Forums DAD | Digital Audio Denmark Legacy Products DADman does not show the AX24 under Catalina

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    NTP/DAD SupportNTP/DAD Support

      If you upgrade your MacOS to Catalina then DADman will most likely not show the AX24 in the Device List.

      The reason for this is generally that the driver for the USB to RS422 adapter does not work under Catalina. If you have an EasySync USB to RS422 adapter, then you can download an updated driver here:

      If you have a USB to RS422 adapter from another manufacturer then go to the manufacturers website and look for an updated driver.



        After upgrade to Catalina with USB-RS422 adaptor using FTDIQJ6I, DADman couldn’t show my AX24. MacOS detected FTDIQJ6I. And of course, I tried to update its driver downloaded from FTDI web site, but still NG. Could you let me know how to fix it? Need another adaptor or something?

        NTP/DAD SupportNTP/DAD Support

          The above link to the drivers is no longer valid. Please use this link instead:

          VCP Drivers – FTDI (


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