Installation Of The Sound Module; Connection Of The Sound Module - beier USM-RC-2 Operating Manual

D Sound module USM-RC-2

Installation of the sound module

In order to fix the sound module in the model, you can use self-adhesive Velcro,
which you can tape on the synthetic cover of the sound module. Please pay attention
that no components or conducting paths of the board touch any metal parts during
the installation of the module! This can cause short-circuits which can destroy the
sound module and connected devices.

Connection of the sound module

The connection of the supply voltage, the loudspeaker and the outputs are always
identical, independent on the used mode (digital, analogue or mix mode).
By contrast the remaining wiring is dependent on the operating mode.
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 from above onto the
actuating lever of the terminal with a small screwdriver. The wires should be
approximately 7-8mm stripped and should ideally be tin-plated prior the connection.
Connection of the supply voltage (battery):
The sound module is designed for a DC voltage from 5V to 14V. Just connect
terminal X1/1 with the positive pole and terminal X1/2 with the negative pole of the
supply voltage. Generally, the drive battery is used for supply voltage. The best thing
is to use a Y-cable, to connect the sound module and the speed controller
simultaneously to the battery.
If the supply voltage is connected correctly, the green LED at the sound module is
glowing.
We absolutely recommend putting the supplied fuse (6,3A) between the positive pole
of the battery and terminal X1/1. This action prevents damage to your model and the
sound module, if the wiring is faulty or in case of a technical failure.
As a further option you can also connect a switch into the power supply of the sound
module to switch it off. It is a method which has the advantage of less power
consumption if permanently no sound is needed. But the switching-outputs and
servo-outputs are also disabled if switched off!
If you use a separate battery for the sound module, please connect the negative
poles from both batteries together.
14 BEIER-Electronic 03.02.2014