Connect the Antenna to the SBM.
Connect the SBM to the router via the network cable.
Connect the power adaptor to the SBM.
Download the SBM App (search for "medisana" in the App Store)
Start the App (The iOS device and the SBM have to be in the same WLAN network)
Press "Connect" next to your WLAN network.
Enter your network key.
The SBM should reboot now.
Disconnect the SBM from the network cable.
Check whether the LED of the SBM is blinking 2-3 times per second now.
Your iOS device will connect with the SBM automatically now.