D-Link DAP-1520 User Manual page 26

Section 3 - Configuration
Enter the password for your uplink network.
Click Next to continue, or click Back to return to the previous step.
The DAP-1520 will re-broadcast the Wi-Fi connection from the
uplink router as extended 2.4 GHz and 5 GHz Wi-Fi networks. Enter
the SSID and password that you wish to apply to each extended
Wi-Fi network.
Click Next to continue, or click Back to return to the previous step.
D-Link DAP-1520 User Manual 22