Industrial Overview
The ABB Bailey NTCF03 Termination Unit is a specialized interface module used in the INFI 90 Distributed Control System (DCS). It is designed to perform electric-to-fiber optic signal conversion and termination, enabling reliable communication between field wiring and INFI 90 system networks.
This module plays a critical role in ensuring stable, noise-immune, and long-distance data transmission, especially in industrial environments where electromagnetic interference, grounding issues, and harsh operating conditions can affect traditional electrical signals.
The NTCF03 is commonly deployed in legacy ABB Bailey installations that require continued high-integrity communication between control system nodes and remote I/O or network segments.
Technical Specifications
| Parameter | Details |
|---|
| Model | NTCF03 |
| System | ABB Bailey INFI 90 |
| Type | Electric to Fiber Optic Termination Unit |
| Function | Signal conversion + fiber optic termination |
| Communication Type | INFI-NET / Fiber optic interface |
| Power Requirement | 24 VDC (low power system supply) |
| Power Consumption | Low (typ. < 1 W system load) |
| Signal Interface | Electrical ↔ Optical conversion |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5%–95% non-condensing |
| Mounting Type | Panel / cabinet termination assembly |
| Dimensions (HxWxD) | Approx. 178 × 158 × 38 mm |
| Weight | Approx. 0.4–0.6 kg |
Applications
The NTCF03 is widely used in ABB Bailey INFI 90 systems across industrial sectors where long-distance and interference-free communication is required:
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Oil & gas production and pipeline control systems
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Power generation and substation automation
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Petrochemical and refinery distributed control systems
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Water and wastewater treatment plants
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Heavy industrial process automation
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Legacy DCS modernization and maintenance projects
It is especially valuable in installations requiring fiber optic communication between remote control racks or field I/O clusters.
Technical FAQs
1. What is the main function of the NTCF03?
It converts electrical signals into fiber optic signals for INFI 90 communication networks.
2. What system is it used in?
It is used in ABB Bailey INFI 90 Distributed Control Systems.
3. Does it support bidirectional communication?
Yes, it supports full communication between electrical and optical domains.
4. What type of communication does it handle?
It supports INFI-NET fiber optic communication links.
5. What is its power requirement?
It operates on a 24 VDC supply with low power consumption.
6. What industries use this module?
Oil & gas, power generation, petrochemical, and water treatment industries.
7. Is it still used in modern systems?
It is primarily used in legacy INFI 90 systems still in service.
8. What is its operating temperature range?
It operates between -20°C and +70°C.
9. How is it installed?
It is mounted inside control cabinets or termination panels.
10. What is its main advantage over electrical-only modules?
It provides superior noise immunity and long-distance communication capability via fiber optics.
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