEMS
A
TQO
<Enter>
A TVl <Enter>
(to enable the message)
(to
display
a verbal message)
6.
Review
the
Settings
Supplement
that
came
with
the
modem
or
your
communications
software
manual
to see
what
Carrier
Detect (CD)
operations
your
software
requires.
Then
check to see if DIP switch 6 is
set
correctly.
7.
A rare condition is
that
your
terminal
or
computer
reverses
the
send/receive
functions at
the
RS-232 interface. See
Appendix
B-1,
Appendix
B-3,
Quad
switch,
and
your
equipment
documentation.
Displays double characters
Both
your
modem's
and
software's local echo
are
on. You
can
turn
your
software's local echo off.
Or
turn
the
modem's
echo
off
by
either resetting DIP switch 4
and
sending
the
modem
the
A TZ
command,
or
by
sending
the
modem
the
ATEO
command.
Your
computer
...
Reacts as though a data link has been established, but no call has
been received
DIP switch 6 is set
ON
at
the
factory for
Carrier
Detect (CD)
override,
but
your
system
may
require
that
the
override
be
turned
OFF.
Review
your
terminal's
manual,
the
Settings
Supplement
that
came
with
the
modem
or
your
communications
software
manual
to see
what
CD
operations
are
required.
Then
check to see
if
DIP
switch
6 is set correctly.
When the modem
is
in
Answer mode, acts
if
a Carriage Return has
been entered, but nothing has been typed
at
the keyboard
Your software
may
be
misreading
signals from
the
modem
as it
automatically
sends
a Carriage
Return
and
a Line Feed before
and
after
the
RING
and
CONNECT
messages.
Sending
the
Quiet
Mode
command,
ATQl
<Enter>,
should
solve
the
problem.
0-2
Problems and Solutions
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