Description
The Honeywell 51305072-300 (designated as the CLCN-B) is a CE-compliant Coaxial Local Control Network “B” I/O paddle board engineered specifically for Honeywell’s legacy TDC 3000 and TotalPlant Network (TPN) architectures. Installed within dual-node chassis environments, this interface board provides the physical connection point between node-level communication processors and the redundant LCN Cable B backbone. By working alongside its companion CLCN-A board (Cable A), it ensures fault-tolerant, high-integrity data exchange and continuous synchronization across complex industrial control loops.
📊 Product Datasheet & Technical Parameters
| Parameter Name | Technical Specification Value |
| Model Designation / Part Number | Honeywell 51305072-300 (CLCN-B) |
| Manufacturer | Honeywell Process Solutions |
| System Platform | TDC 3000 / TotalPlant Network (TPN) Architecture |
| Module Category | LCN Coaxial Cable “B” Interface / Paddle Board |
| Compliance Marking | CE Compliant (Conformité Européenne) |
| Network Medium | Coaxial LCN Cable B (Identified by green shrink-fit connector bands) |
| Connector Type | BNC Tee Connectors (Part No. 51190728-105 compatible) |
| Chassis Compatibility | Dual-Node Chassis / 5-Slot & 10-Slot LCN Rack Backplanes |
| Operating Temperature Range | 0°C to +60°C (+32°F to +140°F) |
| Origin of Manufacture | United States / USA |
⚙️ Product Usage Instructions
🔌 Secure Chassis Installation: Ensure the target dual-node chassis is completely de-energized before carefully sliding and seating the 51305072-300 board into its designated backplane slot, ensuring solid pin engagement.
🔗 Cable Identification & Connection: Attach the LCN Cable B coaxial line to the front BNC tee connector, verifying that the green shrink-fit identification band matches proper network routing standards to prevent cross-connection with Cable A.
⚡ Live Isolation Maintenance: Utilize the modular BNC tee design to safely disconnect or isolate a single node from the coaxial segment during maintenance without disrupting data transmission across other network nodes.
💻 Diagnostic Verification: Energize the system and check node communication status indicators via the station console to confirm healthy network synchronization and error-free packet delivery on the B-link.
❓ Frequently Asked Questions (Q&A)
❓ Q1: What is the primary function of the Honeywell 51305072-300 module?
✅ A1: It serves as the CLCN-B paddle board that interfaces TDC 3000 node electronics with the redundant LCN Cable B coaxial network backbone.
❓ Q2: How can you visually distinguish Cable A and Cable B connections?
✅ A2: Cable A connections are typically marked with yellow shrink-fit bands, while Cable B connections utilized by this board are marked with green bands.
❓ Q3: Can a node be disconnected from the network without bringing down the entire LCN segment?
✅ A3: Yes, the BNC tee connectors integrated into the system allow individual nodes to be disconnected from the coaxial line without disrupting communication among other active nodes.
🔍 Recommended Alternative Series and Models
- Honeywell 51305072-200 (CLCN-A CE-Compliant LCN Cable A Board)
- Honeywell 51304542-100 (LCN A Cable Interface Converter Board / KLCN_CA)
- Honeywell 51304543-100 (LCN B Cable Interface Converter Board / KLCN_CB)
- Honeywell TDC 3000 Universal Station Processor (USP) Modules
- Honeywell TDC 3000 History Module (HM) Peripherals
- Honeywell TC-CCR012 (Redundant ControlNet Interface Module)
- Honeywell ControlEdge C300 Controller Unit
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- Honeywell Analytics System 57 Control Cards
