UMTS/HSPA Module Series
WCDMA UGxx AT Commands Manual
WCDMA_UGxx_AT_Commands_Manual Confidential / Released 31 / 247
3 Serial Interface Control Commands
3.1. AT&C Set DCD Function Mode
AT&C controls the behavior of the UE's DCD line.
Parameter
3.2. AT&D Set DTR Function Mode
AT&D determines how the UE responds if DTR line is changed from ON to OFF condition during online
data mode.
AT&C Set DCD Function Mode
Execution Command
AT&C[<value>]
Response
This parameter determines how the state of circuit 109 (DCD)
relates to the detection of received line signal from the distant
end.
OK
<value> 0 DCD line is always ON
1 DCD line is ON only in the presence of data carrier
AT&D Set DTR Function Mode
Execution Command
AT&D[<value>]
Response
This parameter determines how the TA responds when circuit
108/2 (DTR) is changed from ON to OFF condition during
data mode.
OK
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