Siemens MC35 - Manual (Page 38)

AT Command Set
MC35_ATC_01_V03.02 Page 38 of 228 13.03.2002
2.45 AT+IPR Set fixed local rate
Test command
AT+IPR=?
Response
+IPR: (list of supported auto-detectable s), (list of supported fixed-only
s ) OK
Parameter
See write command
Read command
AT+IPR?
Response
+IPR: OK
Parameter
See write command
Write command
AT+IPR=
This command specifies the DTE-DCE bitrate. When you set a fix rate, make sure
that both DTE (TE) and DCE (= TA) are configured to the same rate. When you
select autobauding the DCE will automatically recognize the bitrate currently used
by the DTE.
A selected bitrate takes effect following the issue of any result code associated
with this command (e.g. OK).
The setting is stored in the non-volatile memory and will be used whenever the
engine is powered up again. However, in case of autobaud mode (+IPR=0) the
detected DCE bitrate will not be saved and, therefore, needs to be be re-
synchronized after restarting the GSM engine (see Chapter 2.45.1).
Response
OK or if error is related to ME functionality: ERROR / +CME ERROR:
Parameter
bit rate per second
0 (Autobauding, see Chapter 2.45.1)
300
600
1200
2400
4800
9600
14400
19200
28800
38400
57600
115200
Reference
V.25ter
Note
Your current setting of AT+IPR will be preserved
• when you download new firmware (i.e. a firmware update does not restore the
factory setting);
• in the event of power failure.
Generally, AT+IPR=x should be used as a standalone command. If nevertheless
combinations with other commands on the same line cannot be avoided, there are
several constraints to be considered:
• Avoid combinations with the AT commands listed in Chapter 1.5.2.