Ultra-Wideband Recording Stretches to Keep Up With Digitizers Print E-mail
Nov 01 2007
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This particular configuration was set up to capture data from a 2 GS/sec digitizer. Note the data is split into 12 serial FPDP channels, which are then routed to three recorder engines using the quad serial FPDP PMCs mentioned. This system configuration is improved over one just a couple years old, which required six recorder engines to do the same job.

 

Since every situation of this scale is differrent, the exact implementation and performance of the recording environment will vary. The main points of this architecture and its ability to scale to meet the need are very clear:

  • Digitizers continue to improve in speed,
  • Striping the digitizer output sets the stage for scalability,
  • Recording engines can be ganged,
  • Fibre Channel simplifies cabling and improves speed and function systemwide,
  • SAN topologies help scale storage capacity and function.

Stretching Isn’t Difficult

This recording architecture continues to grow in capability as the technology pieces improve. Faster digitizers, better FPGAs, higher speed Fiber Channel links, faster disk drives, better processing on recording engines, and improved switching will continue to improve speeds possible with this type of architecture. Constructing a system to record high-speed data sources isn’t nearly as difficult as it might seem at first glance.

This article was written by Tom Bohman, VP Business Development for embedded systems at VMETRO Inc. (Houston, TX). For more information, contact Mr. Bohman at This e-mail address is being protected from spam bots, you need JavaScript enabled to view it , or click here.



 

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