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Match the complete marking
Include 51305072-400 and any revision or assembly number visible on the item. Keep the exact reference on your enquiry and quotation.
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Check the offered item before ordering
Request available label and connector photos. Have your maintenance team compare the offered 51305072-400 with the installed equipment and applicable Honeywell documentation.
Technical specifications for 51305072-400
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Manufacturer:Honeywell
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Product Category:DCS Systems
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Spare Part Number:51305072-400
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Weight:0.14 kg
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Tariff Code:8537101190
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Interface family:CLCN A/B
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Associated processors:K2LCN / K4LCN, matched host configuration
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Network relationship:LCN node connection
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Board role:Rear network I/O interface
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Processor distinction:Separate from the front node processor
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Address configuration:One approved selection location
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Mechanical compatibility:Host and rear-card version dependent
Information
Overview
Downloads
Applications / Compatibility
Product Precautions
- LCN maintenance with 51305072-400 requires the rear I/O interface, node processor and address configuration to remain matched.
Function: CLCN A/B I/O interface
Processor relationship: Matched K2LCN or K4LCN node
Installation: Host-specific rear I/O assembly
Processor relationship: Matched K2LCN or K4LCN node
Installation: Host-specific rear I/O assembly
The CLCN A/B I/O board provides the network connection associated with the K2LCN or K4LCN node processor. Preserve the complete 51305072-400 identity and match its rear I/O assembly to the installed host. The processor and interface board serve different functions and must be selected as a compatible node arrangement.
The host architecture separates the front processor board from the rear network-interface board. In the WDA History Module, the network path feeds the processor, while separate peripheral-controller and drive-interface hardware handles storage. This architecture describes the host relationship and does not make the CLCN board a disk controller or a general-purpose field I/O module.
LCN node-address configuration must remain consistent across the processor and its interface. Use the approved selection location and neutralize the unused location according to the actual jumper or switch implementation. Rear-card mechanical versions are not automatically interchangeable; retain connector arrangement, revision and chassis fit, then verify both intended LCN paths after controlled maintenance.
The host architecture separates the front processor board from the rear network-interface board. In the WDA History Module, the network path feeds the processor, while separate peripheral-controller and drive-interface hardware handles storage. This architecture describes the host relationship and does not make the CLCN board a disk controller or a general-purpose field I/O module.
LCN node-address configuration must remain consistent across the processor and its interface. Use the approved selection location and neutralize the unused location according to the actual jumper or switch implementation. Rear-card mechanical versions are not automatically interchangeable; retain connector arrangement, revision and chassis fit, then verify both intended LCN paths after controlled maintenance.
Controller platform reference: CLCN A/B node interface. Match the installed hardware and configuration.
Technical downloads for 51305072-400: an original Honeywell reference excerpt and an Apter Power installation planning guide.
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Honeywell 51305072-400 technical reference
Original Honeywell excerpt - PDF, 4 pages, 16.1 KB. UX13-530 identifies 51305072-400 as CLCN A/B. The described host relationships apply to the CLCN A/B architecture; no -100 certification or address-switch layout is assigned to the offered -400 board. -
Honeywell 51305072-400 installation planning guide
Prepared by Apter Power - PDF, 5 pages, 96 KB. Identity, configuration, connection and controlled acceptance planning.
UX13-530 identifies 51305072-400 as CLCN A/B. The described host relationships apply to the CLCN A/B architecture; no -100 certification or address-switch layout is assigned to the offered -400 board. The planning guide is prepared by Apter Power; apply the complete manufacturer instructions and the stated applicability boundaries.
System and supply context: UX13-530 identifies 51305072-400 as CLCN A/B. The described host relationships apply to the CLCN A/B architecture; no -100 certification or address-switch layout is assigned to the offered -400 board. Accessories are included only when itemized in the quotation.
Platform applications: The following applications describe CLCN A/B node interface functions. Match the complete 51305072-400 identity to the installed system before selecting a replacement.
Platform applications: The following applications describe CLCN A/B node interface functions. Match the complete 51305072-400 identity to the installed system before selecting a replacement.
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LCN node connection
Maintain the network-interface relationship between the rear I/O assembly and the matched node processor. -
Host maintenance
Preserve the rear-card and front-processor pairing when restoring the host node. -
Address coordination
Keep the selected address location and unused-board neutralization consistent. -
Communication recovery
Verify the configured node and intended network paths after controlled replacement.
Prepare 51305072-400 against the installed configuration and applicable Honeywell instructions. Plan isolation and the resulting interruption of system operation before replacement.
Retain the exact suffix
Match 51305072-400; do not infer interchangeability with another CLCN suffix.
Check rear-card fit
Compare the host chassis, connector arrangement and rear-card mechanical version.
Match the processor
Confirm the installed K2LCN or K4LCN pairing and host configuration.
Record address selection
Preserve the actual jumper or switch implementation and active selection location.
Plan network interruption
Assess the host and process impact before disconnecting network hardware.
Verify both network paths
Confirm the intended LCN communication paths and node identity before release.
Alternative Names
51305072 400
Honeywell 51305072-400
Technical notes
Installation relationship: The host architecture separates the front processor board from the rear network-interface board. In the WDA History Module, the network path feeds the processor, while separate peripheral-controller and drive-interface hardware handles storage. This architecture describes the host relationship and does not make the CLCN board a disk controller or a general-purpose field I/O module.
Configuration: UX13-530 identifies 51305072-400 as CLCN A/B. The described host relationships apply to the CLCN A/B architecture; no -100 certification or address-switch layout is assigned to the offered -400 board.
Technical reference: Honeywell Universal StationX (Ergonomic) Service, UX13-530, Release 521 Revision 05; History Module Service, HM13-501, December 2002.
FAQ View All FAQ
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What function does 51305072-400 perform?It is a CLCN A/B I/O interface for the network connection of a matched LCN node.
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Which processor families are associated with 51305072-400?The CLCN A/B host architecture is associated with K2LCN and K4LCN processors; the actual board and host revisions must match.
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Is 51305072-400 itself the node processor?No. It is the rear network-interface board; the front processor is a separate assembly.
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Is 51305072-400 a disk controller?No. In the History Module architecture, separate peripheral-controller and drive-interface assemblies handle the disk path.
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What address-selection rule matters when replacing 51305072-400?Retain one approved address-selection location and neutralize the unused location according to the actual board implementation.
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Are all rear I/O versions interchangeable with 51305072-400?No. Rear-card mechanical and compliance versions can differ physically. Match the installed host, connector arrangement and complete assembly marking.
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Does 51305072-400 imply the certification of a different CLCN suffix?No. A certification or mechanical designation for another suffix must not be transferred to 51305072-400.
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What network checks follow replacement of 51305072-400?Verify the intended LCN paths, configured node identity and host communication before returning the node to normal service.
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