Site Planning - Panasonic KX-UDS124 Installation Manual

4.2 Site Planning

In order to be able to move between coverage areas during a call (Handover), synchronisation between
SIP-CSs is necessary. If synchronisation between SIP-CSs has not been configured, handover will fail. The
source of synchronisation is called a Master CS and the target of synchronisation is called a Slave CS. An Air
Synchronisation Group is created with the Master/Slave CSs on different levels. The source of synchronisation
for each SIP-CS in an Air Synchronisation Group is called an Air Synchronisation Master CS.
The number of Master/Slave levels in an Air Synchronisation Group cannot exceed 8. To ensure that the
number of levels does not exceed 8, locate the Air Synchronisation Master CS in the centre of the group. A
greater number of levels can lead to instability in handover and Air Synchronisation.
The Master CS of Air Synchronisation Group 1 is called the Super Master CS and controls the whole system.
Good Example:
The Master CS is located in the centre of the installation site for each Air Sync Group.
1 2
Number of Master/Slave level: 5
Bad Example:
The Master CS is NOT located in the centre of the installation site for each Air Sync Group. Therefore, the
number of layers in the hierarchy exceeds 8.
1 2
Number of Master/Slave level: 10
Notice
•
Choosing the best site for the SIP-CS requires careful planning and testing. The best location may not
always be convenient for installation.
•
It is necessary to locate SIP-CSs within synchronisation range of other SIP-CSs, however, locating
SIP-CSs too close to each other can lead to interference and a reduction in the number of simultaneous
calls. In a regular office, the average distance between SIP-CSs should be approximately 30 m.
3 4 5
3 4 5
6 7 8
6 7 8
4 Deployment Procedure
9 10
9 10
Installation Guide 27