The CMS492C conceals AV equipment above a 2' X 2' ceiling tile and supports a 1.5" NPT column drop for mounting projectors within the same tile grid providing a clean professional look for classrooms and conference rooms. Column not included, must be purchased separately. - Optimal pipe flexibility within the tile helps with less reliance on image correction improving image quality - Drop carriage door improves accessibility and serviceability providing full access to equipment - Detachable power housing can be pre-installed with electricians on site and assembled to the storage box at a later time - Inside the plenum box or facing the room - Up to 2 single gang or 1 dual gang outlet - 4 nested knockouts for 1-1/4", 1", & 1/2" diameter conduit - Built in ventilation - AV tray supports a variety of AV components - Ships with 1 shelf, 2nd shelf sold separately see CMSUNV2 - 1 RU rack rail brackets sold separately, see CMS1RU - Overall weight capacity 100 lbs (45 kg) - 50 lbs (22 kg) for projector ceiling plate - 25 lbs (11 kg) per shelf location - Ships with speed connect installation hardware - Lightweight construction, one man installation - Plenum rated, UL approved in accordance to 2043 - TAA Compliant