National Instruments Multisystem eXtension Interface NI PXI-8360 - Manual (Page 10)

Chapter 1 Introduction
© National Instruments Corporation 1-3 MXI-Express Series User Manual
Larger MXI-Express Systems
Each NI PCIe-8362 has two MXI-Express connectors. One NI PCIe-8362
may be connected to two different NwI PXI-8360 cards in separate
PXI/CompactPCI chassis. If multiple PCI Express slots are available in
the host PC, additional PXI chassis can be connected by installing an
NI PCIe-836x in any available PCI Express slot.
Figure 1-2 shows how you can use MXI-Express cards to connect multiple
expansion chassis to a PC in a star topology. The star topology is the only
supported topology due to the point-to-point nature of PCI Express.
Figure 1-2. Star Topology MXI-Express Configuration