GX7300 Series

20 Slot, 3U PXI Chassis


The GX7300 Series mainframes are 20-slot PXI chassis that can accommodate up to 19 instruments as well as a PXI controller (an embedded CPU or a PXI bus expander interface such as a MX interface). The 3U form-factor provides a compact test system foot print and provides users with the flexibility to employ both PXI and Compact PCI 3U modules.


System power for the GX7300, GX7310, GX7302 and GX7312 models are provided by a dual power supply configuration which provides a total of 900 watts. The GX7305 and GX7315 feature a high capacity, 1600 watt system power configuration and is capable of supplying 60 watts of power to each PXI peripheral slot - making it the ideal PXI chassis for high peformance and high channel count digital I/O applications.

Forced-air cooling for the GX7300, GX7310, GX7302 and GX7312 chassis is provided by a 235 CFM fan located at the rear of the chassis with dedicated fans supplying cooling for the dual system power supplies. This cooling configuration, in conjunction with air plenum within the chassis, provides airflow for all module slots per the PXI specification. The GX7305 and GX7315 employ four 100 CFM fans located at the bottom of the card cage assembly with dedicated fans for the system power supplies.

The GX7300 Smart Chassis supports the monitoring of slot temperatures and system power supply voltages as well providing the ability to program or map each PXI trigger line from one PCI segment to another. In addition, the user can program the temperature monitoring function for specific warning and shutdown limits as well as monitor and control the chassis' fan speed. All user specific setups can be stored in non-volatile memory as a user configuration and can be used as the default setup for normal chassis operation.

The GX7302 and GX7312 offer the ideal solution for supporting mass interconnect interfaces from several manufacturers including Virginia Panel, Mac-Panel, ITT Cannon, and others. These chassis include an integrated 2U cable tray, a hinged interface assembly that accommodates all popular mass interconnect devices, optional openings at the top & bottom of chassis for cable routing, and recessed PXI instruments (recessed by 2.5" or 4.5") providing up to 7" of space for interface wiring. In addition, the GX7302 and GX7312 can be ordered with the Mac-Panel Scout receiver, providing a wireless mass termination interface.


Slot 1 is dedicated to the system controller (embedded or remote, using a PXI bus expander). A PXI Star Trigger Controller or any PXI or cPCI instrument can be used in slot 2. Slots 3 - 15 support the PXI Star Trigger and any PXI or cPCI instrument. Slots 16 - 20 accommodate PXI or cPCI instruments without the Star Trigger.

Programming and Software

The chassis is supplied with the GxChassis software which provides software libraries and a driver, programming examples, virtual panel application and documentation. The virtual panel provides a way to control, configure and display the smart chassis' features, including temperature monitoring, trigger line mapping, and power supply voltage monitoring. A 32/64-bit Windows DLL driver is provided with various interface files for accessing the DLL functions from programming tools and languages such as ATEasy, LabVIEW, C/C++, Microsoft Visual Basic®, Delphi, and more. A User's Guide provides documentation that includes instructions for installing, using and programming the chassis. A separate software package - GtLinux - provides support for Linux 32/64 operating systems.