Product Overview

The Emerson KJ4003X1-BH1 Single Carrier Extender Cable is a high-performance industrial communication cable engineered for the Emerson DeltaV™ Distributed Control System (DCS). Specifically designed for DeltaV S-Series Horizontal Carriers, this cable extends the LocalBus connection between individual carriers, allowing flexible cabinet layouts while maintaining reliable high-speed communication and power distribution across the control system.

In modern distributed control systems, cabinet space optimization and modular expansion are essential for improving installation efficiency and simplifying maintenance. The KJ4003X1-BH1 provides a dependable LocalBus extension solution that enables engineers to separate carriers without compromising communication integrity or system performance. The cable features industrial-grade shielding, robust 22-pin connectors, and high-quality conductors that ensure stable signal transmission even in electrically noisy environments.

With a cable length of 1.1 meters (43 inches) and a shipping weight of 3 kg, the KJ4003X1-BH1 offers sufficient installation flexibility for medium-distance carrier expansion inside DeltaV cabinets. Its rugged construction allows continuous operation in industrial environments exposed to vibration, humidity, temperature fluctuations, and electromagnetic interference.

The cable is widely used in process automation industries including power generation, oil and gas, chemical processing, pharmaceutical manufacturing, pulp and paper production, mining, and water treatment plants where reliable controller communication is critical for uninterrupted plant operation.

Technical Specifications

Function and Working Principle

The Emerson KJ4003X1-BH1 provides a secure LocalBus communication path between DeltaV S-Series carriers.

During system operation, controllers, I/O interfaces, communication modules, and power distribution components exchange control commands, process variables, diagnostic information, and synchronization data through the LocalBus. The KJ4003X1-BH1 extends this communication path while preserving signal quality and minimizing transmission losses.

The cable incorporates industrial shielding and precision conductor design to reduce electromagnetic interference generated by variable frequency drives, large motors, switchgear, and other high-power electrical equipment. Its 22-pin connector configuration ensures reliable electrical contact while simplifying installation and future maintenance.

Key operating features include:

• High-speed LocalBus communication
• Stable signal transmission
• Low communication latency
• Excellent electromagnetic interference resistance
• Industrial-grade cable shielding
• Flexible cabinet layout support
• Reliable connector performance
• Long operational service life

Role in Industrial Control Systems

Within the Emerson DeltaV Distributed Control System, the KJ4003X1-BH1 serves as an essential communication accessory supporting cabinet expansion and flexible carrier installation.

Its primary responsibilities include:

• LocalBus extension
• Carrier-to-carrier communication
• Controller connectivity
• Cabinet layout optimization
• System expansion support
• Signal integrity preservation
• Communication reliability enhancement
• Simplified maintenance and installation

Its dependable communication performance contributes to continuous plant operation while reducing installation complexity.

Industrial Applications

The Emerson KJ4003X1-BH1 is widely installed in:

• Oil & Gas Production Facilities
• Petrochemical Plants
• Chemical Processing Plants
• Power Generation Stations
• Combined Cycle Power Plants
• Water & Wastewater Treatment Plants
• Pharmaceutical Manufacturing
• Food & Beverage Processing
• Pulp & Paper Mills
• Mining Operations
• Steel Manufacturing Plants
• Marine Automation Systems
• Renewable Energy Facilities
• Industrial Process Automation
• Large Distributed Control Systems

Its flexible LocalBus extension capability makes it ideal for DeltaV installations requiring dependable cabinet expansion and long-term communication reliability.

Installation and System Integration

Proper installation ensures reliable communication and long-term cable performance.

Recommended installation procedures include:

• Verify compatibility with DeltaV S-Series Horizontal Carriers before installation.
• Disconnect system power before connecting or disconnecting the cable.
• Avoid routing the cable alongside high-voltage power wiring.
• Prevent excessive bending and cable tension during installation.
• Secure both 22-pin connectors completely before energizing the system.
• Maintain proper cable management within the control cabinet.
• Verify LocalBus communication during system commissioning.
• Include the cable in scheduled preventive maintenance inspections.

Following these practices helps maximize communication stability while extending cable service life.

Compatible System Components

The Emerson KJ4003X1-BH1 commonly operates together with:

• Emerson DeltaV S-Series Horizontal Carriers
• Emerson DeltaV M-Series Controllers
• Emerson DeltaV S-Series Controllers
• Emerson KJ4005X1-BB1 Left Extender
• Emerson KJ4005X1-BC1 Right Extender
• Emerson KJ1501X1-BC3 System Power Supply
• Emerson KJ2003X1-BB1 Controller Module
• Emerson KJ3222X1-BA1 Analog Input Module
• Emerson KJ3221X1-BA1 Analog Output Module
• Emerson KJ3002X1-BG2 Discrete Input Module
• Emerson KJ3001X1-BB1 Discrete Output Module
• Emerson DeltaV Workstations
• Emerson DeltaV Engineering Station
• Emerson DeltaV Operator Station
• Emerson DeltaV Communication Infrastructure

Together, these components establish a complete distributed automation platform capable of delivering reliable communication, flexible system expansion, high-speed process control, and long-term industrial performance.

Recommended Alternative Models

Key Advantages

• High-speed LocalBus communication
• Excellent signal integrity
• Industrial-grade shielded construction
• Reliable 22-pin connector design
• Flexible cabinet installation
• Strong resistance to electromagnetic interference
• Plug-and-play integration
• Optimized for DeltaV S-Series systems
• Long operational service life
• Designed for continuous industrial operation

Technical FAQs

What is the primary function of the Emerson KJ4003X1-BH1?

The KJ4003X1-BH1 extends the LocalBus connection between DeltaV S-Series Horizontal Carriers, providing reliable communication and power continuity while supporting flexible cabinet layouts.

Which systems use the KJ4003X1-BH1?

The cable is specifically designed for the Emerson DeltaV Distributed Control System, particularly DeltaV S-Series Horizontal Carrier installations.

What equipment commonly works with this cable?

The KJ4003X1-BH1 is commonly installed with DeltaV S-Series Horizontal Carriers, Left and Right Carrier Extenders, DeltaV Controllers, I/O Carriers, Power Supplies, Engineering Stations, Operator Workstations, and DeltaV communication infrastructure, forming a reliable distributed control network.

Conclusion

The Emerson KJ4003X1-BH1 Single Carrier Extender Cable is an essential communication accessory within the Emerson DeltaV Distributed Control System. By providing reliable LocalBus extension, excellent signal integrity, industrial-grade shielding, and flexible cabinet installation, it supports stable controller communication, simplifies system expansion, and enhances the long-term reliability of industrial automation systems.

Featuring a 1.1-meter cable length, rugged industrial construction, and a shipping weight of 3 kg, the Emerson KJ4003X1-BH1 is ideally suited for power generation, oil and gas, petrochemical processing, pharmaceutical manufacturing, water treatment, and other demanding industrial automation applications requiring dependable communication and continuous system availability.