Emerson KJ4001X1-NA1 Cable Extender Module

The Emerson KJ4001X1-NA1, also cataloged as the KJ4001X1-NA1 Cable Extender Module, operates as a dedicated hardware component for LocalBus extension and power distribution within Emerson DeltaV platforms.

Hardware Specifications

Fieldbus Communication & DCS Processing Interface

• 4-20 mA HART & LocalBus Signal Integrity: Extends high-speed backplane communications across multi-carrier DeltaV nodes while preserving analog signal integrity for downstream 4-20 mA HART loops.
• FOUNDATION Fieldbus Bus Coexistence: Maintains deterministic LocalBus timing and low-latency packet transmission across extended rack segments housing fieldbus communication modules.
• Channel-to-Channel Isolation Performance: Provides internal shield continuity and noise immunity to suppress common-mode electrical transients across extended carrier backplane buses.

Frequently Asked Questions

Q: What is the maximum current capacity supported across the LocalBus extender?

A: The KJ4001X1-NA1 module is rated to pass a maximum current of 8 A at 12.6 VDC across the extended backplane rail.

Q: What physical orientation and form factor does this extender card utilize?

A: The module is configured as a Dual Right LocalBus cable extender for connecting adjacent DeltaV carrier assemblies.

Field Installation Guidelines

• Verify that main cabinet and carrier bus power are completely de-energized before connecting or disconnecting LocalBus extender assemblies.
• Align the extender module connectors precisely with the carrier bus edge sockets to prevent mechanical damage to backplane pin arrays.
• Ensure all extender cable retention screws and grounding clips are fully tightened to maintain continuous shield continuity.
• Route extender ribbon and bus cables within designated wire channels to prevent mechanical stress and interference from nearby power wiring.