User's Manual

GV57(N) User Manual
TRACGV57UM001 - 12 -
3.7 Ignition Detection
Table 2: Electrical Characteristics of Ignition Detection
Logical Status
Electrical Characteristics
Active
5.0V to 32V
Inactive
0V to 3V or open
IGN (White) is used for ignition detection.
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 for the device to start transmitting information to the backend
server when the ignition is on, and enter the power saving mode when the ignition is off.
3.8 Digital Input
There is one general purpose digital input on GV57. It is a negative trigger.
Logical Status
Electrical Characteristics
Active 0V to 0.8V
Inactive Open
Table 3: Electrical Characteristics of Digital Input
3.9 Digital Output
OUT (Brown) is a digital output on GV57(N). It is of open drain type and the maximum drain
current is 150mA.
Figure 10. Internal Driver Circuit for Digital Output
Index
Description
Remark