Overview
Manuals
Working principle
Applications
Procurement Status
Features:
- Fiber Optic Termination Unit
- Symphony Harmony INFI 90 ASI Analog Slave Inputs
- Designed for the Symphony Harmony (INFI 90) distributed control system
Its primary function is to detect temperature changes and convert them into corresponding electrical signals for interpretation by control or monitoring systems. This enables real-time, accurate monitoring of equipment and process temperatures, supporting the stable and efficient operation of industrial systems.
It provides reliable temperature feedback, helping to prevent overheating, ensure operational safety, and improve energy management efficiency. Its stable sensing characteristics make it ideal for integration into automated systems requiring consistent and accurate temperature data.
The NTCF21 ABB Fiber Optic Termination Unit may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB NTCF21 Fiber Optic Termination Unit Manual(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The NTCF21 operates based on the change in resistance of its sensing element with temperature. When the temperature in the monitored environment changes, the sensor's resistance changes accordingly. This resistance change is then converted into an electrical signal and transmitted to the control system for processing. Through this mechanism, the NTCF21 enables continuous, real-time temperature measurement and reliable temperature monitoring in industrial environments.
Long-distance Data Backbone: Establishes closed-loop fiber optic links between physically separated plant areas (e.g., control rooms and remote boiler rooms) to eliminate packet loss.
Power Generation and Infrastructure: Widely used in coal-fired power plants, renewable energy (solar/wind) and water transmission networks, where electromagnetic interference (EMI) immunity is crucial.
System Upgrades: Can serve as an improved replacement for older NTCF0X and NTCF1X terminal series, enabling facilities to improve communication stability without requiring a complete system overhaul.
The NTCF21 is currently discontinued.
Do you need assistance setting up patch cords or switches to configure communication speeds for a specific network?
Proactive Follow-up: When replacing the NTCF21, always perform a loopback test to verify that the fiber optic signal terminates correctly before restoring the communication loop.
