Lambrecht Ser[LOG], Operator'S Manual

Page: 78 / 129

LAMBRECHT meteo GmbH Ser[LOG] Manual Page 78 of 129
6.1.1.9 Settings for IP communication via mobile radio modem
Modems from different manufacturers can be used for IP-based communication, provided that they sup-
port "PPP" (Point-to-Point Protocol).
In the field "Operating mode" you can choose between
• „virtual leased line“ or
• „GPRS on demand“.
With the "virtual leased line", the Ser[LOG] establishes a connection to the Lambrecht application "Me-
teoWare CS4" or "MeteoWare-Net-Center".
With "GPRS on demand" only one connection to the Internet is established. For both types, Ser[LOG]
can use "NTP","FTP" and "Email". If "SMS" is activated, the data connection (2G, 3G, 4G) is terminated
and an SMS connection is established every time an SMS is sent. During this time SER[LOG] cannot
use NTP, FTP and Email. After sending the SMS, the data connection is re-established.
The access data to the mobile network of the service provider are entered in the fields "APN","User"
and "Password".
If you are communicating with a public APN, activate the checkbox "Automatic DNS assignment" (de-
fault).
If you are working with a private APN, this checkbox must be deactivated. In this case, only the IP
addresses available behind the private APN can be used. This applies to the "virtual leased
line","NTP","FTP" and "Email". SMS sending is not supported for private APNs.
Note:
The use of a private APN requires the use of special SIM cards issued by the respective network
operators. These cards usually do not support SMS sending.