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Product Overview
The Foxboro RH931RQ I/A Series 200 Type 4 P/PVC Termination Cable is an industrial control system cable associated with Foxboro I/A Series 200 installations. It forms part of the electrical interconnection infrastructure used to connect designated interfaces within a process control system.
In distributed control system cabinets, termination cables establish the physical wiring paths between specified system components. These connections are relevant during initial commissioning, cabinet expansion, scheduled maintenance, and replacement of existing cable assemblies. The RH931RQ model number and Type 4 P/PVC designation are important identification details when matching a cable to the wiring arrangement already installed at a facility.
For maintenance engineers working with an existing Foxboro control system, confirming the exact cable designation helps reduce the risk of installing a cable with a different connection arrangement. Before removing an existing assembly, technicians should identify its endpoints and verify the corresponding part number against system drawings and equipment records.
The RH931RQ should be selected according to the requirements of the specific I/A Series 200 installation. The model designation identifies the cable family and type, while the applicable wiring documentation establishes its intended connection points and role within the control cabinet.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Foxboro |
| Model | RH931RQ |
| Product Family | I/A Series 200 |
| Product Type | Type 4 P/PVC Termination Cable |
| Cable Category | Industrial Control System Cable |
| System Platform | Foxboro I/A Series 200 |
| Primary Function | Electrical interconnection |
| Application | Process control system wiring |
| Installation Environment | Industrial control cabinet or designated system wiring location |
| Cable Length | 2 meters |
| Shipping Weight | 3 kg |
Product Features
- Foxboro I/A Series 200 system cable designation.
- Model identification: RH931RQ.
- Type 4 P/PVC termination cable classification.
- Used within designated industrial control system wiring arrangements.
- Supports electrical interconnections between specified system interfaces.
- Suitable for consideration during maintenance of existing Foxboro installations.
- Complete model identification helps distinguish this cable from other termination cable variants.
- Supports planned cable replacement when the installed model has been positively identified.
- Can be routed through control cabinets according to the documented equipment layout.
- Helps maintain an established wiring arrangement when installed at the correct connection points.
- Requires verification of the associated termination hardware before installation.
- Supports organized cabinet wiring when secured and routed according to site requirements.
- Applicable to maintenance procedures involving compatible I/A Series 200 equipment.
- Should be selected by exact part number and connection requirements rather than by a similar product description alone.
Working Principle
The Foxboro RH931RQ functions as a passive electrical interconnection within the designated control system wiring arrangement. Its role is to establish the physical connection between the interfaces specified for the installation.
Designated System Interface → RH931RQ Termination Cable → Associated Termination or Control Interface
The cable carries electrical signals through its conductors between connected equipment. The functions of signal acquisition, output generation, and process control are performed by the relevant system hardware, not by the cable itself.
During installation or replacement, technicians first identify the cable endpoints using the applicable wiring diagrams. They then verify the model designation and connection arrangement before routing and connecting the cable. Correct connection and secure routing help preserve the intended electrical path and reduce the likelihood of faults caused by loose connectors, wiring errors, or physical strain.
If a process signal becomes unavailable or intermittent, the cable connection may be one part of the fault investigation. Inspection should also cover the termination points, associated I/O hardware, and relevant wiring connections. This approach helps determine whether the problem lies in the cable path or elsewhere in the control system.
After installation, the completed connection should be checked according to the equipment documentation and the site’s commissioning or maintenance procedure before the affected system is returned to normal operation.
Role in a Foxboro I/A Series 200 Control Architecture
The RH931RQ belongs to the interconnection layer of the Foxboro I/A Series 200 installation in which it is specified. Its exact position depends on the connected termination hardware and the system configuration.
System Wiring → Termination Arrangement → RH931RQ Cable Connection → Associated Control Hardware → Control Application
| System Element | Function |
|---|---|
| RH931RQ | Identifies the Type 4 P/PVC termination cable used in the specified installation |
| Termination Assembly | Provides designated electrical connection points |
| Field Wiring | Carries electrical signals between field devices and system connection points |
| I/O Module | Acquires input signals or provides outputs according to its specific function |
| I/A Series 200 Control Hardware | Supports configured process monitoring and control functions |
| System Power Supply | Supplies power to the relevant equipment where required |
| Control Cabinet Wiring | Provides the physical routing for electrical interconnections |
| Controller Hardware | Executes configured control logic using available process information |
| Operator Workstation or HMI | Displays process information and supports operator interaction |
The actual endpoints and function of the RH931RQ should be confirmed against the installation’s wiring diagrams and equipment records. The cable designation alone does not establish a specific controller, I/O channel, or termination board assignment.
Industrial Applications
| Application | Typical Use |
|---|---|
| Process Automation | Maintaining designated cable connections within distributed control system installations |
| Chemical Processing | Servicing control cabinet wiring in process plants |
| Oil and Gas Facilities | Maintaining established interconnections in compatible control installations |
| Power Generation | Supporting maintenance of process control wiring infrastructure |
| Water and Wastewater Treatment | Maintaining designated connections in process monitoring systems |
| Petrochemical Plants | Replacing identified cable assemblies during control cabinet maintenance |
| Manufacturing Facilities | Maintaining wiring connections associated with industrial control equipment |
| Industrial Utilities | Supporting maintenance of process monitoring and control infrastructure |
| Control Cabinet Refurbishment | Replacing a specified cable while preserving the documented wiring arrangement |
| Plant Maintenance Operations | Restoring electrical connections following cable damage or troubleshooting |
Installation and Maintenance
- Confirm the complete RH931RQ part number before ordering or installing the cable.
- Review the applicable Foxboro I/A Series 200 system documentation to identify the intended connection points and termination arrangement.
- Follow site electrical isolation and maintenance procedures before disconnecting existing control system wiring.
- Record the existing cable route and connection points before removal, especially when several cable assemblies are installed in the same cabinet.
- Inspect the replacement cable and accessible connectors for visible damage, deformation, or signs of improper handling.
- Verify that the cable designation and connection arrangement match the requirements of the installed termination hardware.
- Disconnect the existing cable according to the applicable procedure, avoiding unnecessary force on the cable and connectors.
- Route the replacement cable along the intended path, avoiding sharp edges, excessive bending, and interference with adjacent equipment.
- Connect the RH931RQ to the designated interfaces according to the system wiring drawings.
- Inspect the completed installation for loose connections, cable strain, unsecured routing, and interference with neighboring wiring.
- Perform the applicable connection, continuity, or functional checks specified by the equipment documentation before returning the system to service.
- Record the replacement model, inspection findings, and any changes to the cable route or connection arrangement in the maintenance records.
Related Components
| Component | Function |
|---|---|
| Foxboro I/A Series 200 Control Hardware | Supports the configured control functions of the installation |
| Termination Assembly | Provides designated electrical connection points |
| I/O Module | Handles signal acquisition or output according to its specific function |
| Field Instrument Wiring | Connects field devices to the relevant termination arrangement |
| Control Cabinet Wiring Accessories | Support cable routing and organization |
| System Power Supply | Supplies power to associated equipment where required |
| Controller Hardware | Executes the configured control application |
| Operator Workstation or HMI | Presents process status and operator controls |
| System Wiring Drawings | Identify cable endpoints and connection assignments |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Foxboro RH931RQ | I/A Series 200 Type 4 P/PVC Termination Cable | Specified model for this product entry |
| Foxboro P0931RQ | I/A Series 200 Type 4 P/PVC Termination Cable | Related Type 4 cable designation; verify connection requirements before substitution |
| Foxboro P0916FH | I/A Series 200 Type 4 P/PVC Termination Cable | Related Type 4 cable designation; confirm the intended system application |
| Foxboro RH916FH | I/A Series 200 Type 4 P/PVC Termination Cable | Related Type 4 cable designation; confirm the intended system application |
| Foxboro AD202MW | I/A Series 200 Type 4 Termination Cable | Related termination cable designation; verify the exact connection arrangement |
| Foxboro P0916DW | I/A Series 200 Type 2 P/PVC Termination Cable | Type 2 cable variant for installations specifying this model |
Key Advantages
- Exact model identification supports cable selection and replacement planning.
- Type 4 P/PVC designation helps distinguish the cable from other variants.
- Supports electrical interconnection within the specified control system wiring arrangement.
- Helps technicians trace and restore established cabinet connections.
- Suitable for planned maintenance when the specified model matches the installed configuration.
- Supports organized cable routing and documented maintenance procedures.
Technical FAQs
What Is the Foxboro RH931RQ I/A Series 200 Type 4 P/PVC Termination Cable Used For?
The Foxboro RH931RQ is identified as a Type 4 P/PVC termination cable associated with the I/A Series 200 control system environment. It forms part of the electrical interconnection infrastructure between designated system interfaces. Its precise connection points should be confirmed using the applicable equipment documentation.
How Can Engineers Verify RH931RQ Compatibility With an Existing Foxboro I/A Series 200 System?
Engineers should check the complete RH931RQ part number against the installed termination hardware, system wiring drawings, and equipment records. The I/A Series 200 designation alone does not establish compatibility with every cabinet configuration or connection arrangement.
Can the RH931RQ Be Replaced With the P0931RQ Termination Cable?
The RH931RQ and P0931RQ share similar product descriptions, but that alone does not establish interchangeability. Before choosing a substitute, verify the manufacturer’s part-number cross-reference, connector arrangement, and intended system application. If equivalence cannot be confirmed, use the model specified in the equipment documentation.
What Should Be Checked if a Control Signal Is Interrupted After Installing the RH931RQ?
Inspect the cable and connectors for visible damage, loose connections, or incorrect seating. Check the documented connection points and perform the electrical tests required by the applicable maintenance procedure. If the fault remains, investigate the associated termination hardware and control system interfaces to determine whether the issue originates beyond the cable itself.