Instructions
UM-0085-B09  DT80 Range User Manual  Page 215 
RG 
Verifying Modem Operation 
If the settings described above are set correctly then it should now be possible for the DT80 to establish an Internet 
connection. There are a few different ways of testing this. 
Modem Status Screen 
The simplest method of verifying basic Internet connectivity is to use the modem status screen on the DT80's display. 
This does not require an Ethernet/USB connection so it is a convenient method if automatic configuration was used. 
The procedure is as follows: 
1.  Ensure that your SIM card has been activated and inserted into the DT80, and that the antenna is connected, 
as described in Getting Started (P210). 
2.  Use the arrow keys to scroll down to the modem status screen. It should show Modem is off. 
3.  Press the Func key to bring up the function menu, then select Start comms, and press OK/Edit. 
4.  Verify that the small red light next to the antenna connectors is now on. 
The modem status screen will show a series of status messages, beginning with: 
Starting modem.. 
Then, if the SIM has a PIN set it will display a prompt: 
  Enter SIM PIN: 
  █ 
Use the Up and Down arrow keys to set each digit, and use Left and Right to move between digits. When done, press 
OK/Edit. Assuming the PIN was entered correctly you will then see: 
  Registering on 
  mobile network 
If all goes well then something similar to the following will be displayed: 
  Telstra 3■■■□ 
  203.112.100.109 
In this example, the display indicates that the logger has connected to a 3G network (indicated by the "3"), operated by 
Telstra, with good signal strength (■■■□), and the DT80's IP address is 203.112.100.109. 
If the final screen is not displayed, refer to Troubleshooting and Advanced Configuration (P217). 
To close the connection, press Func to bring up the function menu, then select Stop comms. 
Command Interface 
If you configured the integrated modem by sending PROFILE commands (using DeTransfer or the dEX web interface 
command window), then it is convenient to test the modem using the command interface. 
Start a communications session as follows: 
  SESSION START 
SESSION: Starting 
At this point the small red light next to the antenna connectors should be on. 
If the PIN has not been set correctly then SESSION: SIM PIN required will now be displayed. At this point you can 
either enter the PIN using the 
PROFILE HOST_MODEM PIN=nnnn command, or enter it using the keypad and 
display. If the PIN has already been set correctly, or the SIM has no PIN set, then the modem will proceed to connect to 
the network. 
If all goes well then a message similar to the following should be displayed within 60 seconds or so: 
  SESSION: Ready (Telstra,3G,-81dBm,123.209.132.251) 
This shows the same information as on the modem status screen: carrier, network type, signal level (the higher, or less 
negative, the better. A signal level of -60dBm is very good, while -90dBm is poor.) and IP address. 
If an error message is displayed, refer to Troubleshooting and Advanced Configuration (P217)
.You may now use the 
command interface to test certain other network features. 
To verify the network connection to a server on the Internet, use the 
PING command (see Ping (P221)): 
PING google.com 
  66.102.11.104 responded in 816 ms 










