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Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCOGENER reserves the right to make any modifications.
Dct_427_02
5.2 Specific recommendations for use of the modem in vehicles
The power supply connector of the modem GenLoc 54e must
NEVER
be connected directly
to the battery of the vehicle.
5.2.1
Recommended connection on the battery of a truck
All trucks have a circuit breaker outside the cabin. The circuit breaker is used for security reasons: for
example, if a fire breaks out in the electric box of the truck, the driver can cut off the power source and avoid
more damage (explosion).
The circuit breaker is connected to the ground of the truck, usually connected to the fuse box.
Most of truck circuit breakers do not cut the PLUS of the battery, but cut its ground.
Figure 16 : Recommended connection on the battery of a truck
The scheme above shows a recommended power connection where the connection of the modem ground is
not directly connected to the battery, but connected after the circuit breaker (on the ground of the truck or in
the fuse box).
