Fastrack M1306B User Guide 
 
Using the M1306B Wireless CPU
®
 
M1306B 
 
Figure 11: Recommended power supply connection on trucks 
Figure 11 gives the recommended power supply connection where the ground 
connection of the M1306B is not directly connected to the battery but is connected 
after the Circuit Breaker (on the truck ground or the fuse box). 
5.2.2 Technical Constraints on Trucks 
It is highly not recommended to connect directly the power supply on the battery 
rather than on the circuit breaker. The Fastrack M1306B may be damaged when 
starting the truck if the circuit breaker is switched OFF (in this case, the truck ground 
and the battery ground will be connected through the M1306B as shown in the 
figure below). 
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WM_PRJ_M13_UGD_001 -003  November 11, 2006