VTI Instruments CMX18 18-Slot 3U PXI Express Chassis

VTI Instruments CMX18 18-Slot 3U PXI Express Chassis

Product Overview:

  • 18-slot PXI Express chassis with 1 system controller slot, 6 peripheral slots, 10 hybrid slots, and 1 timing slot
  • High bandwidth PCIe Gen 2 backplane with 2 GB/s bandwidth per slot (4 GB/s on high-bandwidth slots) and 8 GB/s system bandwidth
  • Rugged construction with extended temperature range
  • True 4U chassis
  • IEEE-1588 distributed instrument synchronization
  • Built-in system-monitoring provides confidence in system operation and simplifies debugging



  The CMX18 is an 18-slot PXI Express mainframe with 1 system controller slot, 6 PXIe Peripheral slots, 10 PXIe hybrid slot and 1 PXIe timing slot.


High Bandwidth

The CMX18 uses a 4-lane Gen 2 PCIe backplane to achieve data rates of up to 2 GB/s per slot and 8 GB/s system.


IEEE-1588 Distribution

When used with the EMX-2500 Gigabit Ethernet LXI controller, the CMX18 allows timestamping of data from all plugin modules on a common time-base for advanced timing and synchronization. In addition, it also provides the capability to synchronize PXI systems with LXI instruments.

Innovative Cooling, Reduced Noise

The CMX18 uses innovative cooling methods to optimize airflow while keeping noise under control. Air is pulled from the bottom and sides of the chassis, rather than the top, and exhausted through the rear. The absence of apertures on the top surface of the chassis protects it from damage due to spills. 


Table-top and Rack-Mount Options

The CMX18 comes standard with handles and rubber stoppers for table-top use. Traditional rack-mount options with front and rear support brackets are available. 


Receiver Assemblies and Integrated Subassemblies

Cable and pull-through receiver assemblies are available for the entire range of PXI Express products offered by VTI. 
The CMX18 is also available as a part of the CMX34 integrated core ATE subsystem. The CMX34 combines the CMX18 with an EX1208A 16-slot LXI mainframe to create a tightly synchronized subassembly that is uniquely optimized for switching and I/O. In addition, the CMX34 includes mass interface connectivity options that provide a fully integrated switching and instrumentation subsystem that includes cabling and receiver modules and can be readily dropped in to a test system.