Honeywell 51304511-200 UCN Redundant NIM Modem Network Interface Card For TDC3000 DCS System
- Product Code: 51304511-200
- Availability: In Stock
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Application Attributes：Honeywell 51304511-200 UCN Redundant NIM Modem Network Interface Card For TDC3000 DCS System
Honeywell 51304511-200 UCN Redundant NIM Modem Network Interface Card For TDC3000 DCS System
Manufacturer: Honeywell Process Solutions
Model Part No.: 51304511-200 (NIM Modem Paddle Card, alternative PN: 51304511200)
Product Type: Backplane plug-in UCN network communication modem board, core sub-board of NIM Network Interface Module
Matching System: Honeywell TDC3000 classic distributed control system, UCN Universal Control Network backbone communication component
Core Function: Real-time data transceiver for UCN dual redundant A/B network cables, UCN signal modulation/demodulation, fault detection of network links, automatic switchover between redundant channels, data packet transmission coordination between LCN console, controller and field I/O nodes, complete network diagnostic LED indicators
1. Product Overview
51304511-200 is a dedicated UCN modem daughter board developed by Honeywell as the core signal processing unit of the NIM (Network Interface Module) rack card for TDC3000 DCS. It is installed inside the main NIM module and directly connected to dual redundant UCN A and B coaxial network cables to complete encoding and decoding of UCN proprietary control network signals.
This board undertakes all underlying physical layer communication tasks of the UCN bus, including real-time receiving process data from field controllers and I/O nodes, uploading data to LCN operator stations, and issuing control commands downwards. Built-in link fault detection circuit continuously monitors cable open circuit, short circuit and signal attenuation abnormalities; once the active network path fails, it triggers seamless automatic switching to the standby redundant channel without interrupting industrial process control.
Equipped with multi-group status LED indicators for rapid on-site troubleshooting of network communication failures. It can only work when matched with a complete NIM mainboard and TDC3000 system backplane, and cannot run independently as a single communication card. Widely used in thermal power, petrochemical, oil & gas refining TDC3000 control cabinets as the key network bridge connecting all UCN field control nodes and upper monitoring stations.
This component belongs to legacy spare parts for discontinued TDC3000 systems, mainly supplied as refurbished, surplus or remanufactured boards for factory system maintenance and replacement.
2. Complete Technical Specifications
• Network Bus Standard: Honeywell proprietary UCN Universal Control Network, coaxial cable physical layer transmission
• Redundancy Architecture: Dual A/B fully redundant network channel support, automatic non-stop path switchover
• Communication Rate: Standard UCN bus fixed transmission rate 1.25Mbps real-time process data transmission
• Signal Processing Function: UCN signal modulation, demodulation, noise filtering, signal amplitude amplification and compensation
• Fault Diagnosis Circuit: Real-time detection of cable break, short circuit, signal loss, over-attenuation, module hardware error
• Diagnostic Indicators: Power supply OK, UCN A active, UCN B standby, link fault, data transmit/receive activity LED lights
• Backplane Interface: Standard NIM internal gold finger edge connector, matched with TDC3000 rack backplane bus
• Power Supply: +5VDC / +12VDC supplied by NIM mainboard backplane, typical power consumption 4.8W
• Operating Temperature: Industrial grade -10℃ ~ +60℃ continuous cabinet operation with ventilation
• Storage Temperature: -40℃ ~ +85℃; Relative Humidity: 5% ~ 95% RH non-condensing
• Mechanical Size: Plug-in paddle sub-board, 152mm(H) × 93mm(W) × 16mm(D), net weight approx 0.25kg
• Surface Protection: Conformal coated PCB, gold-plated corrosion-resistant contact fingers, dustproof IP20 circuit side
• System Compatibility: Full compatibility with all TDC3000 NIM rack modules, LCN console, PM/APM process controllers, I/O field terminal assemblies
• Safety Certifications: CE industrial EMC, UL recognized component certification, compliant with IEC 61000 industrial anti-interference standards
3. Core Hardware Advantages
1. Dual redundant UCN channel hardware design, zero downtime automatic network switching to avoid production shutdown caused by single cable failure
2. Integrated signal filtering and amplification circuit, stable transmission under high EMI dense multi-card cabinet industrial environments
3. Full real-time network fault self-detection, visual LED alarm without professional testing equipment for fast maintenance
4. Compact sub-board plug-in structure, easy disassembly and replacement without removing the entire NIM main module from the rack
5. Optimized UCN signal modulation algorithm, low data packet loss rate to guarantee high-precision real-time process control signal synchronization
4. Typical Application Scenarios
• Thermal power plant TDC3000 DCS UCN backbone network communication core sub-board for boiler and turbine control racks
• Petrochemical refinery distributed control system redundant UCN network modem signal processing unit
• Oil & gas upstream/downstream process plant UCN field controller interconnection communication module
• Chemical plant reaction process safety control system NIM internal network signal conversion daughter card
• Offshore platform industrial DCS TDC3000 redundant network communication spare core component
Honeywell © 51304511-200 UCN Redundant NIM Modem Sub Board For TDC3000 Distributed Control System