Pinouts

Updated on Mar 4, 2026

Top of VBOX Sigma

Bottom of VBOX Sigma

Connector 1 – 3G/4G Antenna #

Image missing

PIN	I/O	Function
Centre	I	RF Signal/Power for active antenna
Chassis	I	Ground

Connector 2 – SERIAL / CAN / POWER (Hirose 6 PIN) #

PIN	I/O	Function
1	I	RS232 Rx (Data in to VBOX Sigma)
2	O	RS232 Tx (Data out to VBOX Sigma)
3	-	Ground
4	O	CAN L
5	O	CAN H
6	I	V+

Connector 3 – POWER (Hirose 3 PIN) #

PIN	I/O	Function
1	I	Power
2	-	Ground
3	-	N/C

Connector 4 – GNSS Antenna #

Image missing

PIN	I/O	Function
Centre	I	RF Signal/Power for active antenna
Chassis	I	Ground