Description
Overview
The KJ4002X1‑BF2 (12P3866X012) Bus Extender Cable from Emerson is a dedicated communication link designed for DeltaV M‑series I/O architectures. It provides stable, low‑loss data transmission between remote I/O carriers and controller nodes, supporting long‑distance signal extension within distributed control system (DCS) environments.
Key Features
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Engineered for DeltaV M‑series subsystem expansion
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High‑conductivity copper conductors for reduced attenuation
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Optimized shielding to minimize EMI/RFI interference
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Factory‑terminated connectors for consistent electrical performance
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Suitable for extended‑distance cabinet‑to‑cabinet communication
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Designed for continuous operation in harsh industrial environments
Technical Specifications
| Parameter |
Specification |
| Model / Part Number |
KJ4002X1‑BF2 / 12P3866X012 |
| Product Type |
DeltaV Bus Extender Cable |
| Compatible System |
DeltaV M‑series I/O Subsystem |
| Cable Length |
136 cm |
| Operating Temperature |
−40°C to +70°C |
| Conductor Material |
High‑grade copper |
| Connector Types |
M12 industrial connector / RJ45 interface |
| Compliance |
CE, UL |
| Weight |
0.5 kg |
| HS Code |
8537101190 |
| Country of Origin |
USA |
| Application Layer |
Ethernet‑based communication |
Application Scenarios
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Expansion of DeltaV M‑series I/O banks
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Long‑distance cabinet interconnection in process plants
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Industrial environments requiring high‑reliability signal transmission
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Facilities with temperature‑extreme operating conditions
Functional Notes
This cable is designed to maintain signal integrity across extended distances within DeltaV architectures. Its shielding and conductor quality reduce noise susceptibility, making it suitable for refineries, chemical plants, and other electrically noisy environments.
FAQ
Q: Is the cable compatible with legacy DeltaV systems? A: Yes. It supports M‑series I/O and is backward‑compatible with standard DeltaV bus extender interfaces.
Q: Can this cable be used for non‑DeltaV Ethernet networks? A: It is engineered specifically for DeltaV bus extension and should not be used as a general‑purpose Ethernet cable.
Q: Is the product still in production? A: No. Emerson discontinued this model on December 31, 2018, but it remains widely used in existing installations.
