Description
The Emerson (formerly Honeywell) K4LCN-16 (Part Number: 51403519-160) is a specialized high-performance coaxial interface cable used primarily in Honeywell Experion PKS and TDC 3000 systems. It is designed to facilitate robust, high-speed data transmission across the Local Control Network (LCN), connecting various nodes such as Advanced Control Stations, Global User Stations, and Network Interface Modules (NIM).
Product Parameters (Datasheet)
- Model Number: K4LCN-16
- Part Number: 51403519-160
- Cable Type: RG-11 or specialized High-Grade Coaxial
- Length: 16 feet (approx. 4.8 meters)
- Connector Type: BNC (Male) at both ends with high-retention locking
- Impedance: 75 Ohms (standard for LCN data integrity)
- Shielding: Dual-shielded (Foil + Braided) to minimize EMI/RFI interference
- Jacket Material: Flame-retardant PVC or Plenum-rated (depending on specific sub-revision)
- Operating Temp: -20°C to +75°C
HONEYWELL K4LCN-16 51403519-160n03W31-s0082
Country of Origin
This specialized networking component is engineered and manufactured by Honeywell/Emerson in the USA, specifically for high-availability industrial control networks.
Application Fields
The K4LCN-16 is essential for maintaining the backbone of large-scale process control systems:
- Refining & Petrochemicals: Linking distributed controllers across vast plant areas in TDC 3000 architectures.
- Power Generation: Connecting turbine control processors to the central operator interface (LCN nodes).
- Pulp & Paper: Managing high-speed data exchange for paper machine section controls.
- Process Automation: Serving as the physical layer for peer-to-peer communication between Network Interface Modules (NIM) and History Modules (HM).
Product Usage Instructions
- Inspection: Verify that the BNC connectors are clean and free of oxidation. Check the cable jacket for any nicks or sharp bends.
- Installation: Connect the BNC ends to the LCN ports on the controller or workstation interface card. Ensure a “twist-and-lock” engagement to prevent accidental disconnection.
- Minimum Bend Radius: Do not bend the cable tighter than a 4-inch (100mm) radius to avoid internal reflection and signal attenuation.
- Network Topology: Ensure the cable is integrated into the LCN trunk or drop-line according to the system’s impedance-matching requirements. Note: LCN networks require proper termination (75-ohm terminators) at the physical ends of the segment.
- Testing: After installation, use the system diagnostics (e.g., Honeywell Network Statistic tools) to verify that the node is online without excessive CRC or framing errors.
Product Technical Description
The K4LCN-16 is a critical link in the Local Control Network (LCN), which is the high-level deterministic network used by Honeywell systems. Unlike standard Ethernet cables, the LCN coaxial cable is designed to handle a proprietary token-passing protocol that ensures time-critical data (like safety trips and real-time alarms) reaches its destination without collisions. The 51403519-160 part number specifically refers to the 16-foot variant, providing sufficient length for rack-to-rack or rack-to-console connections while maintaining precise electrical characteristics to prevent signal reflection. The cable’s heavy shielding is vital in industrial environments where high-voltage switchgear can otherwise cause significant data corruption.
Q&A (Common Questions)
- Q: Can I use a standard 75-ohm video cable instead of the K4LCN-16?
- A: No. While the impedance may match, the K4LCN series is built to industrial specifications for signal attenuation and shielding effectiveness required by the Honeywell LCN protocol.
- Q: What does the suffix “-160” in the part number represent?
- A: This typically denotes the factory-defined length (16.0 feet). Other suffixes like -300 or -500 would represent longer cable runs.
- Q: My system shows “LCN Error” after replacing this cable. What is wrong?
- A: Ensure the BNC connectors are fully locked. Also, check if you have accidentally disturbed the 75-ohm terminator at the end of the cable segment.
- Q: Is this cable compatible with Experion PKS?
- A: Yes, specifically for Experion systems that still utilize LCN-based hardware or bridges (like the ELCN).
Similar Model Recommendations
- Emerson K4LCN-30: 30-foot version of the same interface cable.
- Honeywell 51403519-100: 10-foot LCN coaxial cable.
- Honeywell 51304465-100: LCN Terminator (75-ohm).
- Honeywell 51403422-100: LCN Network Interface card component.
- Emerson K2LCN-xx: Older or alternate grade LCN cable variants.
For technical documentation or a quote on the Emerson K4LCN-16, please contact our process network specialists.
