D-Link Xreme N DWA-160 User Manual page 21

Section 3 - Configuration
Personal Identification Number (PIN)
If you want to connect using the PBC method, refer to page 20. To use the PIN
method, select PIN (Personal Identification Number) and click Next.
Make sure your access point or wireless router is close by. Write down the number
on the screen. Enter this number in your access point or wireless router. Please
refer to the manufacture's manual for instructions.
Once you click Next, you will have 2 minutes to enter this number in your access
point or wireless router.
D-Link DWA-160 User Manual 21