ABB NKTU01-20 Termination Cable

ABB NKTU01-20 Termination Cable for INFI 90 & Net 90 DCS Systems

The ABB NKTU01-20 Termination Cable provides critical signal connectivity between Network Interface Stations (NIS) and termination units within ABB's INFI 90 and Net 90 distributed control system architectures. Engineered with shielded construction and industrial-grade connectors, this termination cable ensures reliable data transmission and electromagnetic immunity in process automation environments across oil & gas, chemical processing, power generation, and manufacturing facilities requiring proven legacy DCS infrastructure.

Core Technical Specifications

• Cable Type: Shielded multi-conductor termination cable
• Length: 20 meters (65.6 feet) standard configuration
• Conductor Material: Tinned copper for corrosion resistance
• Shielding: Braided shield for EMI/RFI protection
• Connector Type: Industrial-grade connectors for NIS and termination units
• Voltage Rating: Low-voltage signal transmission rated
• Operating Temperature: -20°C to +70°C industrial environment
• Bend Radius: Minimum bend radius for installation flexibility
• Jacket Material: PVC or TPE industrial cable jacket
• Compliance: UL, CSA, CE industrial cable standards
• System Compatibility: INFI 90, Net 90 DCS platforms
• Application: NIS to termination unit connectivity

Advanced Cable Design Features

The NKTU01-20 incorporates sophisticated construction techniques essential for maintaining signal integrity in industrial automation environments:

• Electromagnetic Shielding: Comprehensive braided shield coverage provides >90% shielding effectiveness against electromagnetic interference from VFDs, motors, and switching equipment common in process control environments
• Twisted Pair Construction: Individual signal pairs utilize controlled twist geometry to minimize crosstalk between adjacent conductors and enhance common-mode noise rejection in long cable runs
• Industrial Connector Design: Ruggedized connectors with positive locking mechanisms ensure secure mating and prevent accidental disconnection during maintenance or vibration exposure
• Flexible Jacket Material: Durable outer jacket resists oil, chemicals, abrasion, and UV exposure while maintaining flexibility for routing through cable trays and conduit systems
• Color-Coded Conductors: Standardized wire color coding facilitates installation, troubleshooting, and maintenance activities by clearly identifying signal pairs and shield connections
• Strain Relief Integration: Built-in strain relief at connector interfaces protects conductor terminations from mechanical stress during installation and operational vibration

DCS System Integration Applications

This termination cable addresses critical connectivity requirements within ABB's legacy distributed control systems where reliable signal transmission directly impacts process control integrity:

• Network Interface Station Connectivity: Establishes primary communication link between NIS modules and field termination assemblies, enabling bidirectional data exchange for process I/O, controller communication, and diagnostic information
• Redundant System Architectures: Supports dual-redundant NIS configurations in high-availability applications where continuous process control is essential for safety and production continuity
• Distributed I/O Networks: Connects remote termination units to central control processors in geographically distributed process units spanning refineries, chemical plants, and power generation facilities
• Legacy System Maintenance: Provides replacement cabling for aging INFI 90 and Net 90 installations requiring infrastructure upgrades without complete system replacement
• System Expansion Projects: Enables addition of new I/O termination points to existing DCS networks during plant capacity expansions or process modifications
• Migration Support: Facilitates phased migration strategies where INFI 90/Net 90 systems interface with modern control platforms during gradual system modernization

INFI 90 & Net 90 System Architecture

The NKTU01-20 integrates within ABB's proven INFI 90 and Net 90 distributed control ecosystems, connecting Network Interface Stations to termination units housing field I/O modules. The cable routes through industrial cable management systems including cable trays, conduit, and wireways, with proper grounding and shielding termination to maintain signal integrity. Installation follows ABB's documented practices for cable routing, separation from power circuits, and shield grounding to minimize noise coupling.

Engineering Design Excellence

• Standardized Length: 20-meter length accommodates typical control room to field cabinet distances while minimizing excess cable management requirements
• Field-Proven Reliability: Decades of operational history in critical process control applications demonstrate long-term durability and signal integrity maintenance
• Installation Flexibility: Flexible construction enables routing through existing cable pathways during retrofit projects without requiring major infrastructure modifications
• Maintenance Accessibility: Removable connectors facilitate cable replacement during scheduled maintenance windows without disturbing adjacent system wiring
• Documentation Support: Comprehensive cable specifications, pinout diagrams, and installation guidelines ensure proper implementation and troubleshooting
• Spare Parts Availability: Continued availability of replacement cables supports long-term maintenance of legacy INFI 90 and Net 90 installations

Installation & Commissioning

Cable installation involves routing from NIS module location to termination unit cabinet through designated cable pathways with proper support and separation from power circuits. Connector mating requires alignment of keyed interfaces and secure locking mechanism engagement. Shield termination connects to designated grounding points per ABB installation standards. Installation verification includes continuity testing, insulation resistance measurement, and shield integrity confirmation—typically completed in 30-45 minutes per cable by qualified instrumentation technicians.

Quality Standards & Compliance

Manufactured under ISO 9001:2015 quality management systems with complete material traceability. Complies with UL industrial cable standards, CSA electrical safety specifications, and CE electromagnetic compatibility directives. Cable construction meets IEC 60227 and IEC 60245 flexible cable standards. Suitable for installation in industrial control environments meeting NEC Article 725 Class 2 circuit requirements. RoHS compliant with lead-free materials.

Related Products for Complete INFI 90 & Net 90 Solutions

Why Choose Industrial Control Hub?

We specialize in delivering authentic ABB INFI 90 and Net 90 system components with comprehensive technical documentation, legacy system support, and expedited global logistics. Our DCS specialists provide pre-sale consultation to ensure proper cable selection, length verification, and compatibility confirmation for your specific system configuration. Post-sale support includes installation guidance, troubleshooting assistance, and lifecycle maintenance planning to maximize system reliability and extend operational life of legacy control infrastructure.

Product Authenticity: Genuine ABB components with complete traceability and quality certification
Technical Expertise: Legacy DCS system specialists with decades of INFI 90/Net 90 experience
Express Logistics: Priority shipping to critical industrial facilities with customs documentation
Warranty Coverage: Comprehensive warranty with extended protection options
Documentation Suite: Complete cable specifications, installation guides, pinout diagrams, and system integration manuals

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