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10. INTERFACE
143
LZT 123 7361 R1B
10.14 AT+IPR Cable Interface Port Command
Specifies the data rate at which the DCE will accept commands, in
addition to 1200bits/s or 9600bits/s (as required in v25ter, subclause
4.3). It may be used to select operation at rates used by the DTE, which
the DCE is not capable of automatically detecting.
The specified rate takes effect following the issuance of any result
code(s) associated with the current command line.
10.15 AT*E2ESC M2M Escape Sequence Guard Time
Defines a guard time for the escape sequence in GPRS to return to on-
line command mode i.e. if +++AT<CR> is received either as part of the
data stream or a terminating string from the application and no further
data is received for the duration of the guard time the modem will go
Description Command Possible Responses
Defines fixed DTE rate AT+IPR=[rate] •OK
• ERROR
Read the current setting AT+ IP R ? • +IPR:<rate>
•OK
• ERROR
Show if the command is
supported
AT +I P R= ? • +IPR: (), (list of fixed-
only <rate>s)]
•OK
• ERROR
<rate> Description
Discrete integer
value
The <rate> value specified shall be the rate in bits per second at which
the DTE-DCE interface should operate, e.g. “19200” or “115200”.
The rates supported by a particular DCE are manufacturer specific.
The following rates, are supported;
1200
2400
4800
9600
19200
38400
57600
115200
230400
460800
Description Command Possible responses
Set GPRS online command
guard time
AT*E2ESC=[<gt>] •OK
• ERROR
Read the current setting AT*E2ESC? *E2ESC: <gt>
Show if the command is
supported
AT*E2ESC=? •OK
• ERROR