There is a photo of it at the bottom of this datasheet standing to the left of the extrnal antennae.
http://www.alvarion.com/upload/contents/291/alv_BreezeMAX PRO_CPE.pdf
Oh right... BreezeMax Si
Are you deploying them with the external windows-sucker antennas? Or relying in their dodgy "auto switching" Internal antennas?