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exists and is an alternate of . Making the world better, one answer at a time. If by IT you mean computer architecture, then the communication bus would be a physical path on the circuit board, that connects various components which passes electrical signals between each other. The nature of the signal is either on or off and the path is either serial or parallel in nature.
CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN. high line goes to 3.75V and the CAN low drops to 1.25V, thereby generating a 2.5V differential between. the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is. NOT sensitive to inductive spikes, electrical fields or other noise. This makes CAN bus a reliable choice. for networked communications on mobile equipment. CAN power can be supplied through CAN bus.