A multi-layer trigger system, based on programmable logic devices hosted on VME boards, has been implemented. It is completely scalable and suitable for handling from a few up to a few hundred channels. Custom software for monitoring and controlling the trigger system has been developed.
Comment: 23 pages, 4 figures, Published on Nuclear Instruments and Methods in Physics Research A. For associated software/firmware package see https://github.com/NUCLEX-Fi/FTBOX.git