MX 3500 is the master unit of the evacuation system DXT 3000, dedicated to small and medium size applications, where an EN54-16:2008 system is required. It includes a digital DSP-based master unit equipped with up to 6 RCF Class D+ power amplifiers, able to provide up to 500W on 100 V or 70 V speaker lines. A spare power amplifier with automatic replacement of a faulty unit is configurable too. It hosts batteries and the necessary EN54-4 circuitry for the DC back-up. Furthermore it offers inputs, controls and pre-recorded messages to get a real plug & play solution. The system can be completed with monitored paging consoles BM 3804, BM 3804FM and 6 button extensions BE 3806, allow to complete the installation by adding live announcements. Local single-button paging consoles (not monitored) BM 3022 and background music programs can be implemented as well. DXT 3000 system has been designed to be wired by using very convenient fire-rated J-TYPE cables for paging console and interlink connections.