TT-3000E mini-C GMDSS User Manual - Polaris-as.dk

TT-3000E mini-C GMDSS User Manual
4 THE DISTRESS ALERT INSTALLATION
As explained in sections 3.3 the TT-3000E system is capable
of sending maritime distress alerts using the AP5042 Alarm
Panel [5]. For distress alerting this panel includes a distress
button with a red light inside and a buzzer.
4.1 SENDING DISTRESS
In the normal operational state the alarm button light is off
and the buzzer is silent.
An alert is initiated simply by pressing the distress button
for more than 5 seconds. During these 5 seconds the button
light will flash and the buzzer will beep. After 5 seconds
the red light goes steady on and the buzzer will be silent.
The distress signal is now being sent.
After a little while (typically around half a minute as a
rough average) a confirmation is received by the transceiver
and the red light will show this by being on with a short
off-period every 15 seconds. If the alert is not delivered
(e.g., due to bad satellite signal conditions) the button light
will turn off.
At any time it is possible to cancel a Distress Alert using
“Abort transmission” from the Options menu. Be aware that
a Distress Alert is usually sent within 10-30 seconds.
To reset the button light to the normal off-state use the
following procedure:
1. Select “Clear distress indication” from the Distress
menu on the TT-3606E Message Terminal.
The system can be tried out in Distress Test mode where all
indications work like in ‘normal’ operation but no alerts
will be sent (the system will behave like the alert is
30