Panasonic KX-NCP0158 Quick Installation Manual page 7

Air Synchronisation
It is necessary to establish synchronisation for stable operation and handover between IP-CSs and other CSs.
As a method of synchronisation, air synchronisation is used.
IP-CS
IP-CS
Air Synchronisation is required
CSs are classified into one of the following three classifications for implementing air synchronisation:
CS Class
Master CS1 (synchronisation
source clock)
Master CS2 (backup for
Master CS1)
Slave CS
Headquarters Headquarters
IP-CS
Switching Hub
PBX
IP-CS
Generates clock signal.
Receives clock signal from Master CS1 (can also generate
clock signal if Master CS1 malfunctions).
Receives clock signal from other CSs.
Router
IP Network
Description
Remote Office Remote Office
Router Switching Hub IP-CS
Air Synchronisation is not required
Quick Installation Guide
1 Overview
7