PXI Bus expander configuration

Knowledge Base Article # Q200168

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Summary A description of several possible PXI Bus expander configurations
It is often necessary to join two or more PXI busses, or a PXI and a PCI bus together in order to control more than one chassis concurrently. This can be accomplished by the use of a PXI bus expander that introduces a PCI to PCI bridge between the two adjoining systems (either PC to Chassis, Laptop to Chassis, or Chassis to Chassis) . Several vendors offer solutions with a diverse set of configurations. This article will list the devices that Geotest offers, along with their respective configurations.

When choosing the PXI Bus Expander that is right for your application, make note of the configuration type and the bus types that will be bridged.

The following is a list of possible configurations and solutions that Geotest offers:

Desktop PC to Chassis

For example Desktop to GX7600 PXI Express Chassis
PXI Bus expander configuration

GX7990 - 132 MB/s with a copper parallel type connector
GX7992 - Star Fabric type connector
MXI-4-C - 132 MB/s with copper serial type connector
MXI-4-F  - 132 MB/s with fiber optic connection allowing a long cable length up to 200 meters
MXI-EXPRESS - x1 lane, single port (one chassis)
MXI-EXPRESS - x1 lane, dual port (two chassis')
  • PCI Express to PXI Express  GX7600 Chassis only
MXIe1-EXPRESS - 192 MB/s Express x1 connection
MXIe4-EXPRESS - 798 MB/s Express x4 connection
Laptop to Chassis
MXI-PXI-L - Star Fabric type connector
MXIe1-PXI-L - ExpressCard Laptop Interface
  • ExpressCard to PXI Express  GX7600 Chassis only
MXIe1-EXPRESS-L - ExpressCard Laptop Interface
Chassis to Chassis

PXI Bus expander configuration
GX7990-1 - 132 MB/s with a copper parallel type connector
GX7992-1  - Star Fabric type connector
MXI-4-C - 132 MB/s with copper serial type connector
MXI-4-F -132 MB/s with fiber optic connection allowing a long cable length up to 200 meters


The above mentioned part numbers represent a kit, that includes two devices, each attached to its respective bus, and a cable that connects them. Each part in this kit can also be ordered separately upon request.
Article Date 12/22/2009 9:58:52 AM     Updated: 9/15/2015 9:06:21 AM
Keywords PXI, Bus, Bus Expander, GX7990, GX7992, MXI, MXI-4

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