add Orbi Satellite to an existing system with one Orbi Router (RBR50) and one Orbi Satellite

I have an existing Orbi AC3000 tri-band wifi router which I purchased ~4 years ago with 1Orbi Router (RBR50) and 1 Orbi Satellite (RBS50).  I am running the Orbi Router with a cable modem leased from...