Emerson KJ4001X1-NA1 Horizontal LocalBus Dual Right Extender

Emerson KJ4001X1-NA1 Horizontal LocalBus Dual Right Cable Extender - DeltaV I/O Expansion Solution

The Emerson KJ4001X1-NA1 (ABRES2T0200B) Horizontal LocalBus Dual Right Cable Extender enables flexible horizontal expansion of DeltaV distributed control system I/O architectures. This dual-connector right-side extender provides simultaneous LocalBus connectivity to two I/O carriers positioned to the right of the controller or previous carrier, supporting 12VDC at 8A for reliable power and communication distribution across oil & gas, chemical, pharmaceutical, and power generation facilities.

Core Technical Specifications

• Model Number: KJ4001X1-NA1 (Alternate: ABRES2T0200B)
• Configuration: Horizontal dual right extender for parallel I/O carrier connections
• LocalBus Power: 12VDC at 8A maximum current capacity
• Connector Type: Dual right-side connectors for branching architecture
• Operating Temperature: -40°C to +70°C (-40°F to 158°F)
• Maximum System Length: 6.5 meters combined (I/O carriers + LocalBus extenders)
• Environmental Protection: IP20 rating with ISA-S71.04-1985 Class G3 conformal coating
• System Compatibility: DeltaV M-series and S-series controllers with I/O carriers

Global Hazardous Area Certifications

Certified for deployment in classified industrial environments worldwide:

• FM/CSA North America: Class I, Division 2, Groups A-D, T4; Class I, Zone 2 applications
• ATEX Europe: Zone 2 certified for explosive atmosphere installations
• IECEx International: Compliant with global hazardous area standards per Document 12P2046
• Marine Certification: DNV and ABS approved for offshore platforms and maritime installations

Industrial System Architecture Applications

Parallel I/O Carrier Configurations: Enable side-by-side mounting of two I/O carriers from a single LocalBus connection point. The dual right configuration allows branching architecture where one controller or carrier feeds two adjacent carriers positioned to the right, maximizing cabinet density while maintaining the 6.5-meter total system length requirement for reliable LocalBus communication.

Redundant I/O System Layouts: Support redundant I/O carrier installations where primary and backup carriers operate in parallel. The dual right extender provides simultaneous LocalBus connectivity to both carriers, enabling seamless failover in safety-critical applications such as emergency shutdown (ESD) systems, fire & gas detection, and turbine control in power generation facilities.

Process Unit Segregation: Organize I/O carriers by process unit or functional area within large control cabinets. Connect carriers handling reactor control signals alongside carriers managing separation unit instrumentation, maintaining logical field termination groupings while sharing common LocalBus infrastructure for simplified troubleshooting and maintenance.

Refinery Distributed Control Rooms: Accommodate horizontal cabinet layouts common in refinery control buildings where multiple I/O carriers are mounted side-by-side in wide marshalling panels. The dual right extender eliminates the need for daisy-chain wiring, reducing cable clutter and improving cabinet organization for easier access during commissioning and troubleshooting.

Offshore Platform Space Optimization: Maximize limited equipment room space on offshore oil & gas platforms by mounting I/O carriers horizontally rather than vertically. The rugged construction withstands marine environments with 10g shock resistance and vibration tolerance up to 0.5g (16-150 Hz), critical for installations subject to wave motion, helicopter landings, and mechanical vibration from rotating equipment.

Dual Right Extender Architecture Advantages

Critical benefits for flexible DeltaV I/O system design:

• Branching Topology: Single input feeds two output connections, reducing total cable count and simplifying cabinet wiring
• Parallel Carrier Operation: Both connected carriers operate simultaneously on the same LocalBus segment
• Flexible Cabinet Layouts: Accommodates horizontal, vertical, or mixed I/O carrier arrangements
• Reduced Installation Time: Pre-assembled dual connector eliminates field termination errors
• Scalable Architecture: Add I/O capacity incrementally without controller upgrades or major rewiring

Installation Requirements & Best Practices

Critical guidelines for reliable LocalBus operation:

Maximum System Length: The combined length of all I/O carriers and LocalBus extender cables must not exceed 6.5 meters. This includes the physical dimensions of carriers plus the length of all extender cables in the LocalBus chain. When using dual extenders, both branches count toward the total system length limit.

Power Budget Management: Calculate total I/O module power consumption across both connected carriers to ensure combined load remains within the 12VDC at 8A LocalBus capacity. High-density analog modules, HART-enabled CHARMs, and redundant power supplies consume more power than discrete I/O, requiring careful system planning to avoid overloading the LocalBus power supply.

Conduit Protection: All interconnecting cables between separate enclosures MUST be installed in conduit for mechanical protection and EMC compliance. This requirement applies to both hazardous and non-hazardous area installations to prevent cable damage from accidental impact, rodent intrusion, or environmental exposure.

Grounding & Shielding: Maintain proper cabinet grounding and LocalBus shield continuity throughout the cable chain. Improper grounding can introduce ground loops, common mode noise, and communication errors, particularly in installations with multiple cabinets or long cable runs near VFDs and high-power equipment.

Load Balancing: Distribute I/O modules evenly between the two connected carriers to balance power consumption and minimize voltage drop. Avoid concentrating high-power modules on one carrier while leaving the other lightly loaded, as this can cause uneven LocalBus loading and potential communication issues.

Hazardous Area Installation Requirements

Critical safety guidelines for classified locations:

• Installation Documentation: Refer to Document 12P2046 "DeltaV Scalable Process System Zone 2 Installation Instructions" and "Installing Your DeltaV Automation System" manual
• De-Energized Installation: Extender cables MUST NOT be inserted or removed while system power is energized unless area is verified non-hazardous
• Energy Isolation: Disconnect LocalBus power and verify zero energy state before cable installation or removal in classified areas
• Conduit Requirements: Inter-enclosure cables require rigid or flexible conduit rated for the area classification
• Hot Work Permits: Cable installation in hazardous areas may require hot work permits and gas testing depending on local regulations

Environmental Specifications

LocalBus Extender Cable Family

Why Choose Industrial Control Hub?

Your specialized source for genuine Emerson DeltaV automation components:

• ✓ 100% authentic OEM products with full manufacturer traceability and warranty
• ✓ Expert DCS technical support from certified automation engineers
• ✓ Extensive inventory of current production and legacy DeltaV interconnect cables
• ✓ Expedited global shipping to US, UK, EU, and Asia-Pacific markets
• ✓ Competitive pricing with volume discounts for project quantities
• ✓ Complete documentation, installation drawings, and system design assistance

Complementary DeltaV LocalBus Components

Ordering Information & System Planning

• KJ4001X1-NA1 (ABRES2T0200B): Horizontal LocalBus Dual Right Cable Extender (this product)
• System Planning: Calculate total carrier dimensions + cable lengths to ensure ≤6.5m total system length
• Power Budget: Verify total I/O module consumption across both carriers remains within 12VDC @ 8A LocalBus capacity
• Redundancy Considerations: For redundant systems, ensure both primary and backup carriers are powered from separate LocalBus segments

Technical Documentation & Support

Complete installation manuals including Document 12P2046 (Zone 2 Installation Instructions) and "Installing Your DeltaV Automation System" available upon request. Our application engineering team provides system architecture consultation, LocalBus topology design, power budget analysis, and cabinet layout optimization for complex DeltaV expansions with dual extender configurations.

Maintenance & Service Life

• No User-Serviceable Parts: Factory-assembled cable with sealed dual connectors requires no field maintenance
• No Calibration Required: Digital communication protocol eliminates drift and calibration requirements
• Do Not Disassemble: Connector disassembly voids warranty and may compromise signal integrity
• Replacement Criteria: Replace if physical damage, connector wear, or communication errors occur on either branch

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