Cascade DataHub Licensing

We have three types of Cascade DataHub License:

DataHub Node Licenses

• You need a DataHub Node License on each computer running the Cascade DataHub software.
• The Node License provides unlimited DDE, Mirroring, Bridging, Scripting, ODBC, Linux and QNX connections.
• The Node License unlocks the demo software.

DataHub TCP Link Licenses

• If you connect your program using the DataHub API, you need a DataHub TCP Link License for each program connection.
• DataHub TCP Link Licenses are installed on the same computer as the Cascade DataHub that is serving the TCP/IP connections.
• If you connect using DDE, then you do not need a DataHub TCP Link License.

DataHub Web Server Licenses

• The DataHub Web Server License enables the DataHub Web Server.
• This license gives you an unlimited number of simultaneous AJAX and ASP connections to the Cascade DataHub.
• If you are using Java applets to connect to the Cascade DataHub from a web browser, then please read the special note below.

Special Case: Java Applet web connections to the Cascade DataHub

• A web page that uses Java applets to display live data from the Cascade DataHub will establish a TCP/IP connection directly to the DataHub.
• This means that you will need a DataHub TCP Link License for each simultaneous web page connection. For example, if you have 5 people viewing your Java applet page at the same time, then you will need 5 x DataHub TCP Link Licenses (installed on the Cascade DataHub computer).
• You can choose to serve the Java applet pages using the built-in DataHub Web Server, or you can install a third party web server on the same computer as the Cascade DataHub. If you choose to use the DataHub Web Server, then you will need a DataHub Web Server License in addition to your DataHub TCP Link Licenses.
• We also offer a special 'DataHub Unlimited TCP Link License' which enables unlimited TCP/IP connections to the Cascade DataHub. This unlimited license is used by customers who want to make their Java applet pages available to everyone on the web. Please contact Cogent for more details.