Checking The Communication With The Modem; Status Of The Modem (Leds) - Teleorigin RB600 User Manual

7.3 Checking the communication with the modem

Once the modem is connected, you can check communication between the RB600
terminal and the PC using Telit AT Controller available here:
http://teleorigin.com/file_upl/pliki/1/Telit_AT_Controller.zip
Alternatively, you can use any Terminal program. 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 the modem, use software such as Hyperterminal (AT commands) or
use the attached Telit AT Controller.
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 the modem is connected with your 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 "Quectel" when the connection is OK.
 AT+CPIN? shows the current status of the SIM card
 AT+CPIN=xxxx enter your PIN, where 'xxxx' are digits
 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].

7.4 Status of the modem (LEDs)

The operational status of the RB600 Terminal is shown by external LEDs placed on the
front panel of the modem.
The table below shows the meaning of the LEDs.
LED LED colour
name
DATA blue
GSM orange
PWR green
16
Software controlled using AT
Off – GSM module is not running
64ms On/800ms Off – module is not synchronized with network
64ms On/2000ms Off – module is synchronized with network
64ms On/600ms Off – GPRS data transmission after dialing the PPP connection
Lights when modem is power on
Description