Product Overview

The Emerson KJ4001X1-HA1 (Part Number 12P0949X042) is a specialized communication link designed for the DeltaV™ Distributed Control System (DCS) and DeltaV SIS™ safety systems. This Localbus Extender Cable is essential for expanding the physical footprint of the system, enabling the connection between I/O carriers and controllers when they are not mounted on the same backplane. It facilitates the high-speed transfer of process data and control signals, ensuring that distributed I/O modules remain fully synchronized with the central control logic.

Rated at 12 VDC with a current draw of 150 mA, this extender cable maintains the electrical integrity of the LocalBus over distance. It is engineered to support the modularity of the DeltaV architecture, allowing for flexible cabinet layouts and system expansions in complex industrial environments.

Technical Performance and Environmental Resilience

Designed to meet the rigorous demands of process automation, the KJ4001X1-HA1 is built to withstand chemical and mechanical stressors commonly found in industrial facilities.

• Enhanced Signal Integrity: The cable is shielded to prevent electromagnetic interference (EMI) from disrupting high-speed data packets across the LocalBus extension.

• Corrosive Protection: Built to comply with ISA-S71.04-1985 Airborne Contaminants Class G3, making it ideal for use in refineries and chemical plants where corrosive gases are present.

• Shock and Vibration Resistance: Rated to endure 10g half-sinewave shocks and 1mm peak-to-peak vibration (5 to 16Hz), ensuring reliable connectivity on turbine decks or near heavy reciprocating machinery.

• Thermal Range: Operates consistently in ambient temperatures from 0°C to 60°C, suitable for standard industrial control rooms and marshalling cabinets.

• IP20 Enclosure Rating: Provides protection against solid foreign objects while ensuring the necessary airflow for heat management within the module housing.

Technical Specifications

• Manufacturer: Emerson (Fisher-Rosemount)

• Model Number: KJ4001X1-HA1

• Part Number: 12P0949X042

• Module Type: Localbus Extender Cable

• Nominal Voltage: 12 VDC

• Operational Current: 150 mA

• Humidity Tolerance: 5% to 95% (Non-condensing)

• Physical Dimensions: 12.1 cm x 5.2 cm x 16.6 cm

• Unit Weight: 0.34 kg

• Product Origin: USA

Industrial Application

The KJ4001X1-HA1 is a vital networking component for DeltaV installations in sectors requiring high availability and distributed I/O flexibility:

• Petrochemical & Refining: Extending I/O networks across large control rooms.

• Process Safety (SIS): Ensuring reliable communication for emergency shutdown systems.

• Power Generation: Connecting localized I/O carriers in expansive turbine halls.

• Pharmaceutical Manufacturing: Maintaining signal accuracy in validated clean-room control architectures.