Connector 6 - SERIAL (Lemo 5 PIN)
PIN I/O Function Range
1 O RS232 Tx (PORT A) +/- 12 V
2 I RS232 Rx (PORT A) +/- 12 V
3 I/O CAN High (PORT B)
4 I/O CAN Low (PORT B)
5 O +V Power Same as Power +
https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_3i_Range/VBOX_3i_User_Guide_(All_Variants)/15_-
_VB3i_Technical_Properties/VB3i_PIN_OUTS
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