This is a seven foot relay/data rack we recently installed. This is actually a intermediate distribution rack, in that, this is not the main computer room, but one closet that feeds back into the main server/computer room. Starting at the top of the rack is a fiber patch panel for multi-mode fiber risers between the two locations. Below that are the copper Category 5 enhanced patch panels; and below that are the actual ethernet switches with patch cables routed through out.