Aria-130 Digital Key Telephone System
Issue: 1.2
Installation Manual
144
2.
Base Station Range
In a typical office environment, each base station has a broadcast range of 50 meters and
supports an area of 8,000 square meters, but a broadcast range depends entirely upon office
environment. Where the absence of any obstruction provides perfect line of sight conditions
between the base station and wireless terminal user. If there is no atmospheric disturbance the
range may increase to 200 meters.
The following base station broadcast ranges can be used as a rough guide to plan the base
station positions:
•
In line of sight, the base station has a range of up to 200m(open area).
•
In hall, the base station has a range of 40-70m.
•
In buildings, the base station has a range of about 25-40m. It assumes that walls are made of
light brick, plasterboard or wallboard with metal frames. Normal electrical wiring, central heating
pipes, office furniture and desktop computer equipment have no significant effect.
Figure 5.4.1 Base Station Service Area
The characteristic antenna field pattern is a torus(doughnut) centered on the antenna.
3.
Base Station Location on the Plan Drawing
Determine the location of the base station on the plan drawing according to the previous
information based on the base station broadcast range.
Once you have completed the steps described in Site Survey on sub-clause A and determined
the number of base stations you need, you should determine where to install the base stations for
optimum coverage and operation of the ARIA-130 WOTS.
C. Traffic Guidelines
Each base station supports five simultaneous calls, but because all users are not simultaneously in call
statistically, a base station can support a greater number of wireless terminal users in practice.
r = Typical office environment : up tp 50 meters
r = Line of sight : up to 200 meters
Base Station
r
