AT commands
Pocket Modem 56k
44
Dezember 05
Command Description
AT%S<n>
Ability to switch between DCD and DSR lines
AT%S0
The DSR signal is on the DSR line
The DCD signal is on the DCD line
(default)
AT%S1
Interchangeability of the lines
The DSR signal is on the DCD line
The DCD signal is on the DSR line
AT&S
DSR behavior
This command determines how the modem treats its DSR (CT107) output.
AT&S0
DSR always on (default)
AT&S1
DSR ON after a response tone has been detected; DSR OFF when no
carrier is detected any more.
AT*S<n>
Selects the transmission speed at the serial interface.
With this command the speed can be preselected This will, however, not switch off the
automatic detection. As soon as an
AT
is recognized, the serial interface will set itself to
the recognized speed and protocol.
If no
AT
is sent, the selected speed is maintained until a hardware reset is performed. If
the selected speed should be maintained longer, it must be stored with
AT&W.
Attention:
This command will not change the registry S23! It only changes if the
automatic speed detection is used.
AT*S0
maintains the current speed.
AT*S1
300
bps
AT*S2
600
bps
AT*S3
1,200
bps
AT*S4
2,400
bps
AT*S5
4,800
bps
AT*S6
9,600
bps
AT*S7
19,200
bps
AT*S8
38,400
bps
AT*S9
57,600
bps
AT*S10
115.200
bps