51305072400
May 22, 2026

51305072400

The 51305072‑400 (CLCN‑A/B) is a redundant LCN I/O Paddle Board for Honeywell TDC3000/TPS DCS. It installs in 5‑slot/10‑slot I/O chassis, providing dual CLCN‑A/B ports, slide‑switch node addressing, and redundant LCN communication for high‑availability system control networks.

Description

Product Overview

The 51305072‑400 (CLCN‑A/B) is a redundant LCN I/O Paddle Board for Honeywell TDC3000/TPS DCS. It installs in 5‑slot/10‑slot I/O chassis, providing dual CLCN‑A/B ports, slide‑switch node addressing, and redundant LCN communication for high‑availability system control networks.

Basic Information

  • Part Number: 51305072400 (51305072‑400)

  • Module Type: CLCN‑A/B Redundant LCN I/O Paddle Board

  • Compatible System: Honeywell TDC3000 / TPS

  • Manufacturer: Honeywell

  • Country of Origin: USA

  • Weight: Approx. 0.16 kg (0.35 lb)

  • Certification: CE, UL

  • Status: Discontinued (original Honeywell; new/remanufactured available)

Technical Specifications

  • Network Interface: Dual CLCN‑A + CLCN‑B (redundant ports)

  • Node Address: Configurable via slide switches (not jumpers)

  • Power Supply: Powered by chassis backplane

  • Operating Temperature: ‑10°C to +55°C

  • Storage Temperature: ‑20°C to +70°C

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

  • Mounting: Dedicated slot in standard 5/10‑slot chassis

Key Features

  1. Redundant LCN Ports: Dual CLCN‑A/B interfaces for fault‑tolerant communication.

  2. Slide‑Switch Addressing: Easy, reliable node ID setup via front‑panel slides (no jumpers).

  3. Chassis Bus Bridging: Transfers data between I/O cards and redundant LCN network.

  4. High Availability: Enables seamless switchover between A/B networks if one fails.

  5. Diagnostic Support: Reports link status and network health to the TDC3000 system.

Application Scope

  • Industries: Power, chemical, oil & gas, pulp & paper, metallurgy (critical processes).

  • System Role: Redundant LCN communication hub for TDC3000/TPS I/O chassis.

  • Use Case: Installed in 5/10‑slot chassis where LCN redundancy is required (A/B active‑standby).

Installation & Wiring

  1. Power Off: De‑energize chassis before insertion/removal.

  2. Chassis Installation: Insert into dedicated slot and secure.

  3. CLCN Connections: Connect LCN‑A cable to Port A, LCN‑B cable to Port B.

  4. Address Setting: Use slide switches to set unique LCN node ID.

  5. ESD Protection: Wear anti‑static wristbands during handling.

Maintenance Requirements

  • Periodic Inspection: Check A/B cable connections and switch settings for looseness/corrosion.

  • Cleaning: Wipe dust with dry soft cloth; avoid liquid cleaners.

  • Replacement: Use original/authorized Honeywell parts; do not disassemble.

  • Fault Handling: Verify A/B cables and switch settings if communication fails; check system diagnostics.

Safety Notice

  • All wiring/maintenance must be performed with power disconnected.

  • Do not exceed rated temperature/humidity limits.

  • Unauthorized modification/disassembly is prohibited.

  • Comply with site safety rules and ESD procedures.


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