The “A” model can be downloaded from the official website.
As mentioned above, there are only Russian search results for the “R” model, and I believe this model was sold only in Russia.
Therefore, there is no information on teledynelecroy.com.
You may be able to find it if you go to teledynelecroy's Russian site, but don't even know if a Russian version of the site exists.
I don't know if the software for the “A” model works. The shape is exactly the same, so it might work if you are lucky.
perhaps it can't be installed as incompatible hardware during the installation process.
If you are trying to do a clean install, you have little hope.
You can get someone to get the drivers for you, but it is possible that, like the Tek TDS7K, it may not work just by installing the software.
As mentioned, it is not an old model yet and you may be able to get support for it. You could try contacting the Russian distributor, or through the official website.
mod:
I see now that the non-“A” model has the exact same shape. It must be one or the other.
I do not know if the update files available for download have the drivers, etc. needed to work.
It says that you need to register an account and that the download needs to be reviewed due to US export restrictions. It is up to you to decide if you want to do this.
Now that we are under war, will we get approval? We will have no choice but to have someone download it.
Whether or not "embedded" will affect it will depend on what was customized, but I think it will work most of the time.