Chapter 2
Hardware Installation
MXI-Express x16 for PXI Express Series User Manual
2-4
ni.com
Cabling
Caution
Never touch the exposed pins of connectors. Doing so may damage the device.
Connect the MXI-Express x16 cable to the NI PCIe-8388 and to port 1 of
the NI PXIe-8388/9. The cables have no polarity, so either end may be
connected to either board.
Caution
Do not remove the cable after the system is powered on. Doing so can hang or
cause errors in applications communicating with devices behind MXI-Express x16. If a
cable becomes unplugged, plug it back into the system. (You may need to restart your
computer.)
For more information about cables, refer to the
section of
Chapter 3,
Using the Daisy Chain Topology
You can use the daisy chain topology to create systems with up to four
PXI chassis interfaced to the same host PC. Larger systems are not
supported.
If daisy chaining additional chassis, connect port 2 of the NI PXIe-8389 to
port 1 of the NI PXIe-8388/9 of the daisy chained chassis.
Notes
NI MXI-Express x16 supports wake functionality when used in any NI PXI
Express chassis or any chassis supporting 5 V
aux
power. Pressing the power button on any
chassis in the chain should power on all chassis in the chain and the host PC, provided the
host PC supports PCI Express wake.
When using chassis with no 5 V
aux
power, the PXI Express or CompactPCI Express chassis
must be powered on prior to powering on the host PC. There are no requirements on how
MXI-Express x16 expansion chassis are powered on relative to each other, as long as they
are all on before the computer is powered on.
