When there is not enough room to install the DF5S Series back box in the ceiling, the back box can be attached to the surface of the ceiling. A special trim ring–the DF5S-SMKIT–hides the back box. The entire assembly (back box and dome) hangs down only 6 inches (15.24 cm) from the ceiling.
C1475M-C (9/08) Figure 2 shows incorrect radius and wiring hole measurements.
DF5S series enclosure