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RNS 510 Radio/Navigation System
Further CAN signals for communication
The radio/navigation system uses a large number of messages and being a display control unit which is
incorporated into the CAN data bus this has numerous control functions.
For example, it receives the following information via the CAN data bus protocol:
Onboard supply control unit Dim signal, terminal status, reversing light
Data bus diagnostic interface Time, date, target component list, speed signal (Gala), pulse signal
(navigation), transport mode, vehicle platform info
Control unit with display in dash panel insert Convenience code, display language
Telephone and telematics control unit Telephone message
(mute request)
Multifunction steering wheel control unit Control via the multifunction steering wheel
Reversing camera system control unit Reversing camera display
TV tuner TV display
RNS 510 aerial concept
The aerial system has two rear windscreen aerials
and a roof aerial if we take the Tiguan as an example.
AM and FM reception as well as the signals for the
navigation system (GPS) and the telephone (GSM) are
received via the roof aerial. An aerial structure in the
rear windscreen of the Tiguan is used to connect the
second FM tuner. An FM impedance transformer is
required for this connection. Furthermore the rear
windscreen heating circuit needs to be decoupled
from the onboard supply signals with two FM
blocking circuits.
S397_119
Roof aerial
FM blocking circuit FM blocking
circuit
Rear windscreen heating
voltage supply
AM/
FM1/
FM impedance
transformer
FM2
GPS
Tel
GSM
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