User's Manual

RadioFrame System Method of Procedure GSM/802.11b
Pre-Installation
32 RadioFrame Networks, Inc.
3.5 RFUs
3.5.1 Location
RFU placement is determined by first choosing an approximate location for each RFU
using basic coverage requirements, then identifying the mounting configuration for each
RFU (ceiling or wall). Typically, a floor plan of each story in the building is used as an aid
to identify RFU placement.
In addition, RFU placement requires taking into consideration such factors as interior
structures, multiple-floor installations, elevators and stairwells, and neighboring macro
cell systems.
3.5.2 Mounting
Once the approximate RFU locations have been identified, determine the mounting
configuration required for each RFU—on or above the ceiling, or on a wall. Wall mounts
are ideal, provided the wall is of low density. Mounting the RFU to a structural brick or
concrete wall can alter the unit’s omni directional pattern. Also, each RadioBlade installed
in an RFU is supplied with an antenna designed to be installed vertically and pointed
down. Do not change this orientation.
Suspended ceilings are very common in commercial buildings and mounting the RFU
above the ceiling can work well, provided lower half of the RFU is kept clear of metal
objects such as water pipes, wire bundles and light fixtures. The added benefit of an
above-ceiling installation is that the RFU is hidden yet still easily accessed. Generally,
suspended ceiling panels are of low-density lightweight materials that do not attenuate
RF. The metal grid supports typically are spaced at greater than 2-foot intervals and will
not dramatically affect the RFUs’ performance if they are kept at least 1-foot away from
the antennas.
3.5.3 Clearances
• Dimensions: 13.5" wide x 8" high x 5" deep (approx.)
3.5.3.1 Back
• 0”
3.5.3.2 Front
• 0”
3.5.3.3 Sides
• 0”