GV55NUsermanual 
TRACGV55NUM001 ‐15‐
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. 
There are one general purpose digital inputs on GV55N. They are all negative trigger. 
Table 7.  Electrical Characteristics of the digital inputs 
Logical State  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 
 
 
There are two digital outputs on GV55N. 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 
3.8. DigitalInputs
3.9. DigitalOutputs