Arrow BeagleBoneBlack Industrial (ABBBI) HW files

I’m looking for the hardware files of Arrow’s BeagleBoneBlack Industrial (ABBBI).
The hyperlinks from https://beagleboard.org/arrowbbbi aren’t defined. Is this because this board is not really open-source? Or is it because the hardware files are the same as for BBB with just a different Bill Of Materials?

Thanks!

Contact Arrow. This is their creation.

Gerald