How many PXI bus segments can I connect together with MXI-Express Gen-3 x16?
The PCI specification allows up to 255 bus segments. MXI-Express Gen-3 x16 does not limit
this number, but the maximum number of bus segments allowed can be BIOS or operating
system dependent. Also, a computer will use several PCI bus segments internally, and the
MXI-Express Gen-3 x16 link also uses multiple PCI buses internally. Every PCI Express slot
uses one bus number. A PXI Express module will use additional bus numbers only if it
includes a bridge or switch.
Will my PC work with MXI-Express Gen-3 x16 products?
It depends on the robustness of the BIOS in your PC. In most cases, the BIOS should be able
to enumerate the bridge resources that the MXI products require for operation, especially for
smaller MXI system configurations. For more information, refer to the NI Developer Zone
article,
Tips to Help You Successfully Use NI MXI-Express Controllers
, at
ni.com
.
What is the maximum length of a MXI-Express Gen-3 copper cable?
The maximum length for a MXI-Express Gen-3 copper cable is 3 m. National Instruments
offers 3 m copper cables. Refer to the
Cabling
section for more information.
MXI-Express Gen-3 x16 Upgrade Questions
What are some of the improvements in MXI-Express Gen-3 x16?
MXI-Express Gen-3 x16 incorporates the latest technology to include:
•
Support for Gen 3 PCI Express slots.
•
Improved performance.
•
Modular cabling for flexibility in bandwidth management and fanout.
Can I use an older MXI kit and MXI-Express Gen-3 x16 kit in the same multichassis PXI
system?
Yes. You can mix different MXI kits to connect multiple PXI and PXI Express chassis
together.
Is a specific boot ordering a requirement with MXI-Express Gen-3 x16?
Yes. The requirements of the PCI bus still mandate that you must power on secondary
PXI/PXI Express chassis before powering on the host PC when using MXI-Express Gen-3
x16. MXI Express Gen-3 x16 will generally power up the entire system appropriately when
you power up any component of the system.
For more details, refer to the
Powering On the MXI-Express Gen-3 x16 System
section.
General Software
Under which operating systems will MXI-Express Gen-3 x16 products work?
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ni.com
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MXI-Express Gen-3 x16 User Manual
