The ABB Bailey NIAI02 Analog Input Termination Module is a key interface component within the ABB Bailey INFI 90 / Net 90 Distributed Control System (DCS). It is designed to provide a stable and accurate termination point for analog input signals coming from field instruments such as transmitters, sensors, and process measurement devices.
In real industrial deployments, the NIAI02 is not just a passive connection unit—it plays an important role in signal conditioning, wiring organization, and noise reduction at the cabinet level. It ensures that analog signals entering the control system remain stable, clean, and ready for accurate processing by downstream modules.
This makes it an essential part of reliable process control architectures in power plants, oil & gas facilities, and continuous manufacturing systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Analog Input Termination Module |
| System Compatibility | ABB Bailey INFI 90 / Net 90 |
| Function | Signal termination and interface for analog inputs |
| Input Types | Voltage / current / thermocouple (system dependent) |
| Channel Capacity | Typically supports multiple analog channels (system configured) |
| Signal Conditioning | Cold junction compensation support (with associated modules) |
| Power Requirement | 24 VDC system supply |
| Mounting Type | Termination mounting unit (rack-based installation) |
| Operating Temperature | 0°C to 70°C |
| Environmental Rating | Industrial cabinet installation |
Physical Dimensions & Weight
| Specification | Value |
|---|---|
| Dimensions (H × W × D) | 178 mm × 51 mm × 178 mm |
| Weight | ~0.3 kg |
The compact termination form factor is designed to fit standard ABB Bailey termination mounting units, enabling clean wiring and efficient cabinet organization.
Recommended Related Models
- ABB Bailey NIAI02 Analog Input Termination Unit (base system variants)
- ABB Bailey NIAM02 Analog Master Termination Module
- ABB Bailey IMASI23 Analog Input Slave Module
- ABB Bailey IMASM02 Thermocouple Input Module
- ABB Bailey IMMFP11 Multi-Function Processor Module
These modules work together to complete the full analog measurement chain from field signal acquisition to system-level processing.
Popular ABB Bailey Models
- NIAI02 Analog Input Termination Module
- NIAM02 Analog Master Termination Module
- IMASI23 Analog Input Module
- IMAMM03 Analog Master Module
- INFI 90 System I/O Termination Units
These components are widely used in long-life ABB Bailey systems still operating in global industrial infrastructure.
