AT Command Set
INSYS Modem 56k small INT 2.0/USB 1.0
62
June 06
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
The DSR signal is on the DCD line
The DCD signal is on the DSR line
(Interchangeability of the lines)
AT&S<n>
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.
The settings can be selected with this command. 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.
This command will not change the registry S23! It only changes if
the automatic speed detection is used.
AT*S0
Maintaining 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
