25. ALERT MANAGEMENT SYSTEM (option)
25-11
25.12 Aggregated Alert
MSC302(87) requires the use of the “aggregated alert,” which groups multiple similar
alerts.
The illustration below shows the grouping possible with the FURUNO AMS. Grouped
alerts can be collectively temporarily silenced.
Grouping of similar alerts with a single sensor
Grouping of similar alerts with multiple sensors
Grouping is done when the equipment is installed, and has these limitations.
• Grouped alerts cannot be collectively acknowledged.
Each alert must be individually acknowledged.
• The alerts must all have the same alert priority and alert category.
Alerts having different alert priority and alert category cannot be grouped.
Sensor
A
AMS
Alert ID: 100
Alert Priority: Warning
Alert Category B
Instance: 1
Aggregated Alert
Source: Sensor A
Alert ID: 100
Alert Priority: Warning
Alert Category B
Instance: 1 and 2
Alert ID: 100
Alert Priority: Warning
Alert Category B
Instance: 2
Sensor
A
AMS
Protocol: ALF
Alert ID: 100
Alert Priority: Warning
Alert Category B
Instance: 1
Protocol: Digital content
Sensor
B
Protocol: ALR
Alert ID: 200
Aggregated Alert
Source: Sensor A
Alert ID: 100
Alert Priority: Warning
Alert Category B
Instance: 1
Source: Sensor B
Alert ID: 200
Alert Priority: Warning*
Alert Category B*
Source: Sensor C
Alert ID: 400*
Alert Priority: Warning*
Alert Category B*
* Alert ID, Priority and
Category are complimented
based on alert definition.
Sensor
C