Chapter 1
Introduction
MXI-Express x16 for PXI Express Series User Manual
1-2
ni.com
Basic MXI-Express x16 System
The simplest MXI-Express x16 system consists of an NI PCIe-8388 in a
supported PC connected to an NI PXIe-8388 in the controller slot of a
PXI Express or CompactPCI Express chassis, as shown in Figure 1-1.
Figure 1-1.
Basic MXI-Express x16 Configuration
Larger MXI-Express x16 Systems
You can control more than one PXI Express chassis with a single PC by
using the NI PXIe-8389 in a daisy-chain topology.
The NI PXIe-8389 has two ports on its front panel: an upstream port (for
connecting towards the host) and a downstream port (which allows for daisy
chaining). In the daisy-chain configuration, as a single PCI Express x16 slot
is used in the host PC, the data throughput per device is shared between all
PXI chassis. Figure 1-2 shows an example of a daisy chain configuration.
Figure 1-2.
Daisy Chain Configuration
