23
Installation
4.9.4 D+ and solar connection (only
for AES models)
D+ signal connection
In >
Automatic Mode
< the
AES
electronic
system automatically selects the most efficient
energy supply. In automatic mode the electro-
nic system uses the
D+ signal
() of
the alternator to detect
12V DC
. 12V DC ope-
ration is selected only while the engine is run-
ning in order to prevent battery discharge.
S+ signal connection:
12V DC energy can be optionally achieved by
mounting solar equipment to the vehicle. The
solar power equipment must be provided with
a solar charging controller with
AES output
(adequate charging controllers available in
selected stores). The "S+ connection (Solar +)
must be connected to the respective terminal
of the solar charging controller (
AES output
).
The electronic system uses the
S+ signal
of
the solar charging controller to detect
solar
12V DC
.
Cable cross-sectional areas:
There are no particularly high current flows via
the D+ and S+ connection; therefore no parti-
cularly large cross-section is required for these
connections (approx. 1mm² is sufficient).
289 0318-40_EN_RMDT85xx-Installation_N1.qxp 02.07.2012 10:00 Seite 23
