ASBUs allows all the digitizers to be clocked at precisely the same time. The position of a card into the crate is automatically detected therefore enabling the system to calibrate the channel timing information.
Synchronous digitizing improves the accuracy of cross-channel measurements and is essential for accurate time correlation. The ASBus system can also be used to phase-synchronize all digitizers to an external standard (such as a 10 MHz reference).
ASBus can also be used to improve trigger flexibility by allowing any trigger input (channel or external trigger input) to be used as the trigger source for all the other digitizers in the system. A simple software function allows the combination of the digitizers in order to make them appear as a single instrument with more channels.