Instructions

UM-0085-B09 DT80 Range User Manual Page 210
RG
The DT80 only supports third-party email servers that:
• support LOGIN authentication
• do not require SSL (Secure Sockets Layer) encryption
Note: gmail SMTP service aspmx.l.gmail.com may be used with some limitation on destination address since it may get filtered by
destination server.
 DT80 Servers
Mobile data plans are typically set up to allow mobile client devices to access servers on the Internet. Doing the reverse,
i.e. accessing servers on the mobile device from the Internet, can sometimes be problematic.
The DT80 provides the following servers:
• command server (TCP port 7700)
• web server (port 80)
• FTP server (port 21)
• Modbus server (port 502)
If you wish to access any of these remotely using the integrated modem then you will need to ensure that your mobile
plan has the following characteristics:
• It must provide a public IP address. It need not be a static address, but it must be public. Some mobile carriers
allocate a private address, then use Network Address translation (NAT) to allow you to access external servers.
This is OK for accessing a server from the mobile device, but will make any servers on the device invisible to
the rest of the Internet.
• It must not block the ports that you wish to use, as listed above. Some mobile carriers block some or all
incoming ports, which again prevents access to mobile servers from the Internet. For example, if you wish to
access the DT80 using dEX then the incoming web server connections (port 80) must not be blocked by the
carrier.
 Security
If your mobile plan provides a public IP address then you should be aware that the logger will be visible and accessible
by anyone on the Internet, while the modem is connected. This may make it vulnerable to disruption by malicious
software that exists in the wilds of the Internet. See Security (P257) for more details on Internet security.
Getting Started
In order to use the integrated modem, it is necessary to connect the supplied external antenna, and insert your SIM card.
Figure 82: Connecting the antenna and SIM card
To connect the antenna, carefully screw the connector into the rightmost socket on the DT80 right hand side panel. (Note
that DT8xM3 models include a second connector, for a receive-only "diversity" antenna. You can optionally connect a
second antenna here to improve the receive sensitivity when connected to a 3G network.)
Note Radio emissions from the antenna can interfere with and reduce the accuracy of analog measurements taken by the DT80. To
prevent this, the antenna should be positioned at least 500mm
away from the DT80 and any analog sensor wiring.
Before loading the SIM card, ensure that the card has been activated, using the instructions provided with the SIM.