using Time Capsule for TM backups on existing network

Hiya!

I've searched and searched, and just can't seem to find the answer to this, so I figured it was time to stop lurking and finally ask!!!!

I need to set up a Time Capsule on an existing network (Luxul router and three access points), so that I can back up my MacBook Pro and my Mackbook Air. Is there any way to eliminate the router function of the Time Capsule and use it only as a backup hard drive for these devices? That's all I really need this thing for, as my WiFi is rock solid, and the router is certainly good enough.

Any help would be greatly appreciated!

 

I knew it had to be that easy, I just couldn't for the life of me find it stated anywhere...

Thanks!