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- ABB Bailey
- NTRL02B
- Fiber Optic Remote I/O Termination Unit
- Sweden (SE)
- 150 × 25 × 100 mm
- 0.18 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
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- 24-Hour Service
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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The ABB Bailey NTRL02B INFI 90 Fiber Optic Remote I/O Termination Unit is an interface component used in ABB Bailey INFI 90 distributed control systems for remote I/O connections over fiber optic communication links. It provides the termination interface between remote I/O wiring and the associated fiber optic system hardware.
In a distributed control installation, remote I/O allows field signals to be handled closer to the process while reducing the need to route every field circuit back to a central control cabinet. The NTRL02B forms part of this remote I/O interface arrangement, supporting the connection between field-side I/O circuits and the INFI 90 communication architecture.
For replacement work, the complete NTRL02B part number should be verified against the existing INFI 90 remote I/O configuration. The fiber optic interface, remote I/O hardware, cable assemblies, terminal assignments, and associated system modules should be checked before installation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB Bailey |
| Model | NTRL02B |
| Product Family | INFI 90 |
| Product Type | Fiber Optic Remote I/O Termination Unit |
| Unit Function | Remote I/O Signal Termination and Interface |
| Application | Distributed Process Control |
| System | ABB Bailey INFI 90 |
| Communication Interface | Fiber Optic Remote I/O |
| Module Type | Remote I/O Termination Unit |
| Interface Function | Remote I/O and Control System Interconnection |
| Dimensions | 150 × 25 × 100 mm |
| Weight | 0.18 kg |
Product Features
- Fiber optic remote I/O termination unit for ABB Bailey INFI 90 systems.
- Supports the interface between remote I/O circuits and the INFI 90 control architecture.
- Suitable for distributed field I/O installations.
- Helps separate remote field wiring from centralized controller hardware.
- Supports structured termination of remote I/O connections.
- Suitable for control-system applications where fiber optic communication is used between remote and central equipment.
- Intended as an interface component rather than an independent controller.
Working Principle
The NTRL02B operates at the interface between remote I/O field wiring and the fiber optic communication path used by the INFI 90 system. Field signals are connected to the remote I/O hardware, while the termination unit provides the required connection arrangement for the remote I/O system.
A simplified signal path is:
Field Devices → Remote I/O Hardware → NTRL02B → Fiber Optic Link → INFI 90 Control System
For incoming process signals, the remote I/O system acquires the field information and transfers it through the fiber optic communication path toward the INFI 90 control system. For output signals, control commands travel in the opposite direction toward the remote I/O equipment and associated field devices.
The NTRL02B itself is primarily concerned with termination and interconnection. Signal processing and control decisions remain functions of the associated remote I/O and INFI 90 control hardware.
Role in an INFI 90 Remote I/O Control Architecture
| System Element | Function |
|---|---|
| Field Devices | Provide process measurements and discrete status signals |
| Remote I/O Modules | Acquire field inputs and drive field outputs |
| ABB Bailey NTRL02B | Provides the remote I/O termination and interface |
| Fiber Optic Link | Transfers remote I/O data between distributed system locations |
| INFI 90 Control Hardware | Processes remote I/O data and executes control logic |
| INFI 90 Network | Provides system-level control and data communication |
| Operator Interface | Displays process values, alarms, and system status |
| Final Control Devices | Execute control commands at the process |
The NTRL02B belongs to the distributed I/O interface layer. It helps connect remote field I/O with the central INFI 90 control architecture while the fiber optic link carries the corresponding system data between locations.
Industrial Applications
| Application | Typical Use |
|---|---|
| Distributed Process Control | Remote field I/O interface |
| Power Generation | Remote monitoring and control connections |
| Chemical Processing | Fiber-based remote I/O installations |
| Oil and Gas | Distributed field signal acquisition |
| Industrial Utilities | Remote I/O over fiber optic infrastructure |
| Large Control Systems | Separation of field I/O from central control cabinets |
| INFI 90 Retrofit | Replacement of existing remote I/O termination hardware |
Installation and Maintenance
- Confirm the complete NTRL02B part number before replacement.
- Place the associated INFI 90 remote I/O system in the required maintenance state.
- Isolate relevant electrical circuits according to site safety procedures.
- Document existing remote I/O terminal and cable connections before removal.
- Inspect terminal connections and remote I/O cables for physical damage.
- Verify the fiber optic interface and associated communication hardware are compatible with the installed system.
- Install the NTRL02B in the designated remote I/O cabinet or termination location.
- Reconnect field and system-side wiring according to the approved drawings.
- Inspect fiber optic connections for contamination, damage, or incorrect routing.
- Verify that all electrical and fiber connections are properly seated before energizing the system.
- Check remote I/O and INFI 90 diagnostics after restoring power.
- Verify representative remote input and output signals before returning the system to normal operation.
Related Components
| Component | Relationship |
|---|---|
| ABB Bailey INFI 90 Remote I/O Modules | Provide the distributed field I/O functions |
| Fiber Optic Communication Hardware | Transfers remote I/O data between system locations |
| INFI 90 Controllers | Execute process control logic using remote I/O data |
| Remote I/O Cable Assemblies | Connect field and remote I/O hardware |
| ABB Bailey Termination Units | Provide additional system and field wiring interfaces |
| INFI 90 Network Components | Support system-level communication |
| Field Devices | Provide process inputs and receive control outputs |
Recommended Related Models
| Model | Product Type / Application |
|---|---|
| ABB Bailey NTRL02B | INFI 90 Fiber Optic Remote I/O Termination Unit |
| ABB Bailey NTPL01 | INFI 90 Plant Loop Termination Unit |
| ABB Bailey NTMF01 | INFI 90 Multi-Function Controller Termination Unit |
| ABB Bailey NTMP01 | INFI 90 Multi-Function Processor Termination Unit |
| ABB Bailey NTMU02 | INFI 90 Termination Mounting Unit |
| ABB Bailey INFI 90 Remote I/O Modules | Distributed process signal interface |
Key Advantages
- Dedicated remote I/O termination interface for INFI 90 systems.
- Supports fiber optic remote I/O architectures.
- Helps organize distributed field I/O connections.
- Separates remote field wiring from centralized control hardware.
- Suitable for maintenance and retrofit applications.
Technical FAQs
What is the function of the ABB Bailey NTRL02B?
The NTRL02B is an INFI 90 Fiber Optic Remote I/O Termination Unit. It provides the termination and interface between remote I/O hardware and the fiber optic communication path within the INFI 90 control architecture.
Does the NTRL02B perform remote I/O signal processing?
The NTRL02B primarily provides termination and interconnection. Remote I/O modules perform field signal acquisition and output functions, while the associated INFI 90 control hardware handles control logic and system processing.
What should be checked when replacing an NTRL02B?
Verify the complete part number, remote I/O configuration, fiber optic communication hardware, field wiring, cable assemblies, and terminal assignments. The existing connection arrangement should be documented before removing the installed unit.
What should be checked if remote I/O communication is lost?
Check the electrical termination connections first, followed by the fiber optic connections and associated remote I/O hardware. Inspect fiber interfaces for contamination or physical damage, then review the INFI 90 system and remote I/O diagnostics to determine where communication is interrupted.