microphone input (e.g. CAD12, CR24 or
MR12).
The microphone connected to input E1 is given
priority. Generally, this microphone is used for
the driver, and the second microphone (E2) is
used for the tour guide.
The operating voltage of the microphone
priority switch is +12/24 volts.
Disposal of old appliances
Please do not dispose of your old appliance in
the household refuse.
To dispose of the old appliance, please use the
available waste return and recycling systems.
Installation notes
Installation only by
qualified personnel
The installation of the device must
only be performed by trained
specialists.
These installation instructions are
only intended to be used by specia-
lists.
Installation location
f
Only mount the microphone
priority switch on a flat, rigid
surface that provides sufficient
stability.
Installing the microphone
priority switch on an unsuitable
surface may damage the unit or
cause it to function unreliably.
Robert Bosch Car Multimedia GmbH
When drilling holes, make sure
f
no vehicle components are
damaged.
Risk of fire
When performing the installation,
make sure the cables do not come
into contact with sharp edges.
After installation, fix the connecting
cables in such a way that ensures no
forces act on the connectors.
Damaged cables/connectors may
lead to a short circuit and cause a
fire.
Note
Please also observe the installation
notes at the end of this manual
(Chapter "Installation notes").
f
The fitter is responsible for compliance
with the legal requirements.
7 620 230 022 | 01.2020
en | 5