SPEC Board


Low cost and versatile PCIe carrier compatible with White Rabbit technology


The SPEC is an FMC carrier that can hold one FMC card and an SFP connector. It support 4-lanes PCIe connection. By using different FMCs, you can customize for your target application. Using White-Rabbit FMC cards, it provides synchronization features for different applications: ADC, TDC (Time to Digital Converter), DDS (Direct Digital Synthesizer), Fine Delay, Digital I/O, etc.


  • Sub-nanosecond time accuracy.
  • Thousands of nodes.
  • Distance range: over 80 km using fiber.
  • 4-lane interface on the PCIe side.
  • LPC (Low pin count) connector on the FMC mezzanine slots.
  • Ubuntu LTS supported.
  • Box available for installation in racks.


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