User Guide

Wireless Array
26 Installing the Wireless Array
Coverage and Capacity Planning
This section considers coverage and capacity for your deployment(s), including
placement options, RF patterns and cell sizes, area calculations, roaming
considerations, and channel allocations.
Placement
Use the following guidelines when considering placement options:
1. The best placement option for the Array is ceiling-mounted within an
open plan environment (cubicles rather than fixed walls).
2. Keep the Array away from electrical devices or appliances that generate
RF noise. Because the Array is generally mounted on ceilings, be aware of
its position relative to lighting (especially fluorescent lighting) — we
recommend maintaining a distance of at least 3 to 6 feet (1 to 2 meters).
Figure 8. Unit Placement
3. If using multiple Arrays in the same area, maintain a distance of at least
100ft/30m between Arrays if there is direct line-of-sight between units, or
at least 50ft/15m if a wall or other barrier exists between units.

Note that several advanced features in this section are part of the Xirrus
Advanced RF Performance Manager (RPM). They require the license
installed on the Array to include support for RPM. Please see “About
Licensing and Upgrades” on page 321.
100 ft/ 30m
100 ft/ 30 m
100 ft/
30 m