Huawei MC509 ユーザーズマニュアル
HUAWEI MC509 CDMA LGA Module
AT Command Interface Specification
AT Command Interface Specification
Serial Port Control Commands
Issue 01 (2011-08-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
53
5.2 &D–Command for Setting the MT Action in
Response to the DTR Signals
Response to the DTR Signals
5.2.1 Syntax
Command
Possible Response(s)
&D[<value>]
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>
5.2.2 Interface Description
This command sets the MT action when data terminal ready (DTR) signals change
from ON to OFF.
from ON to OFF.
5.2.3 Parameter Description
<value>:
0: The MT ignores the DTR status.
1: When DTR signals changes from ON to OFF, the MT switches to the command
mode and maintains the current conversation (reserved and not supported at
present).
mode and maintains the current conversation (reserved and not supported at
present).
2: When DTR signals changes from ON to OFF, the MT switches to the command
mode and interrupts the current data conversation (CSD, packet-switched (PS) data
service); when DTR=OFF, automatic answer is disabled (default value after startup).
mode and interrupts the current data conversation (CSD, packet-switched (PS) data
service); when DTR=OFF, automatic answer is disabled (default value after startup).
In case of using the command without <value>, <value> is set to 0.
5.3 &S–Command for Setting the Changing Mode of
DSR Signals
DSR Signals
5.3.1 Syntax
Command
Possible Response(s)
&S[<value>]
<CR><LF>OK<CR><LF>
In case of an MT-related error:
<CR><LF>ERROR<CR><LF>