The ISO 11898−2 bus consists of the CAN_H (high) and CAN_L (low) data lines and a common ground signal. A 120 termination resistor is located at each end of the bus to minimize reflections and ringing on the waveforms
The diameter of wires is measured by a standard reference number referred to as the American Wire Gauge (AWG). Figure 4-4 lists some gauge values and the equivalent diameter. From the diameter and assuming copper wire, we can estimate the resistance per length. For example, 22-gauge wire, typical in many personal computer boxes, has a […]