Intel WSAP5000 - PRO/Wireless 5000 LAN Access Point Quick Installation Manual page 12

Attach Access Point to Bracket
If the access point is to be attached to a ceiling or to a wall near the ceiling, it
should be positioned with the antenna on the bottom (as shown in the
illustrations that follow).
If the access point is mounted at a lower point on the wall, it should be
positioned with the antenna on the top (see the illustration for Desk or Table
Top location; the access point is designed so that it can be attached to the
mounting bracket tabs in either orientation).
Be sure the holes in the access point hook correctly over the mounting
bracket tabs and click into place before releasing the access point.
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