This paper studies basic dynamics from a novel pulse-coupled network (ab. PCN). The unit element of the PCN is an autonomous integrate-and-fire chaotic circuit having two states. For a basic master-slave PCN, we give basic classification of chaos synchronous phenomena and their breakdown patterns. Existence region of each phenomenon is elucidated in a parameter subspace. We then construct a large-scale ring-type PCN, and elucidate that the PCN exhibits interesting grouping phenomena of chaos synchronization patterns. Some of typical phenomena can be verified in the laboratory.