User's Manual

Channels

0544

7.1.13 Multiple handsets in the system

If multiple handsets are connected in the system the following priority is given (to PTT –

microphone control) if multiple handsets are lifted:

• The default handset is always given priority if lifted.

• Any optional handset lifted first takes priority over another optional handset.

A warning “OC” is written in the display near any handset (VHF unit or CU) that has lower

priority, as soon the prioritized handset is lifted.

If an optional handset is not given priority (“OC” written

in display) it will be possible to use only the following

buttons on the CU:

7.1.14 Optional handset CU VHF operation while main unit is in

menu or text entry mode

If the main VHF unit is operated in menu or text entry mode, there will be certain buttons on

the VHF main unit that do not respond to their primary functions. Seen from a CU perspec-

tive all functionality is maintained if “OC” is not shown in the telephone display.

7.2 Alarm panel

The alarm panel AP4365 will – if connected correctly to the VHF - be illuminated in the red

“VHF DISTRESS” push button.

7.2.1 Distress initiation

Only undesignated distress can be sent from the alarm panel.

The distress is sent by lifting the lid over the VHF DISTRESS button on the alarm panel and

pressing the button for 5 seconds. A sound is heard each second. After 5 seconds a

constant sound is heard, indicating that you have sent the distress. You can now release the

button. The alarm sound in the alarm panel can be muted by pressing the on the

alarm panel.

The VHF is now in distress mode. You must now continue the distress traffic and procedures

from the front panel of your VHF, if possible. The procedures are now the same as described

for handling distress mode from the main unit.Maritime channels