High end applications.PrimuX for professionals (up to 4 primary rate access ports).The PrimuX high end adapter versions are the first choice for building huge fax servers, voting systems, chatrooms, switching systems or call centers. High quality, reliability and advanced technology of the PrimuX high end adapters reflect more than 20 years of GERDES know-how and confirm the company's international market leadership position on the ISDN technology market.Today, PrimuX adapters used e.g. for the connection of new digital fire department and police networks and also for highly sophisticated alert systems for hospitals and industrial applications.PrimuX has furthermore established itself as a key component in the rail transport technology sector. Global companies like Bombardier, Chinese Railway and Siemens, rely on PrimuX for the GSM-R connection and control of their high speed trains.