Real-Time System Integration Bus (RTSI)
NI-DAQ devices use the Real-Time System Integration (RTSI) bus to easily synchronize several measurement functions to a common trigger or timing event. In a PCI system, the RTSI bus consists of the RTSI bus interface and a ribbon cable. The bus can route timing and trigger signals between several functions on as many as five DAQ devices in the computer. In a PXI system, the RTSI bus consists of the RTSI bus interface and the PXI trigger signals on the PXI backplane. This bus can route timing and trigger signals between several functions on as many as seven DAQ devices in the system. Refer to the KnowledgeBase document, RTSI Connector Pinout, for more information.