AT commands
Digi TransPort User Guide
135
S31 ASY Interface Speed
Units: N/A
Default: 0
Range: 0-11
Register
S31
is used to set the speed and data format for the ASY port to which you are currently
connected.
The default value for
ASY 0
is 0, such as the port speed/data format is not set to a specific value,
it is determined automatically from the AT commands that you enter.
The default value for ASY 1, 2 and 3 is
3
, such as the ports will only accept AT commands at
115,200bps (8 data bits, no parity and 1 stop bit).
To set the speed of one of the ports to a particular value, the appropriate register should be set
to the required value from the following table:
For example, to change the speed of
ASY 1
to
38,400bps
, connect your terminal to that port with
the speed set to
9600bps
. Enter the command:
ats31=5
then change the speed of your terminal to
38,400bps
before entering any more AT commands.
The data format used when the
ATS31=n
command is entered is selected as the data format for
all further commands.
The auto-detect option is only available for
ASY0
and
ASY1
.
S33 DTR Dialing
Units: N/A
Default: 0
Range: 0, 1
S33
is used to enable or disable DTR dialing for the port. When DTR dialing is enabled, the router
will dial the number stored for that port (see
AT&Z
) when the DTR signal from the terminal
changes from
Off
to
On
.
S31
Port Speed (bps)
S31
Port Speed (bps)
0
Auto-detect
6
19200
1
Reserved
7
9600
2
Reserved
8
4800
3
115200
9
2400
4
57600
10
1200
5
38400
11
300
