What is the principle of pre-terminated cable?

　　Pre-terminated fiber optic cable refers to a way of connecting the fiber optic cable with other devices during fiber optic tranSMission. Its principle mainly involves the reception, demodulation, processing of electrical signals, and transmission of electrical signals. The following is a detailed explanation of the principle of pre-terminated fiber optic cable:

　　First, the reception of optical signals

　　The pre-terminated cable first needs to receive the optical signal from the optical cable. These optical signals are transmitted by the light pulses in the optical fiber. At the receiving end, in order to convert the optical signal into an electrical signal, the pre-terminated cable uses a photoelectric converter. A photoelectric converter is a device that can convert an optical signal into an electrical signal. It uses the principle of photoelectric effect to convert the light energy in the optical signal into electrical energy, thereby generating the corresponding electrical signal.

　　Second, the demodulation of optical signals

　　Demodulation of an optical signal is the process of restoring an electrical signal to its original. In a pre-terminated fiber optic cable, the demodulator receives the electrical signal from a photoelectric converter and decodes it to restore the content of the original signal. This process is to ensure the accuracy and completeness of the transmission. The demodulator works by identifying a specific pattern or encoding in the electrical signal and converting it into a corresponding digital or analog signal.

　　III. Processing of electrical signals

　　The processing of electrical signals is to convert the original signal into a form that can be recognized and processed by other devices. In the pre-terminated optical cable, the processor will process the electrical signal accordingly according to the type and needs of the signal. For example, the signal is amplified, filtered or encoded to meet the requirements of other devices. The working principle of the processor is to use the electronic circuit to perform various operations and processing on the electrical signal, so as to realize the functions of amplifying, filtering and encoding the signal.

　　IV. Transmission of electrical signals

　　The transmission of electrical signals is the process of connecting the processed signal to other devices through a suitable interface. In pre-terminated fiber optic cables, transmission lines transmit electrical signals to target devices to enable communication between devices. Transmission lines usually use cables or wireless channels to complete the transmission of signals. During transmission, it is necessary to ensure the stability and integrity of the signal to avoid signal loss or distortion.

　　To sum up, the principle of pre-terminated optical cable is to convert the optical signal in the optical cable into an electrical signal through photoelectric conversion, demodulation, processing and transmission steps, and connect it to other devices for communication. This way can achieve high-speed, long-distance and low-interference signal transmission, which is widely used in communication, Internet and data center fields. In practical applications, pre-terminated optical cable also needs to be configured and adjusted according to specific equipment and scenarios to ensure accurate transmission of optical signals and normal communication between devices.