A dual-purpose mounting structure and enclosure for a surface mounted surveillance
camera system used alternatively to mount a camera system including back box directly
onto a surface, or to mount the camera system such that the back box is recessed
behind the surface. The enclosure and mount includes a back box having a flush
flange assembly and a detachable surface mountable adaptor. For a surface mount,
the adaptor is attached directly to the flush flange for mounting the enclosure
onto a planar surface such as below a ceiling line. For a recessed mount, an opening
is provided in the planar surface, the adaptor is inverted and placed around this
opening on the opposite side of the planar surface, the back box is inserted through
the opening and into the adaptor, and the adaptor is attached to the back box assembly.