D – set dtr signal, S – set dsr signal – Westermo GDW-11 User Manual
Page 165
V.24-V.25 commands 165
6615-2220
&D – Set DTR signal
Description:
This commands controls the Data Terminal Ready (DTR) signal.
Syntax:
AT&D<n>
Parameters:
<n>
0:
The DTR signal is ignored
1:
Modem switches from data to command mode when DTR switches from ON to
OFF
2:
Upon DTR switch from ON to OFF, the call is released
Command example
Possible responses
Note
AT&D0
OK
The DTR signal is ignored
AT&D1 OK
Modem switches from data
to command mode when
DTR switches from ON to
OFF
AT&D2 OK
Upon DTR switch from
ON to OFF, the call is
released
&S – Set DSR signal
Description:
This commands controls the Data Set Ready (DSR) signal.
Syntax:
AT&S<n>
Parameters:
<n>
0: DSR
always
on
1:
DSR off in command mode, DSR on in data mode
Command example
Possible responses
Note
AT&S0 OK
DSR
always
on
AT&S1 OK
DSR off in command mode,
DSR on in data mode