If the raised floor height is low (less than 12 inches deep), there may not be sufficient space for routing both cabling and power, much less for divided elevations. In this case, installing part or all of the data cabling can be installed overhead, thus significantly reducing the raised floor cabling congestion, thus preventing unbalanced distribution of HVAC system due to airflow restrictions. Since under-floor cabling requires use of plenum-rated, overhead installations of pathways offers
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Bill Detwiler is Managing Editor of TechRepublic and Tech Pro Research and the host of Cracking Open, CNET and TechRepublic's popular online show. Prior to joining TechRepublic in 2000, Bill was an IT manager, database administrator, and desktop support specialist in the social research and energy industries. He has bachelor's and master's degrees from the University of Louisville, where he has also lectured on computer crime and crime prevention.