The ABB Bailey NDSO04 Digital Output Module is a compact and reliable field output component designed for the ABB Bailey INFI 90 / Net 90 Distributed Control System. It is engineered to execute control commands from the automation system and convert them into stable digital switching signals for industrial field devices.
This module is widely used in legacy DCS environments where long-term stability, predictable switching behavior, and minimal maintenance are critical. Despite its compact design, the NDSO04 delivers strong performance in continuous industrial operations such as power plants, oil & gas facilities, and process manufacturing systems.
Its value lies in system continuity—allowing operators to extend the life of existing ABB Bailey infrastructure without disruptive full-system replacement.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Digital Output Module |
| System Compatibility | ABB Bailey INFI 90 / Net 90 |
| Output Channels | 4 isolated digital output channels |
| Output Type | Solid-state relay outputs |
| Output Rating | Up to 250 VAC / 5A per channel |
| Isolation | Optical isolation between channels and logic |
| Power Supply | 24 VDC external system supply |
| Power Consumption | ~12 W |
| Communication | Backplane / system bus interface |
| Mounting Type | Rack / chassis mounted module |
| Operating Temperature | 0°C to 60°C |
| Humidity | 5%–95% non-condensing |
Physical Dimensions & Weight
| Specification | Value |
|---|---|
| Dimensions (H × W × D) | 178 mm × 51 mm × 330 mm |
| Weight | ~0.3 kg |
The rack-style structure provides a stable mechanical fit while optimizing cabinet space in dense control systems.
Recommended Related Models
- ABB Bailey NDSI04 Digital Input Module
- ABB Bailey NDSO02 Digital Output Module
- ABB Bailey IMDSO04 High-Density Output Module
- ABB Bailey IMASI23 Analog Input Module
- ABB Bailey IMMFP11 Multi-Function Processor Module
These modules are commonly integrated to build a complete ABB Bailey control loop covering input, processing, and output layers.
Popular ABB Bailey Models
- NDSM04 Digital Input Module
- NDSO01 Digital Output Module
- IMDSO04 Digital Slave Output Module
- IMMFP12 Process Controller Module
- INNIS01 Network Interface Module
These models remain widely deployed in long-life industrial automation systems around the world.
