CONNECTA-2 and Safe4RAIL-2 projects met in CAF facilities in Beasain, Spain, on 27th, 28th and 29th May 2019 for the first TSN interoperability tests. Within these joint tests two different TSN IP cores to be used in Urban and Regional demonstrator of CONNECTA-2 project have been tested. These tests have validated the full interoperability of IP core deployed by TTTech, to be used in consist and train switches of the demonstrators, and the IP core from SoC-e to be used in the TSN controller deployed by CAF.