Pinouts

Updated on Mar 4, 2026

Lemo Socket Connections #

Connector 1 - CAN/ POWER IN (Lemo 5 PIN) #

PIN	I/O	Function
1	I/O	Direct connection to Connector 2 pin 1
2	I/O	Direct connection to Connector 2 pin 2
3	I/O	CAN High
4	I/O	CAN Low
5	O	+12 V Power
Chassis		Ground

Connector 2 - CAN/ POWER OUT (Lemo 5 PIN) #

PIN	I/O	Function
1	I/O	Direct connection to Connector 1 pin 1
2	I/O	Direct connection to Connector 1 pin 2
3	I/O	CAN High
4	I/O	CAN Low
5	O	+12 V Power
Chassis		Ground

Connector 3 - RS232 Serial(Lemo 5 PIN) #

PIN	I/O	Function
1	O	TxD, Serial Data Transmit
2	I	RxD, Serial Data Receive
3	-	NC
4	-	NC
5	O	+12 V Power
Chassis		Ground

Connector 4 - Vehicle CAN Bus (Lemo 5 PIN) #

PIN	I/O	Function
1	-	NC
2	-	NC
3	I/O	CAN High
4	I/O	CAN Low
5	I	+12 V Power
Chassis		Ground