The design of high speed trigger multiplexer module for the Belle II Cylindrical Drift Chamber detector

We have developed a trigger multiplexer module for the Cylindrical Drift Chamber (CDC) detector for use in the future Belle II experiment. To fully use the existing crate, the module is VME based, capable of handling input lOOGbps and output 40Gbps with optical fiber connections. To lower the cost and the schools infrastructure consideration, the module is designed with the Altera Arria II chip with Aurora protocol. The first prototype modules have been made and the data-link tests between CDC front-end and trigger main module have been performed. Results will be presented and discussed here.