Furuno br-2000 Manuale Di Servizio

Alarms are arranged in groups, in order to reduce the quantity of information presented to the operator.   
Such alarm groups can be e.g. fire, watertight doors, and bilge water etc alarms.    Group alarm can be 
assigned to any priority. 
 
The following alarms are not to be grouped: 

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Emergency alarms 

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Alarms associated with faults requiring speed or power reduction or the automatic shutdown of 
propulsion machinery 

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Steering gear alarms 

There is a common rule for understanding when there is a need for more detailed information of 
individual alarm from the external system.    That is that when the situation may lead to a danger for the 
ship or human life, reduction of speed or maneuverability, more information of alarm is to be available. 

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Event alarm is an alarm, which is normally used only to alert operator, but does not require any 
alarm acknowledgement. 

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This type of alarm may activate sound alarm in the external system, or may be only a visual 
alarm indication. 

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Alarm indication in the external system will disappear by itself. 

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AMS has the option (programmed inside AMS) to release the alarm buzzer in AMS. 

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State alarm is an alarm, which normally requires operator’s acknowledgement. 

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Sound alarm is normally released in the external equipment. 

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Sound alarm of external equipment can be acknowledged at AMS provided there is a two-way 
alarm acknowledge handshake between external system and AMS. 

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AMS will release the alarm and transmits acknowledgement of this alarm, if acknowledged in 
AMS. 

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External system should remove local sound alarm. 

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Acknowledge from AMS should not remove the state of the alarm in the external system, as long 
the alarm condition persists. 

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AMS will display pending alarm as long as the alarm condition persists in external system.