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iTegno 39XX GPRS Modem
AT Commands Guide
02000C17
•
v1.5
Confidential
All specifications are correct at the time of release. iWOW Connections owns the proprietary rights to the information contained herein this
document. It may not be edited, copied or circulated without prior written agreement by iWOW Connections Pte Ltd. © 2011, 2012 iWOW
Connections Pte Ltd
176
12.3
Restore Default Factory Settings &F
Description:
This command is used to restore the factory settings being set by iWOW.
Syntax:
AT&F
Command
Possible Responses
AT&F
OK
12.4
DCD-Usage &C
Description:
This command controls the Data Carrier Detect (DCD) signal. Pin 26 will have to be connected to detect the line
signal received.
Syntax:
AT&C<n>
Command
Possible Responses
AT&C<n>
OK
AT&C0
OK
Note: DCD always on
AT&C1
OK
Note: DCD matches state of the remote modem’s data carrier (ON when CONNECT message is
received)
Defined Values
<n>
0 =
DCD always on
1 =
DCD matches the states of the remote end’s data carrier