TAC Xenta 300 devices without /N/P (networking and presentation) could be upgraded by ordering an upgrade from the factory.
Example of a 302/N/P label. Example of a non-/N/P 302 label.
TAC Xenta 301, TAC Xenta 302
TAC Xenta 300 controllers without the /N/P does not have functions for networking or to be connected to a presentation system, like TAC Vista.
TAC Xenta 300 controllers without the /N/P could be upgraded to /N/P by following the process described in the attached datasheet.