FarSync BERT Tester software

Current software release for the FarSync BERT Tester product: Version

Changes since version 1.2.0


  • Updates to the driver to provide compatibility with the FarSync Flex V3
  • fsbert install package has been signed
  • BertClient in the LabView folder updated
  • fsbertif.dll has been enhanced to detect more reliably the end of a test
  • firmware update to correct an issue of false reporting the LOS signal under some test conditions
  • added firmware support for native clock rates 200Khz and 10.71Mhz


  • Support for the use of User Test Patterns
  • Support for testing devices/cabling on Multi-Drop networks
  • Support for testing Round Trip Delays
  • Support for bi-directional clocking

Version 3.0.0

  • Support for hardware-based BERT operation.
  • Support for line rates up to 16Mbps.
  • Support for both 32 and 64-bit LabVIEW.
  • Add global reset to defaults menu option.
  • Rationalisation of UI with respect to colours and error/information dialogs.
  • A range of performance enhancements.

Version 2.0.4

  • Terminal Timing support for V.35.
  • NRZI Clocking is supported when using a Flex V2 device.
  • 4-wire, point-to-point RS485 operation corrected.
  • Corrected persistently starting/stopping a test causing the port to be unavailable for a short periods.

Version 2.0.3

  • PCIe version now in addition to the USB version.
  • Manchester and Conditioned Di-phase encoding is now supported.
  • Terminal Timing is now supported.
  • 4-wire, point-to-point RS485 is now supported.
  • Data Inversion supported.
  • Support for all patterns in all Async data formats (e.g. character lengths).
  • Native configuration support for all port properties directly from the BERT GUI.
  • Audible alerts have been introduced.
  • Line errors (FRAMING, PARITY) are now reported.
  • The LabView API has been extended to include all options now available in both GUI and script mode.

Download Request Form

To be able to download this latest software release, please fill in this download request form. Once your request has been approved, you will be contacted by email with details on how to obtain the software.

Note: all fields are required.