Specifications

AT Command Set
TC35-ATC-01-V02.10 Page 32/145 02.10 / 23.05.2001
2.43 AT+IPR Set fixed local rate
Test command
AT+IPR=?
Response
+IPR: (list of supported auto-detectable <rate>s), (list of supported fixed-only
<rate>s) OK
Parameter
See write command
Read command
AT+IPR?
Response
+IPR: <rate> OK
Parameter
See write command
Write command
AT+IPR=<rate>
This command determines the data rate of the TA on the serial interface. A
selected bit rate takes effect following the issue of any result code associated
with this command (e.g. O.K.).
The selected bit rate is stored into non-volatile memory and is also used after next
power-up. However, in case of autobaud mode (+IPR=0) the actually detected bit
rate is not saved, and has to be determined at next power-up again (see notes
below).
Response
OK
If error is related to ME functionality
ERROR/+CME ERROR: <err>
Parameter
<rate> bit rate per second
0 (Autobauding, , see pg. 10)
300
600
1200
2400
4800
9600
14400
19200 recommended
28800
38400
57600
115200
Reference
V.25ter
Note
1. AT+IPR=x can be combined with other command strings on the same line.
Regard restrictions in chapter 1.2 (see pg. 9) and below!
2. If switching to autobaud mode (+IPR=0) is combined with other commands
on the same line (see above), switching to autobauding will take place just
after the response is output by the TA to the last command on that line.
3. When using AT+IPR=x, a delay of 100 ms is needed between a response to
the last command on the same line (e.g. OK) and the next command.
4. If autobaud mode is active:
a) Before a new bit rate is detected (by receiving the first At Command
string, see pg. 10), unsolicited result codes (if any) will be send with the