User's Manual

TRACGV300VCUM001 - 16 -
GV300VC User Manual
Figure 9. Typical Ignition Detection
IGN (Pin3) is used for ignition detection. It is strongly recommended to connect this pin to ignition
key “RUN” position as shown above.
An alternative to connecting to the ignition switch is to find a non-permanent power source that is
only available when the vehicle is running, for example, the power source for the FM radio. IGN
signal can be configured to start transmitting information to the backend server when ignition is on,
and enter the power saving mode when ignition is off.
There are three general purpose digital inputs on GV300VC. They are all negative trigger.
3.8 Digital Inputs
Tabl e 8. Electrical Characteristics of the Digital Inputs
Logical status Electrical characteristics
Active 0V to 0.8V
Inactive Open
The following diagram shows the recommended connection of a digital input.
 Figure 10. Typical Digital Input Connection