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Plenum Locations

Chapter 12, "Installing WLAN Products," but this section briefly discusses some special regulations that can affect locations of devices.

Many areas in buildings are considered plenum locations, which means these areas are used for air handling. In many buildings, areas such as those above ceiling panels, below raised floors, or in wiring risers between floors are used as part of the air system and require products to be plenum rated. In the United States, the UL2043 certification provides for testing that is similar to most local fire-code requirements.

Although many APs are designed to be placed in plenum areas, many are not. Make sure you select a product that meets the location needs of your installation. Also keep in mind that any cables and antennas that are placed or run through these areas must meet the local plenum codes.