The OBD & INST Connector is a Male 25-pin Standard D Type Connector nut.
Pin No
Pin Function
Pin 1
Analog Input 3 - do not apply voltages outside of the -10 to +10V range
Pin 2
NC
Pin 3
NC
Pin 4
Analog Input 1 - do not apply voltages outside of the -10 to +10V range
Pin 5
Wake-Up pin to wake logger from sleep mode (for use, see Appendix 1)
Pin 6
CAN Bus 1 (Medium Speed Bus) Low Signal
Pin 7
CAN Bus 0 (High-Speed Bus) Low Signal
Pin 8
K-Line (1 wire bus) of ISO 9141
Pin 9
4.5-36V Supply Voltage
Pin 10
+4.5V Instrumentation Supply Voltage, ensure that the current drawn is not more than 100mA
Pin 11
Digital Input or Output 2 - Do not apply voltages outside of the 0 to +12V range when used as an input. When used as an Output, ensure that the current drawn is not more than 100mA.
More information on the use of this pin can be found in Appendix 2 and 3
Pin 12
Digital Input or Output 0 - Do not apply voltages outside the 0 to +12V range when used as an input. When used as an Output, ensure that the current draw is not more than 100mA.
More information on the use of this pin can be found in Appendix 2 and 3
Pin 13
NC
Pin 14
Analog Input 2 - do not apply voltages outside of the -10 to +10V range
Pin 15
NC
Pin 16
NC
Pin 17
Analog Input 0 - do not apply voltages outside of the -10 to +10V range
Pin 18
Analog Ground
Pin 19
CAN Bus 1 (Medium Speed Bus) High Signal
Pin 20
CAN Bus 0 (High-Speed Bus) High Signal
Pin 21
Ground
Pin 22
Power Ground
Pin 23
Digital Input or Output 3 (can also be used as a switched power supply +Vd). When used as an input, do not apply voltages outside of the 0 to +12V range
Pin 24
Digital Input or Output 1 - Do not apply voltages outside of the 0 to +12V range when used as an input. When used as an Output, ensure that the current drawn is not more than 100mA.
More information on the use of this pin can be found in Appendix 2 and 3
Pin 25
NC