GV75 User Manual
TRACGV75UM0018
2.3. Interface Definition
There are 8 wires on GV75user cable, which contains the connection for power, ignition input,
digital input, digital output, TXD and RXD, etc. The user cable’s definition is shown in the following
table.
Table 4: Description of GV75 User Cable
Index Colour Description Comment
1 Red Power External DC power input,8-32V
2 Black Ground System ground(connected to the vehicle’s frame directly)
3 Yellow Digital input Digital input, negative trigger
4 White Ignition Ignition input, positive trigger
5 Green Digital output2 Digital output,low side 150mA max
6 Blue Digital output1 Digital output,low side 150mA max with latch
7 Violet TXD
8 Grey RXD
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