Diver Signalling System

The Diver Signalling System (DSS-II) provides a simple and robust way of communication between the personel inside the submarine and the divers in the water.

The DSS-II consists of up to four Diver Panels (DP) for outboard placement and one Main Unit (MU) for inboard placement.

All five units have four pushbuttons and four indicator lights marked 1, 2, 3 and 4. To create a message, any combination of the four indicator lights can be lit by pressing the respective pushbuttons. The same indicator lights are then lit on all five panels. If a pushbutton is pressed and held longer than three seconds, all indicator lights are turned off, and after that a new message can be created. The indicator lights can also be turned off by a separate pushbutton on the MU.

The DSS-II can work with one up to four DPs connected to the MU. Connection is done by means of plugs. If any of the DPs is not connected it must be substituted with a blind plug to prevent seawater penetrating the connector.

Except for the above mentioned four indicator lights and four pushbuttons, the MU and each DP are fitted with an indicator light for power indication and a pushbutton for lamp test.

The MU has also got a power switch, power indications for each DP, a pushbutton for reset of the indicator lights and an instrument for earth fault monitoring with a selector switch.