What is the difference between the special cable and the control cable of the factory communication line?
The control cable mostly transfers the switching speed and the low speed analog signal, satisfies Ohm's law is the main premise, and does not have the two parameter request, the relative communication cable, the conductor is relatively thick, the structure is also simple.
The communication line carries very little current, and the conductor is thinner. Communication cables not only have voltage, current and resistance parameter requirements, but also have characteristic impedance, attenuation and other two parameter requirements. Therefore, the accuracy of the cable is higher.
Special cables for factory communication lines are used to transmit two-way signals, while control cables are used to transmit one-way signals (feedback circuitry is still considered a control circuit).