Quote:
Originally Posted by efunroom
Agree. But for 1, I only used CAN-H and CAN-L. It works well.
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You should use all three to guarantee your reference and avoid issues associated with ground potential differences. You can get away with using just the two but you risk introducing a host of problems. Ive seen some industrial applications make this mistake. The best case scenarios resulted in a few bus errors. The worst case scenarios resulted in blown transceivers.