TRENDnet TEW-687GA 1.0R User Manual page 39

Renew PIN
Create a random number that is a valid PIN. This becomes the bridge's PIN. You can then copy
this PIN to the wireless router's WPS section.
PBC Settings
The push button method can be used to allow wireless clients to connect to the router without
entering/remember any encryption keys. The user can use the PBC method by pressing the
WPS button on the side of the router or select the Start PBC option here.
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