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- ABB Bailey
- NKTU01-25
- Input Output Module to Termination Unit Cable
- Sweden (SE)
- 25 feet
- 3 kg
- Xiamen, China
- New & In Stock
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- 1 Year
- 1-3 Working Days
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The ABB Bailey NKTU01-25 is an Infi 90 Input Output Module to Termination Unit Cable used to connect compatible Infi 90 I/O modules with their associated termination units. It forms part of the physical wiring path between the control-system electronics and the termination point where field wiring is brought into the system.
In an Infi 90 control cabinet, the I/O module and termination unit may be installed at different locations. The 25-foot cable gives the installation considerable routing flexibility, making it suitable for cabinets or equipment arrangements where a shorter connection cable would not provide enough reach.
For maintenance work, the NKTU01-25 can be used when an existing I/O-to-termination connection cable needs replacement. Keeping the correct cable type and length helps technicians restore the original wiring arrangement without unnecessarily changing the connected I/O or termination hardware.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB Bailey |
| Part Number | NKTU01-25 |
| Product Family | Infi 90 |
| Product Type | Input Output Module to Termination Unit Cable |
| Application | I/O Module to Termination Unit Connection |
| Cable Length | 25 feet |
| Shipping Weight | 3 kg |
Product Features
- I/O-to-termination connection — Provides the physical connection between compatible Infi 90 input/output modules and termination units.
- 25-foot cable length — Offers extended reach for installations where the I/O hardware and termination unit are positioned farther apart.
- Flexible cabinet routing — The longer cable can accommodate distributed cabinet layouts and more complex wiring paths.
- Infi 90 system application — Intended for use within compatible ABB Bailey Infi 90 control-system architectures.
- Maintenance replacement — Suitable for replacing an existing cable during troubleshooting, repair, or control-system refurbishment.
- Separates field termination from I/O hardware — Allows the termination point and electronic I/O hardware to remain at practical installation locations within the system architecture.
Working Principle
The NKTU01-25 serves as the physical signal path between an Infi 90 I/O module and its associated termination unit. The cable itself does not perform signal conditioning or control processing; those functions remain with the connected system hardware.
A simplified connection path is:
Field Wiring → Termination Unit → NKTU01-25 → Infi 90 I/O Module → Control System
The termination unit provides the field-side connection, while the NKTU01-25 carries the corresponding connections between the termination hardware and the I/O module. The 25-foot length allows the two system elements to be installed with greater physical separation.
When troubleshooting an I/O channel, the cable should be considered part of the complete signal path. A loose connection, incorrect cable installation, or physical cable damage can affect the signals reaching the I/O module even when the module itself is operating normally.
Role in an Infi 90 I/O System
| System Element | Function |
|---|---|
| Field Devices | Generate or receive process signals |
| Termination Unit | Provides the field-side termination point for process wiring |
| NKTU01-25 | Connects the termination unit to the applicable Infi 90 I/O module |
| Infi 90 I/O Module | Processes input signals or generates output signals |
| Infi 90 Controller | Uses I/O data as part of the overall control strategy |
Industrial Applications
| Application | Typical Use |
|---|---|
| Process Control Cabinets | Connecting distributed I/O modules with termination units |
| Power Generation | Carrying I/O connections between termination hardware and control-system electronics |
| Oil and Gas Facilities | Supporting field signal connections in Infi 90 installations |
| Chemical Processing | Connecting process I/O termination points to system I/O modules |
| Water and Utility Systems | Maintaining I/O signal paths in existing control cabinets |
| Control System Maintenance | Replacing damaged or aging I/O-to-termination cables |
Installation and Maintenance
- Confirm the connection type — Verify that the NKTU01-25 is intended for the specific Infi 90 I/O module and termination unit combination.
- Check the cable length requirement — Confirm that the 25-foot length is suitable for the planned routing between the I/O module and termination unit.
- Inspect the cable before installation — Look for visible damage, connector problems, excessive bending, or other physical conditions that could affect the connection.
- Identify the correct connection points — Make sure the I/O-module side and termination-unit side are connected to the appropriate locations.
- Route the cable carefully — Avoid unnecessary mechanical stress and keep the cable path organized with the surrounding cabinet wiring.
- Verify I/O operation — After installation or replacement, check the affected input and output channels and confirm that the expected process signals are being received or transmitted.
Related Components
| Component | Function / Relationship |
|---|---|
| ABB Bailey Infi 90 I/O Modules | Process input and output signals within the control system |
| ABB Bailey Infi 90 Termination Units | Provide connection points for field wiring |
| ABB Bailey NKTU Series Cables | Provide I/O module-to-termination unit connections |
| ABB Bailey Infi 90 Controller Modules | Process control logic using I/O information |
| ABB Bailey Infi 90 Field Wiring | Carries process signals between field devices and termination units |
Recommended Related Models
| Model | Product Type | Typical Application |
|---|---|---|
| ABB Bailey NKTU01-25 | Infi 90 Input Output Module to Termination Unit Cable | 25-foot I/O-to-termination connection |
| ABB Bailey NKTM02-10 | Infi 90 Expansion Cable | Infi 90 system expansion connection |
| ABB Bailey NKTM02-15 | Infi 90 Expansion Cable | Medium-distance Infi 90 interconnection |
| ABB Bailey NKTM02-20 | Infi 90 Expansion Cable | Longer Infi 90 interconnection |
| ABB Bailey NKTL01-3 | Infi 90 Coax Termination Cable | Applicable termination connections |
| ABB Bailey Infi 90 I/O Modules | I/O Module | Process signal interface |
Key Advantages
- Provides a 25-foot connection between compatible Infi 90 I/O modules and termination units.
- Offers greater installation flexibility where the I/O hardware and termination point are physically separated.
- Maintains the signal path between field termination hardware and the Infi 90 I/O module.
- Suitable for maintenance replacement in existing Infi 90 control systems.
- Helps preserve established cabinet wiring arrangements without relocating connected control hardware.
Technical FAQs
What is the main purpose of the NKTU01-25 in an Infi 90 installation?
The NKTU01-25 connects a compatible Infi 90 I/O module to its associated termination unit. It forms part of the physical signal path between the field termination point and the I/O electronics.
Why would a 25-foot NKTU01 cable be used instead of a shorter cable?
The 25-foot length is useful when the termination unit and I/O module are installed farther apart. It allows the cable to follow the available cabinet or equipment routing path without requiring the connected hardware to be relocated.
Can a damaged NKTU01-25 cause an I/O channel to appear faulty?
Yes. Since the cable forms part of the signal path between the termination unit and I/O module, a damaged cable or poor connection can interrupt the associated signal. During troubleshooting, both ends of the cable and its physical condition should be checked before replacing the I/O module.
Does the NKTU01-25 process or convert the field signals?
No. The NKTU01-25 is a connection cable rather than an active signal-processing device. Signal handling is performed by the associated termination and I/O hardware, while the cable carries the required connections between them.