THE LEVEL-1 MUON TRIGGER FOR RUN-2 OF DO

We describe the Level 1 muon trigger system for Run 2 of the D empty s et colliding beam experiment at the Fermilab Tevatron. The Level 1 muo n trigger rate for high P-T Single muons and low P-T dimuons is design ed to be less than 25% of the 10 kHz total Level 1 trigger bandwidth a t a peak luminosity of 2 x 10(32)/cm(2)/s. The muon trigger logic make s use of tracks from the central fiber tracker and hits from all muon detector elements. Details of event synchronization, event buffering, and FPGA trigger logic are given. Results on Gbit/s serial link transm ission of data over coaxial cable are shown. Simulation of the muon tr igger system is discussed.