001-0003-822 Rev 1
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Many of the modem features available using the web interface can also be accessed via the RS232
serial interface. Table 14.1 lists the various serial AT commands that can be used to configure and
operate the modem via the serial port.
Table 14.1: Serial AT Commands
Command Description
AT+LCPAST
=1 Configures the serial Terminal Emulator to direct recognized AT commands
to the cell module, as opposed to the modem-emulator of the unit. Note:
The Default Value of this setting is AT+LCPAST=0
=2 Configures the serial Terminal Emulator to direct all AT commands to the cell
module, as opposed to the modem emulator of the unit. Note: This mode
can only be exited by power-cycling the modem.
Dialing Related Commands
AT+LCGASC
Active Connection:
? Displays current active profile connection.
=0 Terminates the connection and prevents further attempts during the current
session.
=1 This command tells the modem to dial out using the settings of profile 1. It
will automatically redial if the connection is dropped.
AT+LCIFCG?
Displays “eth0” and “ppp0” connection information. “eth0” are the statistics for
the Ethernet jack and “ppp0” are statistics for the modems PPP connection via
the antenna IP. If you do not see the “ppp0” section you are not actively
connected.
AT+LCPRT
Periodic Reset Timeout
? Displays current timer setting.
=0 Disables timer (default).
=n Sets the modem to reboot once every n minutes.
Serial Commands
AT+LCPRFL
Dialing Profile:
? Displays the current profile settings.
=<ProfileNumber>,<Number>,<UserName>,<Password>,<Transport>,<Mode>,
<IPAddress>,<Port>
<ProfileNumber> Usually 1
<Number> Phone number to dial. Defualt is ATD#777
<UserName> User Name if required to login to 1xRTT. Do not leave blank, use
a single space if no username,
<Password> Password if required to login to 1xRTT Do not leave blank, use a
single space if no password.
<Transport> 0 = TCP, 1 = UDP
<Mode> 0 :Modem acts as client, 1 :Modem acts as server.
<Local Encoding> Always set to 0
<IP Address> The IP To Connect To When Acting As A Client , or the Trusted
Incoming IP To Listen To When Acting As Server. A wildcard value of 0.0.0.0
will allow any incoming IP address access.
<Port> Port To Connect To When Acting As A Client. Trusted Incoming Port To
Listen To When Acting As A Server. Traffic on this port is forwarded to the
DE-9 serial connector of the modem and converted to ASCII by stripping off
the TCP/IP Headers and adding TCP headers to outgoing ASCII strings. This
is called PAD (“Packet Assembler/Dissassembler”).
AT+LCICTO
Sets the inter-character timer. Default is 50 ms.
