Description
Product Overview
The HONEYWELL 51402599-100 is a 15-slot SIOM I/O backplane set supplied with multiple Honeywell I/O modules and associated interface cables. The assembly is identified with JS-IOFX02 and is designed as a complete I/O hardware arrangement rather than a single standalone I/O card.
The set is associated with Honeywell/Yamatake-Honeywell control hardware and includes a 15-I/O backplane, I/O link interface components, analog and digital I/O modules, and interconnection cables. The exact module combination should be verified against the photographs and part-number labels before installation because 51402599-100 assemblies can appear with different revisions and module configurations.
This particular eBay listing is marked Used and identifies the assembly as Honeywell 51402599-100 I/O Backplane Set with Modules & Cable, with JS-IOFX02 shown as another part number. The listed country of origin is Japan and the shipping weight is approximately 31.160 kg.
Product Summary
HONEYWELL 51402599-100 is a 15-slot SIOM backplane assembly intended to organize and interconnect multiple I/O modules within a Honeywell control system.
The set is useful when replacing an existing backplane assembly or recovering an installed system where the complete I/O arrangement, including the associated modules and cables, needs to be maintained.
The available configuration information identifies modules for high-level analog input, digital input, digital input with sequence-of-events capability, digital output, and analog output. The assembly also includes an I/O Link Extender and associated cable assemblies.
Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | Honeywell |
| Main Part Number | 51402599-100 |
| Assembly Type | 15-Slot SIOM I/O Backplane Set |
| Related Identification | JS-IOFX02 |
| Associated Assembly | 80364413-001 |
| Backplane | 15-I/O SIOM Backplane |
| Backplane Revision in referenced configuration | Rev. B |
| Included I/O | Analog Input, Digital Input, Digital Input SOE, Digital Output, Analog Output |
| I/O Link | I/O Link Extender |
| Related I/O Link Assembly | 51304419-100 |
| Related 15-I/O File | 51401618-100 |
| Typical system hardware | Honeywell/Yamatake-Honeywell control system |
| Country of Origin | Japan |
| Listed Weight | Approx. 31.160 kg |
| Condition of supplied eBay item | Used |
The table reflects the configuration information associated with the referenced listing. Revision and module population should be checked against the actual assembly before ordering or replacement.
Included Hardware and I/O Configuration
The referenced 51402599-100 assembly is populated with several different types of Honeywell I/O hardware.
1. 15-Slot SIOM Backplane
The main assembly is identified as a 15 SIOM backplane with assembly number 51402599-100. It provides the physical mounting and electrical interconnection structure for the installed I/O hardware.
The backplane is also associated with 51402598-100 and the JS-IOFX02 identification. Related configurations list the 15-I/O file as 51401618-100.
2. I/O Link Extender
The assembly information identifies an I/O Link Extender, assembly number 51304419-100.
This hardware provides the interface between the I/O arrangement and the associated control-system communication structure. The related hardware listing identifies the extender with an Hdw K revision and associated board number 51304418.
3. High-Level Analog Input
The set includes a high-level analog input module identified by assembly number 51304754-150.
The associated identification includes HLAI2, with hardware and firmware revision markings recorded on the module. This type of module is used for bringing compatible analog process signals into the Honeywell I/O subsystem.
4. Digital Input
The configuration also contains a Honeywell digital input module, commonly identified with assembly number 51304485-100.
The associated references include 51304484 and hardware/firmware revision information. Honeywell documentation and secondary inventory records identify 51304485-100 as a digital input IOP.
5. Digital Input SOE
A Digital Input SOE module is included in the referenced configuration. The assembly number is 51402625-125.
This module is associated with sequence-of-events digital input processing. Other Honeywell inventory references identify 51402625-125 as a Digital Input Processor SOE / MC-PDIS12 type module.
6. Digital Output
The set includes a digital output module identified by assembly number 51304487-100, with related board number 51304486.
This provides digital output functionality for compatible Honeywell control-system applications. The exact channel arrangement should be confirmed from the installed module’s nameplate and revision.
7. Analog Output
The referenced set also lists an analog output module identified as 51309152-175, with related board number 51309151.
The module is identified as APM2 / A/O II in the available configuration information.
Cable and Interconnection Information
The assembly is supplied with associated Honeywell cable hardware. The referenced configuration includes cable assemblies identified with different lengths, including 2 m, 3 m, 4 m and 5 m references.
Examples include:
- 51201397-002 — 5 Meter
- J-KFTA03 — 3 Meter
- J-KFTA04 — 4 Meter
- J-KFTA05 — 5 Meter
- Associated FTA3 and CAB9 references
Because the cable arrangement is part of the complete assembly, it is recommended to compare connector positions and cable lengths with the existing installation before replacement.
System Integration
A backplane assembly such as 51402599-100 should be treated as a complete hardware arrangement.
Before installing a replacement, verify:
- Backplane assembly number
- Backplane revision
- Slot arrangement
- Individual I/O module part numbers
- Hardware revisions
- Firmware revisions where applicable
- Connector positions
- Cable part numbers
- Cable lengths
- Existing system configuration
Do not assume that two 51402599-100 assemblies are electrically identical simply because the main assembly number is the same. Available inventory records show Rev. B and Rev. D assemblies with different module populations, so the complete configuration matters.
Application Scenarios
The 51402599-100 assembly is suited to maintenance and spare-parts applications involving legacy Honeywell control-system I/O hardware.
Typical uses include:
- Replacement of a damaged SIOM backplane
- Restoration of an existing Honeywell I/O subsystem
- Spare hardware for plant maintenance
- Control-system shutdown maintenance
- Replacement of obsolete I/O assemblies
- System expansion where the existing hardware configuration matches
- Marine and industrial automation applications using compatible Honeywell control hardware
The combination of analog input, digital input, SOE input, digital output and analog output hardware makes the set useful where several process signal types are handled within the same I/O arrangement.
Installation Considerations
Installation should be performed by personnel familiar with the existing Honeywell control system.
Before removing an installed assembly, document the original slot arrangement and cable connections. Photographing every connector and recording the part number and revision of each installed module can prevent wiring errors during replacement.
Recommended procedure:
- Isolate the relevant control-system power according to site procedures.
- Record the position of every module.
- Label all field and interconnection cables.
- Verify the backplane and module part numbers.
- Compare the replacement module population with the original assembly.
- Check connector condition and cable routing.
- Install the backplane without forcing connectors or card guides.
- Reconnect the cables according to the original configuration.
- Verify grounding and cabinet connections.
- Perform system diagnostics before returning the control system to normal operation.
Maintenance
For long-term storage, keep the assembly in a clean, dry environment and protect exposed connectors from contamination and moisture.
Periodic inspection should include:
- Backplane connector condition
- Module locking hardware
- Cable insulation
- Cable connectors
- PCB contamination
- Corrosion or oxidation
- Loose hardware
- Damaged card guides
- Abnormal discoloration or overheating marks
For a used assembly, additional attention should be paid to connector wear and the condition of the individual modules because the main part number alone does not describe the complete hardware population.
Replacement and Compatibility
The best replacement strategy is a configuration-to-configuration comparison.
A potential replacement should match:
51402599-100 → backplane assembly
JS-IOFX02 → related identification
51401618-100 → 15-I/O file reference
51304419-100 → I/O Link Extender
Then verify every installed I/O module individually.
For example, 51402625-125 is identified as a Honeywell Digital Input SOE module, while 51304485-100 is identified as a Digital Input IOP. These should not be treated as interchangeable simply because both occupy I/O positions in the same general system.
This is particularly important for legacy Honeywell installations where hardware revisions and firmware versions may differ.
Inspection Before Shipment
For a complete I/O backplane set, inspection should cover the entire assembly rather than only the main backplane.
Recommended inspection checklist:
- Verify 51402599-100 marking
- Verify JS-IOFX02 identification
- Photograph all module labels
- Record every assembly number
- Record hardware and firmware revisions
- Check all I/O slots
- Inspect PCB surfaces
- Check connectors and card edges
- Inspect cables and plugs
- Check cable lengths
- Check for corrosion
- Confirm no broken card guides
- Confirm mounting hardware
- Power/test where the required Honeywell test environment is available
A module-by-module inspection report is preferable for a large assembly such as this because the supplied set contains multiple individual components.
Condition
The specific eBay listing supplied for this product is Used. The listing identifies the item as an I/O Backplane Set with Modules & Cable, part number 51402599-100, JS-IOFX02, with a listed weight of approximately 31.160 kg.
Please do not describe this particular item as New Surplus unless the actual inventory condition has been independently verified.
FAQ
What is Honeywell 51402599-100?
It is a Honeywell 15-slot SIOM I/O backplane assembly used with a collection of compatible I/O modules and interconnection hardware.
Does it include I/O modules?
The referenced listing is specifically for a backplane set with modules and cable. The associated configuration includes analog input, digital input, digital input SOE, digital output and analog output hardware.
What is JS-IOFX02?
JS-IOFX02 is a related identification shown with the Honeywell 51402599-100 SIOM backplane assembly.
Is 51402599-100 a single I/O card?
No. It is better described as a complete I/O backplane/set assembly. Individual I/O modules within the set have their own assembly and board numbers.
Can any 51402599-100 assembly replace another?
Not automatically. Different revisions and module populations are documented, so the complete configuration should be compared before replacement.
What should I verify before purchasing?
Check the main part number, revision, installed module part numbers, hardware/firmware revisions, connector arrangement and included cables against your existing installation.
Search Terms
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