Technical data

GB Sound module USM-RC
28.07.2008 BEIER-Electronic 15
Connection of the sound operation in analogue mode
Connection of the motors
In the analogous operation, the driving speed is determined by the motor voltage. 1
or 2 DC motors can be connected to the terminals X1/7 / X1/8 and X1/9 / X1/10. The
connection to the sound module occurs parallel to the existing connections of the
speed controllers which powers the motors.
To the polarity of the motor connections, attention must be paid only if you want to
use the output for the reverse driving light. If the reverse driving light shines at the
forward drive, the connections must simply be changed.
If only 1 motor is connected, the terminals X1/9 and X1/10 can be used as switching-
inputs, with which 2 more additional sounds and the indicators can be activated.
Connection of the switching-inputs
At the connectors X2/1 - X2/4, the additional sounds 13-16 can be triggered. The
input pin is the left pin (direction board middle). The other two pins do not have any
functions.
To activate a sound, the negative pole of the supply voltage must be switched to the
respective input. Normally switch modules are used for this (as our RC-SM-2 or other
standard multi-switch-modules). Because these switch modules are all negativ-
switched, only the outputs of the switch module must be connected to the inputs of
the sound module.
Terminal X1/6 is the switching-input, with which the driving sound is turned on and
off. For switching, simply the negative pole (e.g. by a switch module or switch) must
be connected to this input.
If this switching-input is not connected, the driving sounds will be always switched off!