Description
The Honeywell 51305896-200 (designated as the NIM Modem CE) is a specialized network interface paddle card engineered specifically for Honeywell’s legacy TDC 3000 Distributed Control System (DCS) architecture. Operating within the CE-compliant Network Interface Module (NIM), this board handles direct physical connections for the Universal Control Network (UCN) redundant cables (A and B). It efficiently consolidates and replaces multiple legacy hardware functions—including the Primary Network Module (PNM), PNM I/O, PNI I/O, and mini-coax assemblies—into a single, robust interface board.
📊 Product Parameters & Datasheet
- 🏷️ Model & Part Number: 51305896-200 (NIM Modem CE Paddle Card)
- 🏭 Manufacturer: Honeywell
- 💻 System Platform: Honeywell TDC 3000 / Local Control Network (LCN) & Universal Control Network (UCN)
- 🔌 Compatible Main Logic Board: EPNI (Enhanced Process Network Interface) board (such as model 51401583-100)
- 🌐 Network Connections: Dual coaxial interface connections for UCN cables A and B
- 🛡️ Compliance Rating: CE-compliant industrial automation hardware
- ⚙️ Replaced Legacy Components: PNM, PNM I/O, PNI I/O, and mini-coax assemblies from older NIM configurations
- 📏 Form Factor: Standard TDC 3000 NIM sub-rack paddle board format
- 🌍 Country of Origin: United States / Netherlands
- 🌡️ Operating Temperature Range: 0^{\circ}C to +60^{\circ}C (+32^{\circ}F to +140^{\circ}F) industrial standard
📘 Product Instructions
- Isolation: Ensure that all primary NIM node power feeds, cabinet power supplies, and network links are completely switched off, locked out, and tagged before handling card installation or extraction.
- Mounting: Carefully align and slide the 51305896-200 modem board into its designated slot within the CE NIM chassis, ensuring that it mates cleanly with the matching EPNI logic board backplane connectors without bending pins.
- Cable Termination: Securely attach the UCN coaxial network cables (Channel A and Channel B) to the board’s designated BNC or specialized connection ports, ensuring proper grounding and shielding to prevent signal attenuation.
- Verification: Check all hardware jumpers, node address configurations, and cable continuity against system engineering layout documentation prior to startup.
- Initialization: Restore power to the node chassis and verify normal operation, network synchronization, and communication status via the TDC 3000 Universal Station operator interface.
❓ Frequently Asked Questions (Q&A)
Q: What is the primary function of the Honeywell 51305896-200?
A: It serves as the NIM modem paddle card in CE-compliant Network Interface Modules, providing direct connection ports for redundant UCN network cables (A and B).
Q: Which legacy components does this modem board replace?
A: It consolidates and replaces several older NIM components, including the Primary Network Module (PNM), PNM I/O, PNI I/O, and mini-coax wiring structures.
Q: What main logic board does the 51305896-200 pair with?
A: It pairs directly as the CE I/O paddle board with the Enhanced Process Network Interface (EPNI) main logic board (such as part number 51401583-100).
Q: What troubleshooting steps should be taken if UCN network communication drops on the node?
A: Safely power down the rack, verify that the modem board is firmly seated against the EPNI logic board, inspect UCN coaxial cable connections for wear or loose fittings, and check node status diagnostics on the operator station.
🔥 Recommended Alternative Honeywell TDC 3000 & Legacy Series Models
- Honeywell 51305896-100 Non-CE Compliant NIM I/O Board Variant
- Honeywell 51401583-100 EPNI Main Logic Board
- Honeywell 51304511-200 Legacy NIM I/O Board
- Honeywell TDC 3000 Universal Station (US) Hardware Components
- Honeywell High-Performance Process Manager (HPM) Controller Cards
- Honeywell Module Housing and Power Supply Racks
- Honeywell Experion PKS Series C Architecture Controllers
- Honeywell Series 8 I/O Subsystem Modules
- Honeywell Safety Manager Controller Cards




