The ABB Bailey NTAO01 Analog Output Termination Unit is a field interface module used in the ABB Bailey INFI 90 / Net 90 Distributed Control System (DCS). It is designed to terminate and route analog output signals from control modules to field devices such as control valves, actuators, and current-driven instruments.
This module ensures accurate and stable analog signal delivery by providing organized field wiring, signal conditioning, and electrical isolation. It is widely used in industrial automation systems where precise analog control output (typically 4–20 mA) is required for process control applications.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Analog Output Termination Unit |
| System Compatibility | ABB Bailey INFI 90 / Net 90 |
| Main Function | Analog output signal termination & field interface |
| Output Signal Type | 4–20 mA current loop (typical) |
| Channels | 4 analog output channels |
| Signal Resolution | 12-bit (system dependent) |
| Isolation | ~500 V AC isolation |
| Update Rate | ~100 ms per channel |
| Power Supply | +5 V DC |
| Installation Method | Rack-mounted / termination panel |
| Operating Environment | Industrial automation systems |
| Operating Duty | Continuous 24/7 operation |
The NTAO01 is designed to interface with ABB Bailey analog output modules (such as IMASO series) and provide stable field signal termination for process control devices.
Physical Dimensions & Weight
| Specification | Value |
|---|---|
| Dimensions (H × W × D) | 178 mm × 51 mm × 203 mm |
| Weight | ~0.3 kg |
These compact dimensions allow efficient mounting in ABB Bailey control cabinets while maintaining clean and organized field wiring layouts.
Recommended Related Models
- ABB Bailey IMASO01 Analog Output Module
- ABB Bailey IMASO11 Analog Output Module
- ABB Bailey NTAI02 / NTAI06 Analog Input Termination Units
- ABB Bailey NTDI01 Digital Input Termination Unit
- ABB Bailey NPIM01 Processor Interface Module
These modules are typically used together to complete ABB Bailey analog I/O and control loop architectures.
Popular ABB Bailey Models
- NTAO01 Analog Output Termination Unit
- NTAI02 Analog Input Termination Unit
- IMASO01 Analog Output Module
- NMFC02 Controller Module
- NMFP01 Processor Module
These ABB Bailey components remain widely used in long-life industrial automation systems requiring stable legacy DCS operation.
