Connector 3 - POWER (Hirose 3 PIN)
PIN
I/O
Function
1
I
Power
2
-
Ground
3
-
N/C
Connector 4 - GNSS Antenna
PIN
I/O
Function
Centre
I
RF Signal/Power for active antenna
Chassis
I
Ground
https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_Sigma/VBOX_Sigma_User_Guide/07_-
_VBOX_Sigma_Technical_Properties/VBOX_Sigma_-_PIN_OUTS
40