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3 Site Planning
CS Coverage Area
The example below shows the size of the coverage area of 1 CS if it is installed in an area with no obstacles.
Note
Radio signal strength levels are measured during the site survey (refer to "5 Site Survey").
Radio Signal Strength Levels
Level: 11 to 12
Level: 08 to 10
Level: 03 to 07
Level: 01 to 02
Level: 00
Site Survey Preparation
1.
Obtain a map and investigate the installation site.
a.
Check the obstacles (e.g., shelves, columns, and partitions).
b.
Check the materials of the structures (e.g., metal, concrete, and plywood).
c.
Check the layout and dimensions of the room, corridor, etc.
d.
Write down the above information on the map.
2.
Examine the service area required by the user on the map, referring to the following example.
a.
Draw the coverage area around a CS. Extend the coverage area 20 m to 50 m (65 ft to 164 ft) in each
direction, depending on the materials of the building structures and obstacles in the installation site.
Note that a CS cannot be installed outside a building.
14
Quick Installation Guide
A
B
Gray Zone:
Conversation will be
intermittent
Better
Good
May receive noise
Receives noise easily or disconnects
Out of range
A
Coverage Area
Radio signal strength level is
greater than "3".
(About 35 m to 50 m
[115 ft to 164 ft])
B
Good Coverage Area
Radio signal strength
level is greater than "8".
(About 20 m to 30 m
[65 ft to 98 ft])
Good sound quality
can be maintained.
C
Out of Service:
Cannot make/receive calls
Document Version 2009-12
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