Apple Time Machine on windows share mount?

Hi,

I am currently on Merlin 380.57 and backing up 2 macs to a 2TB HD attached to USB 3.0 port. It is working good. I also have a Win Server 2012 R2 which also acting as a file server with lots of space and data protection.

I am wondering if it possible to let the router mount to the Win server's SMB share and backup to here instead of the USB attached HD? and How?

Thanks
Leon