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2. RADAR, CHART RADAR OPERATION
2-50
2.34 Alert Box, Alert List
2.34.1 Alert box
When an alert condition is found, the applicable alert message and alert ID appear in
the [Alert] box. For the alarm- and warning-type alerts a buzzer sounds. The [Alert] box
is composed of the four items shown in the figure below. See chapter 20 for details.
2.34.2 Alert list
The [Alert List] displays the status of the latest 900 system alerts, in order of genera-
tion, latest to the earliest. To display the list, click the Alert list/log icon in the [Alert]
box. The Alert list/log icon is light-blue when the list is displayed. A maximum of nine
alerts are shown per page. Unacknowledged alerts are displayed in flashing red
(alarm) or flashing yellow-orange (warning). The ZDA sentence is required to display
time in the list.
How to find details about an alert
Click the status icon in the list to show details about an
alert.
Alert list item Description
CLOSE
("BACK" shown when
there are two or more
pages)
• Click to close list. (Press ← on the Control Unit
to close list.)
• Switch to preceding page in multiple page dis-
plays.
NEXT
(Not shown when only
one page exists)
• The name of the alert not acknowledged or not
rectified.
• A maximum of nine alerts are displayed per
page.
• The list can be closed with the Close button (X).
• An alert can be acknowledged and rectified
from the list.
Control Unit: Press appropriate numeric key.
Trackball module: Click alarm name.
Alert message
(Alert ID and alert name)
Alert list/log icon
(Click to display.)
Buzzer stop
icon (Click to
stop buzzer
temporarily.)
A
lert state
icon
Alert Number : 255
Source: No. 2 Chart Radar
Description: Gyro 1 COM Error
Detail : Gyro 1 COM Error