
Power line carrier technology utilizes existing power line infrastructure to achieve high-speed data transmission, providing an efficient solution for communication in the Industrial Internet of Things (IIoT) and smart grids. To address the severe harmonic interference and transient surges on power lines, our high-performance broadband coupling and bidirectional overvoltage protection technologies effectively isolate high-voltage noise and absorb surge impacts. These protection solutions ensure the integrity and interference resistance of carrier signals in complex electrical environments, enabling systems to achieve long-distance, highly reliable digital interconnection without the need for additional wiring.