NT-2000 REF Manual
List of Alarms
10-1
10. List of Alarms
10.1. Message Alarms
● Alarm for D–Type Message
・ Enabled/ Disabled Status: Enabled at all times.
・ Triggering Condition: To be triggered upon reception of a D–type message.
・ User Interface:
- Audible: Beeping at approx. 1–sec. intervals by alarm buzzer.
- Visual: Attaching iALARM!i tag to message ID and
displaying both message ID and text in red.
● Alarm for A–, B–, and L–Type Messages
・ Enabled/Disabled Status: Initially disabled, and can be individually enabled by
the user. See paragraph 4.13 for instructions.
・ Triggering Condition: To be triggered upon reception of an A–, B– or L–type
message.
・ User Interface:
- Audible: Beeping at approx. 3–sec. intervals by alarm buzzer.
- Visual: Attaching iALARM!i tag to message ID and
displaying message ID in red.
10.2. Operational Alarms
● Storage Limit Alarm:
・ Enabled/Disabled Status: Enabled at all times.
・ Triggering Condition: To be triggered when protecting NAVTEX messages
for permanent storage in excess of 50.
・ User Interface:
- Audible: Beeping 3 times in quick succession by small buzzer.
- Visual: Displaying warning “
STORAGE LIMIT IS REACHED !”
in prompt line at screen’s bottom.
● Memory–Full Alarm:
・ Enabled/Disabled Status: Enabled at all times.
・ Triggering Condition: To be triggered when receiving new NAVTEX
message with 199 messages stored.
・ User Interface:
- Audible: Beeping 3 times in quick succession by small buzzer.
- Visual: Displaying warning “ MEMORY FULL! [ CLR ] TO
ACKNLG.” in prompt line at screen’s bottom.
● Invalid Keypress Alarm:
・ Enabled/Disabled Status: Enabled at all times.
・ Triggering Condition: To be triggered when any key not valid for current
operation is pressed.
・ User Interface:
- Audible: Beeping 3 times in quick succession by small buzzer.
- Visual: Displaying warning “
INVALID KEYPRESS,” blinking.