HUAWEI MG323 GSM M2M Module

 

AT Command Interface Specification

Commands for Serial Port Control

4.5.3 Setting the Baud Rate of the DTE-DCE

Write

AT+IPR=<rate>

command

 

Function

Sets the baud rate of the DTE-DCE.

Response

z In case of successful execution: <CR><LF>OK<CR><LF>

 

z In case of an error related to the MT: <CR><LF>+CME ERROR:

 

<err><CR><LF>

Note:

zTo set an adaptive baud rate, run AT+IPR=0.

zTo set a fixed baud rate, ensure that the baud rates configured for the TE and TA are the same.

zWhen running the at command to set baud rate adaptation, ensure that AT ahead of the command is in upper case.

zAfter baud rate adaptation is enabled, if you want to change the baud rate of Application Procession, do the following: Set the baud rate, disable and enable the serial port or change the state of DTR (the interval between changing the status of the serial port or the DTR must be over two seconds), and then synchronize the serial port with capital "AT" in the command..

zIn multiplexing mode, a baud rate higher than 115200 bit/s is recommended

4.6AT+CMUX - Command for Setting Multiplexing

The AT+CMUX command enables or disables the multiplexing function.

4.6.1 Querying the Supported Settings for Multiplexing

Test AT+CMUX=? command

Function Queries the supported settings for multiplexing.

Response <CR><LF>+CMUX: (list of supported <mode>s) , (list of supported <subset>s),(list of supported <port_speed>s),(list of supported <N1>s),(list of supported <T1>s),(list of supported <N2>s),(list of supported <T2>s),(list of supported <T3>s),(list of supported <k>s)<CR><LF>

<CR><LF>OK<CR><LF>

Parameter description

Issue 02 (2010-11-23)

Huawei Proprietary and Confidential

40

Copyright © Huawei Technologies Co., Ltd.

 

 

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Huawei MG323 manual AT+CMUX Command for Setting Multiplexing, Setting the Baud Rate of the DTE-DCE, Test AT+CMUX=? command