EMERSON KJ4001X1-NA1 12P3373X012 DeltaV Dual Extenders

Configured for horizontal LocalBus signal extension in DeltaV systems, the Emerson KJ4001X1-NA1 (12P3373X012 Dual Right Cable Extender) provides direct physical/electrical execution.

Hardware Specifications

4-20 mA HART and Channel Isolation Protocols

The extender architecture incorporates isolated power distribution to supply conditioned and regulated voltage to downstream I/O modules. Galvanic and optical isolation mechanisms safeguard central processing units from ground loop currents, common-mode line transients, and electromagnetic interference (EMI). Channel-to-channel and system isolation protocols are strictly maintained across extended bus pathways, ensuring deterministic LocalBus signal routing and uncorrupted 4-20 mA HART communication pass-through across multi-carrier layouts.

Frequently Asked Questions

Q: Does this dual cable extender support hot-swapping during live system operation?

A: Yes, when deployed in redundant pairs, the module supports live extraction and replacement without shutting down power or interrupting active LocalBus communications.

Q: How does the module communicate operational health to the control system?

A: The extender features onboard diagnostic circuits that continuously monitor internal health and supply voltage outputs, transmitting diagnostic telemetry back to the DeltaV software environment.

Q: What mounting protection rating applies to this extender assembly?

A: The physical housing carries an IP20 ingress protection rating and requires installation within a protective enclosure.

Field Installation Guidelines

1. Mount the extender securely on standard DIN rails within the control enclosure, verifying solid earth ground bonding.
2. Connect LocalBus interface cables to adjacent expansion carriers without exceeding recommended bus length limits.
3. Route signal and bus cables away from high-voltage AC lines and power switching components to minimize electromagnetic noise coupling.
4. Verify that total secondary load draw on the isolated power bus remains within specified system limits before powering up.
5. Ensure cabinet airflow and enclosure design maintain ambient conditions compliant with ATEX, IECEx, and FM hazardous location standards.