



The ABB Bailey NTCF21 Fiber Optic Termination Unit is a communication interface module used in the ABB Bailey INFI 90 / Net 90 Distributed Control System (DCS). It is designed to terminate and interface fiber optic communication lines within industrial control networks, ensuring stable, noise-immune data transmission between distributed system nodes.
In large industrial plants, fiber optic communication is used to avoid electrical interference and support long-distance, high-speed data exchange. The NTCF21 provides a secure termination point for these optical links and integrates them into ABB Bailey rack-based control architectures.
It is commonly used in power generation, petrochemical, oil & gas, and other heavy process industries where reliable communication integrity is critical.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Fiber Optic Termination Unit |
| System Compatibility | ABB Bailey INFI 90 / Net 90 |
| Main Function | Fiber optic signal termination & interface |
| Communication Type | INFI-Net / fiber optic link |
| Signal Role | Optical data transmission interface |
| System Function | Network communication termination |
| Installation Method | Rack-mounted module |
| Construction | Industrial-grade enclosure |
| Operating Environment | Industrial automation systems |
| Operating Duty | Continuous 24/7 operation |
The NTCF21 is specifically designed for ABB Bailey INFI-Net fiber optic communication networks, providing stable optical signal termination and system integration.
Physical Dimensions & Weight
| Specification | Value |
|---|---|
| Dimensions (H × W × D) | ~178 mm × 102 mm × 178 mm |
| Weight | ~1.8 kg (varies by revision) |
Some variants may differ slightly depending on revision and packaging, but it remains a standard rack-style industrial module.
Recommended Related Models
- ABB Bailey NSBM01 SuperLoop Bus Module
- ABB Bailey NSSM01 SuperLoop Storage Module
- ABB Bailey NICS01 Communication Module
- ABB Bailey NTCL01 Control Logic Module
- ABB Bailey NPIM01 Processor Interface Module
These modules are often used together with NTCF21 to build ABB Bailey distributed communication systems.
Popular ABB Bailey Models
- NTCF21 Fiber Optic Termination Unit
- NTCF22 / NTCF23 Fiber Optic Modules
- NSBM01 Superloop Bus Module
- NMFC02 Controller Module
- NMFP01 Processor Module
These ABB Bailey components remain widely used in legacy industrial automation systems requiring stable and interference-free communication networks.