Technical data

D Sound module USM-RC-2
01.03.2012 BEIER-Electronic 19
Connection of the switching-inputs
You can use the switching-inputs at the terminals X1/4 – X1/7 to trigger 4 different
functions (see page 30).
All switching-inputs of the sound module are negative switched. To trigger a function,
you have to connect the negative pole of the power supply to the corresponding
input. Generally switching units (such as our OKA-4, RC-SM-2 or other standard
multi-switch-modules) are used for this purpose. These modules are normally
negative switched, that’s why only the output of the switching module must be
connected to the input of the sound module.
Terminal X1/3 is the switching-input, to turn on and off the engine sound. For
activation, the negative pole (e.g. by a switch module or switch) must be connected
to this input.
In digital mode you can also switch the engine sound with a proportional channel, a
switch in nautic-mode, or with the EKMFA-Mode. The switching-input X1/3 does not
need to be connected here.
As long as the engine sound is switched off, the sound module doesn’t play any
driving sound or engine sound!
Therefore the engine sound has to be switched on by a way available to you!