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17.0 i50 Variants
17.1 i52 Marine
This board uses two Molex connectors to provide all power and I/O signals. The following diagram
shows the pin assignments, looking into the connectors on the PCB.
Vehicle Ignition (active high)
Negative supply (ground) (x2)
Note: All serial pins are defined with the i52 acting as a DCE. Use female DB9 connectors with pins
connected as shown above to connect a PC to the i52.
* COM1 DTR and RTS inputs should only be used for programming. For general COM1 usage, only
DB9 pins 2, 3 and 5 are required.
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