Sierra Wireless AirLink FXT Series, Руководство пользователя, Страница: 77 / 136

WA_DEV_FEX20_UGD_002 Rev 002 April 26, 2010 77
9. Communicating with the Fastrack
Xtend
After setting up the Fastrack Xtend, communications can be established by directly sending AT
commands to the device using terminal software such as HyperTerminal for MS Windows. The
following subsections describe how this is done.
Caution: Some AT commands and features in this section are not available in FXT004. Refer to section 2
Features and Services and document [10] AirPrime Q26 Elite Software User Guide and AT
Commands Interface Specification for more information on which AT commands and features are
available in FXT004.
9.1. Communications Testing
To perform a communications test after the Fastrack Xtend has been setup using the RS232 serial
link connection, do the following:

Connect the RS232 link between the external application COM port (DTE) and the Fastrack
Xtend (DCE).

Configure the RS232 port of the DTE as follows:
 COM port: 1 (commonly used port for PC serial)

Bits per second: 115200 bps
 Data bits: 8

Parity: None
 Stop bits: 1
 Flow control: Hardware

Using a communication software such as HyperTerminal, enter:
AT


When communications have been established, the Fastrack Xtend will respond with an “OK”,
which is displayed in the HyperTerminal window.
If communications cannot be established with the Fastrack Xtend, do the following:

Check the RS232 connection between the application (DTE) and the Fastrack Xtend (DCE).

Check the configuration of the COM port used on the DTE.
Refer to the table below for other AT commands that can be used after getting the Fastrack Xtend
started.
Table 51: Basic AT Commands to Use with the Fastrack Xtend
AT Command Description
AT+CGMI
To check if the serial link is OK. The Fastrack Xtend will respond with
"WAVECOM WIRELESS CPU" when it is OK.
AT+CPIN=xxxx To enter a PIN code, xxxx (if activated).
AT+CSQ To verify the received signal strength.
AT+CREG? To verify the registration of the Fastrack Xtend on the network.
ATD<phone number> To initiate a voice call.
ATH To hang up (end of call) .