This cable is used to link two FOCBOX's together.
To use, plug into your two FOCBOX's (only port with 4 pins).
Then on the master FOCBOX, under mode, select ppm (or ppm+uart if using bluetooth module) and set id to 0, and under the ppm tab, select Multiple VESCs over CAN.
Then on the slave FOCBOX, under the mode, select no app, set id to 1, and select Send Status over CAN with the default frequency value.
Now you master should control your FOCBOX.
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