User's Manual

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TRACGV55VCUM001 - 14 - 
GV55VC User manual
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FM radio. 
IGN signal can be configured to start transmitting information to backend server when
ignition is on; and enter power saving mode when ignition is off.
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3.5. Digital Inputs
There are one general purpose digital inputs on GV55VC. They are all negative trigger. 
Table 7. Electrical Characteristics of the digital inputs
Logical State  Electrical Characteristics
Active  0V to 0.8V
Inactive  Open
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The following diagram shows the recommended connection of a digital input. 
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Figure 7. Typical Digital Input Connection 
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3.6. Digital Outputs
There are two digital outputs on GV55VC. All are of open drain type and the maximum
drain current is 150mA. Each output has the built-in over current and recovery PTC fuse
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