Product Description
Honeywell 51454493-126 is the I/O backplane for HPM (High Performance Process Manager), dedicated to Honeywell Experion LCN DCS system. It is the replacement part for older part number 51405098-100. Installed inside the HPM rack, it provides physical slots, backplane bus communication and power distribution for I/O cards, enabling data exchange between HPM controller and I/O modules. Rugged industrial PCB with conformal coating, supports hot-swappable I/O cards and hardware fault detection. It is widely used as replacement spare part for legacy LCN DCS systems in petrochemical, refinery and power plants. Obsolete by OEM, it is critical spare for system maintenance.
Specifications
- Part No.: 51454493-126
- Brand: Honeywell
- Product Type: HPM I/O Backplane
- Compatible System: Experion LCN DCS, HPM High Performance Process Manager Rack
- Replacement Part: 51405098-100
- Functions: I/O card slot carrier, backplane bus communication, power distribution, signal routing
- Mounting: Fixed installation inside HPM rack
- Supported Cards: HPM series AI/AO/DI/DO I/O modules
- Bus: LCN Local Control Network backplane bus
- PCB Protection: Conformal coating
- Operating Temperature: 0℃ ~ +60℃
- Storage Temperature: -40℃ ~ +85℃
- Protection Class: IP20 (for cabinet installation)
- Lifecycle Status: OEM obsolete, spare part for DCS maintenance
- Certifications: CE, compliant with industrial automation standards
Applications
- Petrochemical & Refinery Plants: HPM DCS cabinet backplane replacement, process control loop maintenance
- Natural Gas Processing Plants: HPM rack repair for LCN system, recovery of field I/O signal links
- Thermal & Gas Power Plants: Maintenance spare parts for boiler and turbine DCS control systems
- Chemical Plants: Emergency repair and spare inventory for continuous process DCS hardware
- Offshore Oil & Gas Platforms: Hardware replacement for legacy Experion LCN control systems
- System Integrators & MRO Vendors: Spares for overhaul and migration projects of Honeywell LCN systems
Series Related Part Numbers
51405098-100, 51402573-450, 51403698-100, 51304511-200
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