Product Description

Model Definition

• 51305508‑200: Honeywell part number（‑200 = medium‑distance fiber version, conformal coated）.

• Alias: XLCNE2, XLCNE2 MM, LCN Extender Board.

• Breakdown:

  • 5130: Honeywell DCS hardware series.

  • 5508: XLCNE2 circuit design.

  • 200: Medium‑distance fiber optic interface, conformal coated.

Technical Specifications

• System Compatibility: Honeywell TDC 3000, Experion PKS (C300).

• Function: LCN fiber extension, segment interconnection, signal amplification.

• Interface: Dual fiber ports (multi‑mode, 100 Mbps).

• Power: 5 VDC, ≤500 mA.

• Isolation: 1500 VAC between channels and ground.

• Operating Temperature: 0 °C to +60 °C.

• Storage Temperature: −40 °C to +85 °C.

• Humidity: 5%–95% RH, non‑condensing.

• Dimensions: 120 mm × 60 mm × 15 mm.

• Weight: Approx. 0.15 kg.

• Certifications: CE, UL, CSA, RoHS compliant.

Interface & Communication

• Fiber Ports: 2 × multi‑mode fiber connectors (SC/ST), 100 Mbps, max 2 km.

• LCN Bus: Connects to LCN backbone via proprietary electrical interface.

• Diagnostics: LED indicators for power, link, activity, and fault.

• Redundancy: Supports redundant XLCNE2 pairs for high availability.

Core Functions

1. LCN Extension: Extends LCN over fiber to connect remote control rooms or racks.

2. Signal Regeneration: Amplifies and reshapes LCN signals to reduce attenuation.

3. Segment Isolation: Electrical isolation between LCN segments to prevent fault propagation.

4. Medium‑Distance Link: Optimized for 500 m–2 km multi‑mode fiber links.

5. Network Management: Reports link status and errors to the DCS engineer station.

Application Scenarios

• Large‑Scale DCS: TDC 3000 / Experion PKS with distributed control rooms.

• Process Industries: Oil & gas, chemical, power, petrochemical, pulp & paper.

• Remote I/O Racks: Connecting remote I/O cabinets to the main LCN network.

• High‑Reliability Plants: Facilities requiring isolated, long‑distance LCN communication.

Usage & Maintenance

Usage

1. Installation: Insert into dedicated XLCNE2 slot in the DCS cabinet; secure with screws.

2. Fiber Connection: Connect multi‑mode fiber to SC/ST ports; ensure Tx/Rx polarity.

3. Power: 5 VDC ±5%; verify power LED is on and no fault LEDs are lit.

4. Configuration: Set LCN segment ID and redundancy via engineer station.

Maintenance

• Environment: Keep cabinet clean, dry, 0–60 °C.

• Inspection: Monthly check of LED status; quarterly fiber connector cleaning.

• Cleaning: Use dry, lint‑free cloth for connectors; avoid liquid cleaners.

• Spare Parts: Store spares in anti‑static packaging in a cool, dry place.

• Repair: Do not disassemble; return faulty modules to Honeywell or authorized service centers。