GV75W User Manual
TRACGV75WUM001
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Figure 2: Typical Power Connection
3.4.
Ignition Detection
Table 6: Electrical Characteristics of Ignition Detection
Figure 3: Typical Ignition Detection
The white wire is used for ignition detection. It is strongly recommended to connect this wire to
ignition key at “RUN” position as shown above.
An alternative to connecting to the ignition switch is to find a non‐permanent power source (like the
power source for FM radio) that is only available when the vehicle is running. Ignition signal can be
configured to start transmitting information to the backend server when ignition is on and to enter
power saving mode when ignition is off.
3.5.
Digital Input
There is a negative trigger input on GV75W. For negative trigger input, the electrical conditions are
as follows:
Logical State
Electrical State
Active
0V to 0.8V
Inactive
1.7V to 32V or Open
Table 7: Electrical Conditions of Negative Trigger Inputs
The connection is shown as follows:
Figure 4: Connection for Negative Trigger Inputs
Logical Status
Electrical Status
Active
5.0V to 32V
Inactive
0V to 3V or open
