Specifications

TC35i AT Command Set
Confidential / Released
TC35i_ATC_V01.05 Page 53 of 278 04.08.2003
2.47 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 specifies the DTE-DCE bit rate. 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 bit rate currently used
by the DTE.
A selected bit rate 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 bit rate will not be saved and, therefore, re-synchronized after re-
starting the GSM engine (see Chapter 2.47.1).
Response
OK or if error is related to ME functionality: ERROR / +CME ERROR: <err>
Parameter
<rate> bit rate per second
0 (Autobauding, see Chapter 2.47.1)
300
600
1200
2400
4800
9600
14400
19200
28800
38400
57600
115200
230400 (This rate cannot be used with TC35i Terminal.)
In order to account for greater amounts of data it is recommended to choose a
minimum bit rate of 2400 bps. If the ME is operated in Multiplex mode we suggest
a minimum bit rate of 4800 bps.
Reference
V.25ter
Note
Factory setting is AT+IPR=0 (autobauding). It cannot be restored with AT&F. The
current setting will be preserved when you download new firmware or when the
ME is powered down.