NTCF22 ABB Fiber Optic Communication Termination Unit

The NTCF22 serves as a bi-directional optical-to-electrical and electrical-to-optical converter, specifically tailored for the INFI-Net, which is the high-speed communication network used by the INFI 90 system. It enables the control system to extend its communication reach and enhance noise immunity by leveraging the advantages of fiber optics.

Signal Conversion: It accurately converts electrical signals from the control modules into light pulses for transmission over fiber optic cables, and conversely, converts incoming light pulses back into electrical signals for the control modules. This ensures data transmission integrity over potentially long distances.Network Termination: It acts as a termination unit for the fiber optic segment of the INFI-Net, ensuring proper signal impedance and preventing reflections that could degrade communication quality. This is critical for maintaining the reliability of the entire communication network.High-Speed Support: The unit is capable of supporting the specified INFI-Net communication speeds, typically 2 Mbps and 10 Mbps, which are vital for real-time process control and data transmission in demanding industrial environments. 

Ensuring Communication Immunity in Electrically Noisy Environments:Industrial settings are often rich in electromagnetic interference (EMI) and radio-frequency interference (RFI) generated by heavy machinery, motors, and power lines. Fiber optic cables, unlike copper, are immune to such interference. The NTCF22 allows the INFI 90 control system to leverage this immunity, ensuring that critical data transmission remains stable and error-free even in highly noisy environments, leading to higher system reliability and reduced downtime.Integration of Remote I/O and Process Units:For processes where I/O points or process units are located far from the main control room or central processor cabinets, the NTCF22 enables their seamless integration into the INFI 90 system using fiber optic links. This is common in oil & gas, petrochemicals, power generation, and water treatment plants where components can be spread across vast areas.