How to Use AUSST and Creative Cloud desktop to deploy AcrobatDC？

I had build up a internal adobe update server with AdobeUpdateServerSetupTool.exe ( ver 4.3.0.3），AdobeUpdater.Overrides had been deployed to client PC

; Adobe Creative Cloud desktop x4_7_0_400 had been installed in client PC

But when try to install AcrobatDC，it still download from adobe official server not internal server;

What should I do to install AcrobatDC through the internal server?

Thanks.