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Power to DTM socket

CANBus Communications Decoded

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Hello sir, can you kindly go over the reason why we need to power the DTM 4-pin socket in the construction of the resistor?

Thank you

Often you wish to attach a device to the CAN bus. The device will need power, so it's convenient to have 12V and CAN on the same connector since almost every additional CAN device will need both.

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