An event system distributes all timing signals to all parts of accelerator by way of broadcast. It can satisfy all requests of SSRF main timing system with clear network
high cost effectiveness
advanced technology
good isolation
easy update and expandability. In the paper
it is introduced how to complete the basic tasks of SSRF main timing system with the event system. The test proved that the jitter between main voltage and 500 MHz RF source was 31.44 ps.