CAN
Controller Area Network.
CAN is a low-end networking system. Originally designed for automotive applications, CAN is fast and robust in electrically noisy environments. It utilizes differential signals and tends to work best when used over twisted-pair wire. When making long cable runs between boards, a terminating resistor at each endpoint of the cable is required to maintain the integrity of the signals. When conditions are optimal, CAN signals can travel hundreds of feet.
CAN is a low-end networking system. Originally designed for automotive applications, CAN is fast and robust in electrically noisy environments. It utilizes differential signals and tends to work best when used over twisted-pair wire. When making long cable runs between boards, a terminating resistor at each endpoint of the cable is required to maintain the integrity of the signals. When conditions are optimal, CAN signals can travel hundreds of feet.

