Controller Area Network...
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TECHNOLOGY
Networking
Controller Area Network (CAN) Bus
How a car’s wiring nightmare sparked a communication revolution across industries
6 Feb 2026
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What mechanism allows the CAN bus to manage simultaneous data transmissions from multiple devices?
All devices transmit simultaneously without any priority system, causing data collisions.
Arbitration prioritizes messages so the highest priority device transmits first while others back off.
The CAN bus uses separate physical wires for each device to avoid transmission conflicts.
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