Helmholz 700-751-HSM11, Manual, Page: 64 / 99

64 Helmholz Modem 56k 4.1
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
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 per-
formed. 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