Doc:MSGB102A0205.doc 15/07/11 P. 19/20
3. System connection
• Connect the GSM modem programmed at point 1 with the ATL via cable code 51C7
• Connect the second modem to the PC using the standard cable provided with the modem
• Power the GSM modem and wait 30 seconds for initialisation
4. Configuration of the ATL Remote control program
• Start the ATL Remote control program from the PC with the modem already connected and powered.
• Choose the Configuration-Options menu
• Set the Connection via modem box from the General table.
• If the Modem index table is empty, enter a record with the name of the installation and the phone number
corresponding with the telephone line of the modem connected to the ATL.
• Click on OK to close and save the Options window
5. Online Connection
• Choose Call with modem from the Communication menu
• From the drop-down box choose the name of the installation to be called. The corresponding telephone
number (previously loaded in the Modem index) will be shown in the box below.
• Click on Dial
• At this point, the modem at the PC end calls the ATL modem. After a few rings the ATL modem and the
program switch automatically to the online mode.
• To end the connection, choose Modem-hang up from the Communication menu
In the event of problems…
If during the attempted call the GSM modem connected to the ATL does not ‘ring’, this means that the call
fails to reach its destination. In this case, carry out the following checks:
• Check that the signal near the GSM modem is strong enough ( > 40%). To do this, use the PM.EXE
program.
• Check that the PC modem is powered and connected with the cable to the correct serial port (the one
set in Configuration-Options-Serial port)
If the modem called rings repeatedly but the connection fails to be established (the window with the wording
‘Connection OK' is not shown):
• Check the ATL programming (see previous point 2)
• Check the ATL-modem cable 51C7
• If you are using a phone line passing through a switchboard, try to use a direct line. Some switchboards
‘alter’ the phone call and make it unrecognizable by the GSM modem.
If the PC shows the wording 'Connection OK' but then the program goes Offline:
• Check the quality of the GSM signal
• Try connecting directly from the PC to the ATL with cable 51C2 and carry out all the checks described in
the ‘Direct RS-232 connection’ chapter
• Check that the GSM modem is programmed correctly as described in the previous point 1
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