Serial
Port
Configuration
Page
|
36
Serial
Port:
When
enabled,
the
external
serial
port
PAD
function
can
be
used.
When
disabled,
no
PAD
function
is
available,
and
the
port
is
left
free,
for
use
by
an
ODP
application.
Show
Version
on
Boot:
When
enabled,
the
router
model
number
and
firmware
version
are
transmitted
out
the
serial
port
at
router
boot.
Additionally,
"OK"
is
transmitted
when
router
is
ready
to
receive
data
and
when
PPP
connection
is
made.
When
disabled,
these
indicators
will
not
be
transmitted
out
the
serial
port.
Baud
Rate:
Sets
the
baud
rate
of
the
serial
port.
Settings
may
range
from
300
to
115,200
bits
per
second.
The
default
baud
rate
is
115,200
bps.
Inter
Character
Timeout:
Enter
a
value
from
1
to
65,535
to
set
the
interval
between
packets
being
sent.
DTR:
Select
to
define
the
Data
Terminal
Ready
behavior.
See
Table
6
for
Value
options
and
their
definitions.
Table
6
–
DTR
Settings
Value
Definition
AT&D0
Ignore
DTR.
AT&D1
If
in
the
Online
Data
State,
upon
an
on
‐
to
‐
off
transition
of
DTR,
the
modem
enters
Online
Command
State
and
issues
an
OK
result
code;
the
call
remains
connected.
Otherwise,
ignore
DTR.
AT&D2
If
in
the
Online
Data
State
or
Online
Command
State
upon
an
on
‐
to
‐
off
transition
of
DTR,
the
modem
performs
an
orderly
clear
‐
down
of
the
call
and
returns
to
the
command
state.
Automatic
answer
is
disabled
while
DTR
remains
off.
AT&D4
The
modem
auto
‐
dials
the
default
remote
station
upon
an
off
‐
to
‐
on
transition
of
DTR
and
enters
the
Online
Data
State.
The
modem
ends
the
call
and
enters
the
command
state
upon
an
on
‐
to
‐
off
transition
of
DTR.
AT&D5
The
modem
auto
‐
dials
the
default
remote
station
upon
an
on
‐
to
‐
off
transition
of
DTR
and
enters
the
Online
Data
State.
The
modem
ends
the
call
and
enters
the
command
state
upon
an
off
‐
to
‐
on
transition
of
DTR.
AT&D6
Upon
an
on
‐
to
‐
off
transition
of
DTR,
the
modem
performs
an
orderly
clear
‐
down
of
any
session
and
turns
OFF
the
RF
module.
Upon
an
off
‐
to
‐
on
transition
of
DTR,
the
modem
turns
ON
the
RF
module
and
reestablishes
the
radio
session.
AT&D7
Upon
an
on
‐
to
‐
off
transition
of
DTR,
the
modem
performs
an
orderly
clear
‐
down
of
any
session
and
turns
OFF
the
RF
module.
Upon
an
off
‐
to
‐
on
transition
of
DTR,
the
modem
turns
ON
the
RF
module
and
reestablishes
the
radio
session.
AT&D8
The
modem
auto
‐
dials
the
default
remote
station
upon
determining
DTR
is
OFF
and
enters
the
Online
Data
State.
The
modem
ends
the
call
and
enters
the
command
state
upon
determining
DTR
is
ON.
AT&D9
The
modem
auto
‐
dials
the
default
remote
station
upon
determining
DTR
is
ON
and
enters
the
Online
Data
State.
The
modem
ends
the
call
and
enters
the
command
state
upon
determining
DTR
is
OFF.
Flow
Control:
Sets
the
Flow
Control
to
None
or
Hardware
control.
