User guide

6615-2203

Start up guide

Follow the steps below to get the unit up and running in a simple application

Default settings of the serial interface are:

… AT+IPR=9600 9.6 kbit/s

… AT+ICF=3,4 8 databits, no parity and 1 stop bit.

… AT+IFC=0,0 RTS/CTS flow control disabled

… AT&D0 DTR signal is ignored.

Start up steps:

… Insert a valid SIM-card with the appropriate services enabled (e.g CSD data

services. GPRS etc)

… Make sure the antenna is connected and placed in the best possible position.

… Power ON the unit and make sure that the PIN code control of the SIM-card

is disabled. This can be done either with the help of a mobile phone or with

the command AT+CLCK. If the PIN code should be enabled in the application,

make sure that the correct PIN code is sent to the modem with the command

AT+CPIN

… Check on the front of the unit that the NET LED is flashing, this means that

the unit has a connection to the GSM network and that it has registered on

the network.

… Check the received signal quality with the command AT+CSQ. The result value

of the first parameter should be between 10 and 31, the value of the second

parameter should always be 0.

Windows configuration tool GD-Tool

The GD-Tool is a PC – application program with a graphical interface for easy

configuration of the complex functions found in the GDW-11.

Please refer to GD-Tool for a complete description of the functionality of the

Windows program.