Panasonic KX-NCP0158 Quick Installation Manual page 19

Implementing Air Synchronization
CS Coverage Area for Air Synchronization between CSs
The example below shows the size of the area where one CS can synchronize with other CSs, 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 Using the
KX-TD7685/KX-TD7695/KX-TD7696").
Radio Signal Strength Levels
Level: 12
Level: 09 to 11
Level: 08
Level: 07
Level: 03 to 06
Level: 00 to 02
Document Version 2009-12
A
B
C
Gray Zone:
Conversation will be
intermittent
Up to 2 CSs: Good
More than 2 CSs: May be reset due to synchronization failure of CSs
Good
Better
Good
Air synchronization is established. However, it is necessary to monitor
the status of synchronization using the Maintenance Console.
This is necessary because IP-CSs may be reset due to synchronization
failure if the radio signal strength fluctuates depending on changes in
the installation environment such as opening/closing doors.
May be reset due to synchronization failure of CSs
A
Coverage Area
Radio signal strength level is
between "03" (about 40 m to 50 m
[131 ft to 164 ft]) and "11" (about
15 m to 20 m [49 ft to 65 ft]).
B
Good Coverage Area
Radio signal strength level is
between "07" (about 30 m to 40 m
[98 ft to 131 ft]) and "11" (about
15 m to 20 m [49 ft to 65 ft]).
Good synchronization quality
can be maintained.
C
Out of Service:
0 m to 3 m (0 ft to 10 ft) or the radio
signal strength level is "00 to 02".
Cannot be synchronized.
C
3 Site Planning
Quick Installation Guide 19