This connector has snap-fit lock including a partially deformable locking member which is mounted on the housing so as to be axially slideable between an extended locking position and a retracted position; and a biasing spring which axially bias said locking member to its locking position. The PDA recruits communication with a peer, such as a beacon, via this link, and the PDA and peer exchange messages containing the URLs of their proxies within the Internet. This suspended spring is connected with tilted mirror at one side and is anchored on a substrate at the other side via a post.