ABB NTCF22 INFI-Net Optic-to-Electric Termination Unit

Product Description: The NTCF22 is an ABB INFI-Net optical-to-electrical termination unit for the ABB Symphony INFI90 DCS system. It converts INFI-Net optical fiber signals into electrical bus signals, acting as the media converter between fiber trunk links and the Harmony control rack backplane. This module enables long-distance, noise-immune fiber communication for INFI-Net control network, interconnecting controllers, I/O modules and operator stations across different control rooms or plant areas.

Features:

• INFI‑Net fiber to electrical converter TU, dedicated for Symphony / INFI90 Harmony rack
• Supports INFI‑Net redundant fiber bus topology for DCS control network
• Optical isolation eliminates ground loop interference and EMI noise in power plant environments
• Hot‑swap capable, standard Eurocard form factor for Harmony rack installation
• Onboard status LED indicators for link health, fiber fault and communication diagnostics
• Comes with internal backup batteries for configuration retention during power loss
• Provides electrical INFI‑Net bus port to connect local rack controllers and I/O cards

Applications:

• Thermal power plant INFI90 DCS control network fiber extension
• Petrochemical and refinery distributed control system communication cabinet
• Remote auxiliary control room fiber interconnection for boiler and turbine systems
• Legacy Symphony DCS spare replacement and system retrofitting
• Pulp, paper and chemical plant long-distance process control networking

FAQ:

Q: What is the difference between NTCF22 and NTCF21?
A: Both are INFI-Net media converters; they differ in fiber specification, transmission distance and hardware revision, not directly plug-and-play interchangeable.

Q: Can NTCF22 work with ABB 800xA system?
A: No, it is exclusive to the old INFI90 / Symphony Harmony platform and incompatible with AC800M 800xA racks.

Q: Is NTCF22 still in production?
A: The INFI90 Symphony series is obsolete. Available stock is NOS surplus or fully tested refurbished units.