At&S Set Circuit Data Set Ready (Dsr) Function Mode - Siemens TC37 Module At Command Reference

AT Command Set
2.37 AT&S Set circuit Data Set Ready (DSR) function mode
Write command Response
AT&S<value> This parameter determines how the TA sets circuit 107 (DSR) depending on the
communication state of the TA interfacing TE.
OK
Parameter
<value>
Reference Note
V.25ter
Line state refers to RS-232 levels.
TC3X_ATC_01_V04.00
0 DSR always on.
1 TA in command mode: DSR is OFF.
TA in data mode: DSR is ON.
Page 35 of 204 29.05.2002