  Arrays of Cherenkov telescopes typically use multi-level trigger schemes to
keep the rate of random triggers from the night sky background low. At a first
stage, individual telescopes produce a trigger signal from the pixel
information in the telescope camera. The final event trigger is then formed by
combining trigger signals from several telescopes. In this poster, we present a
possible scheme for the Cherenkov Telescope Array telescope trigger, which is
based on the analog pulse information of the pixels in a telescope camera.
Advanced versions of all components of the system have been produced and
working prototypes have been tested, showing a performance that meets the
original specifications. Finally, issues related to integrating the trigger
system in a telescope camera and in the whole array will be dealt with.
