25. ALERT MANAGEMENT SYSTEM (option)
25-13
25.14 Backup Configuration
The FURUNO AMS supports backup configuration. The following configuration is pos-
sible.
Master AMS: 1 set Backup AMS: 4 sets
Alert information is controlled by the Master AMS. The Master AMS distributes alert
information to Backup AMS via the network to share alerts among all AMS.
If the Master AMS fails, the Backup AMS having the highest priority (set at installation)
among Backup AMS takes over as the Master AMS and distributes alert information
to all Backup AMS.
After the Master AMS is restored to working order and all alert information is updated
and synched, the original Master AMS again becomes the Master AMS.
Synchronize alert status information
CAM
Main
CAM
Backup
No.1
CAM
Backup
No.2
CAM
Backup
No.3
CAM
Backup
No.4
CAM
Main
CAM
Backup
No.1
CAM
Backup
No.2
CAM
Backup
No.3
CAM
Backup
No.4
Master CAM fails Failure of Master CAM detected
Synchronize alert status information
CAM
Original
Main
CAM
Master
Backup No.1
CAM
Backup
No.2
CAM
Backup
No.3
CAM
Backup
No.4
Return to normal Change to master