The NTCF22 is a professional INFI-Net optic-to-electric termination unit developed by ABB for industrial DCS communication systems. This high-performance communication module realizes mutual conversion and stable transmission between optical fiber signals and electrical signals, effectively solving industrial communication problems such as electromagnetic interference, long-distance signal attenuation, and data packet loss. Adopting industrial-grade fiber transmission technology, it features ultra-low signal distortion and high anti-interference capability, supporting long-distance stable data interaction for distributed control systems. With compact structural design and reliable circuit protection, it adapts to continuous operation in standard industrial environments. It is a core communication accessory for ABB DCS systems, widely applied in power, chemical, and oil and gas industries to provide reliable network conversion and signal termination solutions for system integrators and maintenance teams.