Thrane&Thrane TT-6222A VHF DSC, User Manual

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Chapter 2: Operation
22 DSC calls
Power failure while in distress
In case of a power failure or switch-off during the transmission of a Distress
the TT-6222A VHF DSC gives an audible warning after power-up and
automatically resumes sending Distress 10 seconds after power up.
Within the 10 seconds you have the following options:
• Press the soft key QUIT to terminate the active distress procedure
(acknowledged or unacknowledged).
• Press the soft key CONFIRM (or wait and do nothing) to resume the sending
Distress procedure.
Sending a Distress from the TT-6103A Multi Alarm Panel
The optional TT-6103A Multi Alarm Panel will, when connected
to the VHF radio, indicate in the TT-6103A Multi Alarm Panel
display that a Distress can be sent over VHF. To send a Distress
alert from the TT-6103A Multi Alarm Panel, do as follows:
1. Lift the cover of the Distress button marked VHF .
2. Press and hold the button until the light is steady and the buzzer stops
(more than 3 seconds).
The VHF radio is now in distress mode. Continue the distress traffic and
procedures from the VHF radio front panel, if possible, in the same way as
described for handling distress mode from the main VHF radio.
Press the MUTE button on the Alarm panel to mute the audible alarm on
incoming distress or urgency messages.
For further information see the Alarm Panel Installation and user manual.
Note
Only undesignated distress messages can be initiated from the
Alarm Panel.