Untested came from working system sold as seen The Tyco Fire Alarm Minerva Mx Network Card TLI800 is a high-quality fire protection equipment designed and manufactured by the reputable brand TYCO in the United Kingdom. This network card is essential for connecting and integrating different components of a fire alarm system, ensuring maximum safety and security in commercial and industrial settings. With a focus on reliability and efficiency, the Tyco Fire Alarm Minerva Mx Network Card TLI800 is a vital component in maintaining a comprehensive fire protection system for any business or facility.