Hi Kai,
Hopefully someone helped you with this request as my reply is very late.
The Ultrix will respond to TSL protocols 3.1 and 5. Al you need to do is send a TSL message to the Ultrix and it will receive it. You can see the status f incoming connections in dashboard under the connections option in Ultrix.
You may need to set up the Ultrix to display tally by navigating to the Ultrix system status in Dashboard click on the database tab (on the top) and then check the "enable tally" box.
TSL protocol documentation can be found on their website
https://tslproducts.com/media/1959/tsl-umd-protocol.pdf
No licenses required.
#Ultrix