Afro-Cuban music is the culmination of many styles in a variety of time signatures, most popularly 6/8 time. The Afro-Cuban beat typically incorporated a myriad of percussion instruments including shakers, bells, clave, and other rhythmic instruments. Watch Peter Vale demonstrate how to play a 6/8 Afro-Cuban beat on Congas.
Read more about the Afro-Cuban rhythm here: https://goo.gl/f4b4bG