Automotive Ignition Power Sensing (Ign); Can Bus - Onlogic Karbon 700 Series Product Manual

2.5 - Automotive Ignition Power Sensing (IGN)

The K700 5-pin power input terminal offers automotive ignition sensing. The ignition sensing timing
for power on and off delays can be modified through OnLogic's microcontroller (MCU) using serial
commands. These commands allow setting the delay on startup after ignition is detected, the delay
until soft and hard shutdown when ignition is lost, and enabling/disabling ignition sensing. For more
information on ignition power sensing, and instructions on using these serial commands from
Windows or Linux, visit ​
The system should always be used with the supplied 5-pin terminal block. The total system power
draw and input voltage will determine whether only two of the power pins can be used. Configurations
with high wattage CPUs (65W or more), PoE ModBay cards, or GPU expansion must use all 4 power
pins. Low voltage supplies (9~12V) should also use all 4 power pins. If only two of the input pins are
used, it is recommended to use a jumper between the populated and open connection.

2.6 - CAN Bus

See Section 4 for information on how to drive the CAN bus.
O nLogic's tech support site on the Karbon series ignition sensing​
Pin
1
2
3
4
5
Pin Definition
1 GND
2 CAN L
3 CAN H
.
Definition
9~48 VDC Ignition
9~48 VDC Input
9~48 VDC Input
GND
GND