Elproma Elektronika Sp. z o.o.
ul. Szymanowskiego 13
05-092 Łomianki k/Warszawy
E-mail:
office@elproma.com.pl
Tel. +48 (22) 751 76 80
www.teleorigin.com
17
8.3.
Checking the communication with the modem
Once the modem is connected you can check communication between RB865io
terminal and the PC using Telit AT Controller available here:
http://teleorigin.com/download/Tools/Common/Telit_AT_Controller_r2_2_1.zip
Configuration of the DTE (port COM) should be as follows:
Bits per second:
115200 bps
,
Data bits:
8
,
Parity:
None
,
Stop bits:
1
,
Flow control:
hardware
.
To communicate with modem use software such as Hyperterminal (AT commands) or
use attached GPRS Control v.2.1.0.0 software. For further information about GPRS Control,
refer to
GPRS Control 3.1.0.0 User's Manual
and to install refer to
GPRS Control Installation
Guide
.
Using a communication software such as Hyperterminal, enter the
AT
and
push
'enter'
button. The response of the terminal should be '
OK'
displayed in the Hyperterminal
window.
If the connection with the modem cannot be established do the following:
Check if modem is connected with PC via RS-232 or USB.
Check the configuration of the COM port.
Examples of AT commands:
ATE1
enables modem echo function,
AT+CGMI
modem answers “Telit” when connection is OK.
AT+CPIN?
shows current status of SIM card
AT+CPIN=xxxx
to enter PIN, where 'xxxx' are digitals
AT+CSQ
to verify received signal strength
ATD<phone_number>;
to initiate a voice call
ATH
to hang up a voice call
For further information about AT commands and their usage, refer to [1] / [2].
