Do you have a question about the ELAC DS-S101-G and is the answer not in the manual?
Connect the server to your home network via LAN for internet and NAS access.
Connect USB drives to the server for local music storage and access.
Connect your NAS to the network and configure the app for access.
Connect analog audio outputs using RCA cables to your receiver or amplifier.
Connect digital audio outputs using coaxial or optical cables.
Connect the supplied AC adapter to the server and a wall socket.