
7 TREK-668/303 User Manual
Chapter 2 System Setup
Figure 2.5 Top view of TREK-668
2.2 Installation Procedures
2.2.1 Connecting the Power Cord
Connect the three pin waterproof power cord to the DC inlet of the In-Vehicle Com-
puting Box. On the open-wire end, one pin is reserved for positive voltage and is
marked, "+"; one pin is reserved for ground and is marked, "-"; and, one pin is
reserved for the ignition signal with an "ignition" mark.
Note! Ignition on/off setting: The TREK-668 supports an ignition on/off function
so that you can power on/off the TREK-668 via the ignition signal/volt-
age and connect the TREK- vehicle ignition switch.
Table 2.1: Pin Definition of Power Cord
Pin Definition Color
1+Red
2- Black
3 Ignition Orange
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