Telit Mobile Terminals S.p.A. SAT551 Manuel D’Utilisation

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Connecting to vehicle IO devices 
 
t     Ensure that the vehicle is switched off and that the battery terminals 
have been removed before connecting the wires.   
t     Connect the red and then the white wire 
only after all the other wires 
have been connected. 
t     Ensure that the connections have been formed tightly.  
t     Ensure that the wires do not interfere with, and that they are not 
damaged by the movement of the seats, the pedals, or the handbrake.  
 
Connect the wires in the following order: 
 
t     Connect the 
black (earth) wire to an unpainted metal surface in the 
vehicle. 
t     Connect the 
blue (stereo mute) wire to the car radio, where fitted.  
t     Connect the 
red (+12 V) wire to the vehicle battery’s positive terminal. 
Insert a 4 A retarded fuse in series with the power supply, on the 
battery side. 
t     Connect the 
white (ignition) wire to the ignition indication if the ignition 
key has an “ACC” position.  
t     Connect the microphone and speaker to the cradle. 
t     Connect the micro telephone to the cradle. 
t     Connect the cradle to the wires connecting it to the vehicle’s IO devices.