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EMERSON KJ2201X1-JA1 DeltaV SIS process safety system
EMERSON KJ2201X1-JA1 12P3323X042 redundant terminal block. Brand New, Original Stock with Global Shipping for high-integrity safety instrumented loops.
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SKU: KJ4001X1-HC1 12P0831X072
Emerson KJ4001X1-HC1 12P0831X072 DeltaV M-Series LocalBus Left Extender
The Emerson KJ4001X1-HC1 (12P0831X072) is a DeltaV M-series LocalBus Left Extender designed to expand DCS I/O carrier configurations. It supports high-speed data continuity across the backplane, operates between -40°C and +70°C, and provides a robust, plug-and-play solution for extending LocalBus connectivity in industrial automation.
Technical Overview and System Expansion
The Emerson KJ4001X1-HC1 (part number 12P0831X072) serves as a critical infrastructure component for the DeltaV M-series Distributed Control System (DCS). This LocalBus Left Extender facilitates the physical and electrical expansion of the I/O subsystem by bridging communication between adjacent power and controller carriers. Because the DeltaV architecture relies on a continuous LocalBus for data exchange and power distribution, this module ensures that signals transition effectively across multi-carrier configurations.
Engineering Design and Signal Integrity
Emerson engineered the KJ4001X1-HC1 to maintain high-speed data transmission while resisting the electrical noise common in industrial environments. The module mounts specifically on the left side of the carrier to extend the bus interface to the preceding rack section. Furthermore, its robust construction allows it to operate reliably in harsh conditions, protecting the continuity of the DCS network. Since the module features a plug-and-play design, technicians can expand the system capacity without performing complex manual wiring or significant system re-engineering.
Key Technical Characteristics
- Brand: Emerson / Fisher-Rosemount
- Model Number: KJ4001X1-HC1
- Part Number: 12P0831X072
- Product Type: LocalBus Left Extender
- System Platform: DeltaV M-series I/O Subsystem
- Input Power: 5.0 VDC at 550 mA (Backplane)
- Operating Temperature: -40°C to +70°C (-40°F to +158°F)
- Relative Humidity: 5% to 95%, non-condensing
- Dimensions: 4.7 cm x 16.7 cm x 4.4 cm
- Weight: 0.14 kg
Installation and Hardware Compatibility
The KJ4001X1-HC1 integrates seamlessly with M-series 2-wide and 8-wide carriers. Due to its specialized “Left Extender” designation, it completes the bus connection on the leftmost edge of an expanded I/O assembly. Moreover, this module supports the DeltaV communication protocol natively, which guarantees that data packets from connected I/O modules reach the controller without latency or degradation. Its compact profile ensures that it fits within standard DIN-rail mounted enclosures while leaving ample space for field wiring.
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