Technical data

GB Sound module USM-RC
10 BEIER-Electronic 28.07.2008
Installation of the sound module
In order to fix the sound module in the model, 2 mounted holes with Ø 2,1mm are
available. Pay attention that no components or conducting paths of the board touch
any metal parts during the installation of the module! This can induce to short-circuits
which can destroy the sound module and connected devices.
Connection of the sound module
The connection of the supply voltage, the connection of the loudspeaker and the
connection of the outputs are always identical, independent whether you would like to
use the module in the digital or analogous operation.
The remaining wiring is dependent in which operating mode you want to use the
module.
Always switch off power before connecting the module!
The terminal X1 is a spring cage terminal which allows a fast and simple connection
of the sound module. To put a wire in or out, you simply push in from above, with a
small screwdriver, onto the actuating lever of the terminal. The wires should be
approximately 7-8mm stripped and before connecting ideally be tin-plated.
Connection of the supply voltage (battery):
The sound module is designed for a DC voltage of 5V to 14V. You connect the
positive pole to terminal X1/4 and to terminal X1/5 the negative pole of the supply
voltage. If the supply voltage is connected correctly, the green LED light.
We recommend switching also a fuse (3,15A) into power line, so if you have a wrong
wiring or a defect, you don’t get any greater damages at your model and the sound
module.
As an option you can connect a switch into the power supply of the sound module to
make it powerless. There is especially an advantage with battery used models, if you
don’t want to have a permanently sound.
Connection of the loudspeaker:
The positive pole of the loudspeaker is connected into the terminal X1/1 the negative
pole is connected into the terminal X1/2.