Emerson KJ4002X1-BF2 DeltaV Bottom Local Bus Extender Cable Assembly

1. Product Overview

The KJ4002X1-BF2 (alternative part number: 12P3866X012) is a professional bottom-type Local Bus extender cable assembly customized for Emerson DeltaV DCS systems. Different from board-type left and right bus extender modules, this product adopts integrated cable assembly structure, realizing bus signal and power interconnection through bottom rack bridging. It serves as a key connecting component for multi-rack combination installation and stacked I/O cabinet layout, solving bus disconnection and power transmission obstacles between upper and lower racks. With industrial-grade tensile and anti-aging performance, it ensures stable LocalBus communication synchronization and continuous power supply for combined I/O frames, widely used in compact stacked cabinet deployment and modular DeltaV system expansion projects.

2. Core Product Features

1. Unique Bottom Bridge Bus Connection Design Adopting bottom rack docking mode, the extender cable realizes hidden bus interconnection between stacked or adjacent I/O racks. Unlike side expansion modules suitable for horizontal extension, this bottom bridging structure optimizes vertical multi-layer cabinet layout, making the overall cabinet arrangement neater and more standardized while reserving side expansion space for other functional modules.

2. Integrated Signal & Power Synchronous Transmission The high-precision cable assembly integrates LocalBus signal lines and power transmission lines, supporting one-step completion of data interaction and bus power supply between racks. It avoids the need for separate signal wiring and power bridging, simplifies on-site construction procedures, and effectively reduces wiring errors and hidden faults caused by complex circuit connections.

3. Industrial High-strength Durable Structure Built with wear-resistant and tensile industrial cable materials and high-precision pin connectors, the assembly features excellent anti-aging, anti-bending and anti-vibration capabilities. It adapts to long-term vibration and temperature fluctuation in industrial cabinet operation, preventing poor contact and signal interruption caused by cable aging or plug loosening.

4. Strict EMC Anti-interference & Stable Transmission Equipped with integral shielding layer and internal signal balance processing technology, the cable effectively suppresses external electromagnetic interference and internal signal crosstalk. It maintains error-free and low-latency bus data transmission during long-term cascaded rack operation, ensuring real-time synchronization of the entire DeltaV control network.

5. Plug-and-play Easy Deployment & Strong Compatibility Standard dedicated connector design supports fast plug-and-play docking, no complicated parameter configuration required. It is fully compatible with all standard DeltaV I/O racks and bus functional modules, suitable for new stacked cabinet construction and old system vertical rack expansion renovation.

3. Technical Specifications

• Model: KJ4002X1-BF2

• Alternative Part Number: 12P3866X012

• Product Type: DeltaV Bottom Local Bus Extender Cable Assembly

• Function: Vertical rack bus signal and power bridging

• Connector Specification: Industrial dedicated precise docking terminal

• Bus Adaptation: Standard DeltaV LocalBus protocol

• Rated Power Supply: 5VDC, 1.4A rated load capacity

• Operating Temperature: -40℃ ~ +70℃

• Working Humidity: 5%~95% RH, Non-condensing

• Environmental Grade: ISA-S71.04 G3 airborne contaminant resistant

• Vibration Resistance: 1mm peak-peak (5-16Hz), 0.5g (16-150Hz)

• Shock Resistance: 10g half-sine wave shock resistance

• Protection Grade: IP20 (cabinet internal application)

• Applicable Structure: Vertical stacked racks, adjacent cabinet bridging

• Compatible System: Full series Emerson DeltaV DCS systems

• Net Weight: 0.14kg

4. Industrial Application Scenarios

1. Vertical stacked I/O rack bus connection for compact DeltaV control cabinets in petrochemical plants

2. Multi-layer cabinet bridging and bus synchronization for oil and gas field station modular control systems

3. Dense rack layout bus expansion and power interconnection for thermal power plant DCS control rooms

4. Hidden wiring optimization and vertical space utilization for environmental protection water treatment automation cabinets

5. Vertical rack expansion and bus architecture optimization for renovated old DeltaV systems with limited horizontal space