



Industrial Overview
The ABB Bailey NTCS02 Control I/O Termination Unit is a reliable interface module used in the INFI 90 Distributed Control System (DCS). It is designed to provide structured and stable termination for control and I/O signal connections, ensuring accurate signal routing between field devices and system processing modules.
This unit is an important part of ABB Bailey’s legacy automation architecture, helping to simplify wiring, improve signal integrity, and maintain consistent communication performance in complex industrial environments such as power plants, refineries, and process manufacturing facilities.
Engineered for long-term operation, the NTCS02 supports high-density I/O termination while maintaining resistance to electrical noise and environmental stress.
Technical Specifications
| Parameter | Details |
|---|
| Model | NTCS02 |
| System | ABB Bailey INFI 90 / Network 90 |
| Type | Control I/O Termination Unit |
| Function | Field signal termination for I/O modules |
| Supported Modules | INFI 90 I/O and control interface systems |
| Signal Type | Analog & Digital I/O (system dependent) |
| Power Requirement | 24 VDC |
| Power Consumption | ~20–30 mA (low power design) |
| Mounting Type | Cabinet / termination panel mounted |
| Operating Temperature | 0°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Dimensions (HxWxD) | Approx. 203 × 51 × 178 mm |
| Weight | Approx. 0.35–0.45 kg |
Applications
The NTCS02 is widely used in industrial distributed control systems where reliable I/O signal termination is required:
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Oil & gas production and refining systems
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Power generation and turbine control systems
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Petrochemical and chemical processing plants
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Water and wastewater treatment facilities
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Heavy industrial automation systems
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Legacy ABB Bailey INFI 90 DCS maintenance projects
It is especially valuable in systems requiring stable signal integrity and organized field wiring management in large-scale control cabinets.
Technical FAQs
1. What is the main function of the NTCS02?
It provides termination for control and I/O signals in ABB INFI 90 systems.
2. What system is it used in?
It is used in ABB Bailey INFI 90 Distributed Control Systems.
3. What types of signals does it handle?
It supports analog and digital I/O signals depending on system configuration.
4. What is its power requirement?
It operates on a 24 VDC supply with low current consumption.
5. What industries use this module?
Oil & gas, power generation, petrochemical, and water treatment industries.
6. Is it an active processing module?
No, it is a passive termination interface unit.
7. What is its operating temperature range?
0°C to +70°C.
8. How is it installed?
It is mounted inside control cabinets on termination panels.
9. What is its main benefit?
It improves signal reliability and simplifies field wiring organization.
10. Is it still used in modern systems?
It is primarily used in existing installed ABB INFI 90 legacy systems.