Sensors are often placed in areas that take advantage of pre-existing power and data cabling. These areas include wiring closets and other areas where IDFs may be located. Where these locations are somewhat shielded from the wireless environment, the sensor may be extended to just outside of these spaces using standard power cords and pre-terminated data cables, obviating the need for additional, costly fixed runs. Choosing facilities that come as close to centrally locating the sensors in the intended monitoring space should be done when practical. In instances where wiring closets, IDFs, or both are not ideally located for sensor placement, sensors may take advantage of Power Over Ethernet, either from a single power injector or a compliant switch. PoE injectors are available from Extreme Networksi.
If there are gaps in coverage, or if deployment cost is a factor (due to the required density of sensors or the cost of wiring to place sensors in strategic locations), there are several relatively inexpensive remedies. Where wiring for placement in an ideal location is impractical, employ additional sensors to correct as necessary. FCC Rules regulate the use of antennas as aids to reception for the sensors, in regard to the sensors 802.11 component. If antennas would greatly enhance the overall deployment, contact Support for guidance on the best approach for antenna application, considering both regulatory guidelines and the physical design of the sensors.
In either case, always use facility floor plans to indicate where sensors are placed and to indicate areas where a coverage test was done.