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HUAWEI MG323 GSM M2M Module
AT Command Interface Specification Commands for Serial Port Control
Issue 02 (2010-11-23)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
42
4.6.2 Reading the Current Settings for Multiplexing
Read
command
AT+CMUX?
Function
Reads the current settings for multiplexing.
Response
z
In case of successful execution:
<CR><LF>+CMUX :
<mode>,[<subset>],<port_speed>,<N1>,<T1>,<N2>,<T2>,<T3>[,<
k>]<CR><LF>
<CR><LF>OK<CR><LF>
z
In case of an error: <CR><LF>+CME ERROR: <err><CR><LF>
4.6.3 Setting Multiplexing
Write
command
AT+CMUX=<mode>[,<subset>[,<port_speed>[,<N1>[,<T1>[,<N2>[,<T2
>[,<T3>[,<k>]
Function
Sets multiplexing.
Response
z
In case of successful execution: <CR><LF>OK<CR><LF>
z
In case of an error related to the MS: <CR><LF>+CME ERROR:
<err><CR><LF>
Note:
z
All channels have the same baud rate, which is controlled by the IPR.
z
Currently, a maximum of three channels are supported.
z
In case of multiplexing, baud rate adaptation is not supported. On the contrary, if baud rate
adaptation is enabled, multiplexing is unavailable.
z
In case of multiplexing, software flow control is not supported.
z
The TE side must use the Multi-TA tool provided by NXP.