  The multi-host type DAQ front-end system is proposed and a prototype system
is developed. In general, CAMAC/VME type ADC modules have a single
trigger-input (or gate-input) port. In contrast, a prototype of a new system
has multiple trigger-input ports. In addition, the Wilkinson-type and
successive approximation ADCs have the dead time, whereas, this prototype
system utilizes the combination of Flash-ADC and FPGA that enabling the
dead-time free system. Corresponding to the trigger-input ports, data are sent
to different back-end systems. So, a legacy ADC module is a 1-to-1 system, but,
this proposing system is a 1-to-X system without loss. This system will be
applied for nuclear physics experiments at RIKEN RIBF which produces intense
RI-beams. This multi-host type DAQ front-end system enables us to perform
different experiments simultaneously at the same beam line. In this
contribution, the concept and the performance-test results of the front-end
system is shown.
