Observa Telecom TD851W User Manual page 43

Push Button Configuration: Click Start PBC button when using PBC method for WPS
configuration.
1) PBC
If the wireless adapter supports WPS and the Push Button Configuration (PBC) method, you can
add it to the network by PBC with the following two methods.
Method One:
Step 1: Press the WPS button on the front panel of the Router or click Start PBC button in Figure
4-21.
Step 2: Press and hold the WPS button of the adapter directly for 2 or 3 seconds.
Step 3: Wait for a while until the next screen appears. Click Finish to complete the WPS
configuration.
TD851W 150Mbps Wireless N ADSL2+ Modem Router User Guide
37