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- P0931RM
- Termination Cable
- USA
- 2 meters
- 3 kg
- Xiamen, China
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Product Overview
The Foxboro P0931RM is an I/A Series termination cable used to establish the electrical connection between termination hardware and associated I/O equipment in a Foxboro I/A Series control system. It belongs to the passive interconnection hardware used within the system’s field I/O wiring architecture.
In a typical I/A Series installation, field instruments are wired to a termination assembly, while the electronic I/O hardware is installed separately within the control cabinet. The P0931RM provides the cable connection between these two parts of the signal path, allowing the established termination arrangement to be maintained without routing individual field connections directly to the I/O hardware.
The cable is particularly relevant to existing Foxboro installations during maintenance, replacement, cabinet refurbishment, and system expansion. When replacing an installed termination cable, the cable model, mating interfaces, termination arrangement, and existing cabinet documentation should be checked together rather than treating the cable as an independent component.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | P0931RM |
| Product Type | I/A Series Termination Cable |
| Product Family | Foxboro I/A Series |
| Series | I/A Series |
| Cable Function | I/O Termination Interconnection |
| System Role | Termination-to-I/O Signal Connection |
| Interface Function | Electrical Signal Interconnection |
| Component Type | Passive Cable Assembly |
| Application | I/A Series I/O Cabinet Wiring |
| Signal Path | Termination Hardware to Associated I/O Hardware |
| Cable Application | Field I/O Signal Routing |
| Installation | Control-System Cabinet |
| Cable Length | 2 meters |
| Shipping Weight | 3 kg |
Product Features
- I/A Series termination cable for Foxboro control-system installations
- Provides the electrical interconnection between termination hardware and associated I/O equipment
- Supports organized field I/O signal routing within the control cabinet
- Functions as a passive cable assembly without independent signal processing
- Suitable for maintenance and replacement work on established I/A Series systems
- Helps preserve the existing termination and I/O wiring architecture
- Supports structured separation between field wiring and electronic I/O hardware
- Suitable for cabinet refurbishment and service applications where the existing interface arrangement is retained
- Can be used as part of an established Foxboro field signal connection path
Working Principle
The P0931RM functions as a passive electrical connection within the I/A Series I/O signal path. It does not interpret, condition, convert, or control the signal. Instead, it carries the corresponding electrical connections between the termination arrangement and the associated I/O hardware.
For an analog or discrete input arrangement, the field device sends its signal through the field wiring to the termination hardware. The termination arrangement organizes the individual field connections, and the P0931RM carries those connections toward the associated I/O interface.
Field Device → Field Wiring → Termination Hardware → P0931RM → I/A Series I/O Hardware → Control System
For output circuits, the signal path operates in the opposite direction. The I/A Series control system commands the associated I/O hardware, and the output connection travels through the termination arrangement and cable toward the field device or final control element.
Because the cable forms part of a predefined I/O architecture, correct termination mapping is important during replacement. A physically similar cable should not automatically be considered interchangeable unless its interfaces and intended system arrangement are confirmed.
Role in a Foxboro I/A Series I/O Control Architecture
The P0931RM occupies the interconnection layer between field termination hardware and the associated I/O interface. It allows the termination point and electronic I/O section to remain physically organized while maintaining the required electrical signal paths.
| Control Architecture Layer | Typical Component | Function |
|---|---|---|
| Process Control | Foxboro I/A Series Control System | Executes process monitoring and control functions |
| I/O Processing | I/A Series I/O Hardware | Handles field input and output signals |
| Termination Interconnection | P0931RM | Carries electrical connections between termination and I/O hardware |
| Termination | I/A Series Termination Assembly | Organizes field wiring connections |
| Field Interface | Transmitters / Switches / Actuators | Provides or receives process signals |
| Field Wiring | Instrument and Control Wiring | Connects field devices with the termination arrangement |
| Process Equipment | Industrial Machinery and Process Units | Generates or responds to controlled process conditions |
Industrial Applications
| Application | Cable Role |
|---|---|
| Process Control Systems | Connects I/A Series termination hardware with associated I/O equipment |
| Chemical Processing | Supports structured field-signal interconnection within control cabinets |
| Oil and Gas Facilities | Maintains organized I/O signal routing between termination and electronic hardware |
| Power Generation | Supports field instrumentation connections within established I/A Series systems |
| Water and Wastewater Treatment | Carries field I/O connections through the existing termination architecture |
| Manufacturing Plants | Used in established Foxboro automation and process-control cabinets |
| System Maintenance | Replaces an existing termination cable while preserving the established wiring arrangement |
| Control-System Refurbishment | Supports cabinet updates where the existing I/O termination architecture is retained |
Installation and Maintenance
- Verify the part number — Confirm that P0931RM matches the existing Foxboro I/A Series termination and I/O arrangement before installation.
- Check system documentation — Review cabinet drawings, termination schedules, and applicable I/O documentation to identify the correct cable connection points.
- Isolate the relevant system section — Follow the plant’s approved shutdown, isolation, and electrical safety procedures before disconnecting the cable.
- Identify both cable ends — Confirm the termination-side and I/O-side interfaces before removing the existing cable.
- Inspect the replacement cable — Check the cable assembly and accessible interfaces for physical damage, contamination, or deformation.
- Remove the existing cable carefully — Disconnect the cable without applying excessive force to the connectors or adjacent termination hardware.
- Verify cable routing — Follow the established cabinet route and avoid unnecessary bending, pulling, crushing, or mechanical stress.
- Install the replacement cable — Connect the P0931RM to the corresponding termination and I/O interfaces according to the system documentation.
- Check connection identification — Confirm that both ends are connected to the intended hardware and that no adjacent cable connections have been disturbed.
- Perform electrical verification — Where required by the maintenance procedure, verify continuity and correct point-to-point connections before returning the system to service.
- Conduct a controlled signal check — After energization, check the affected I/O points for expected signal behavior and investigate unexpected alarms or signal abnormalities.
- Document the replacement — Record the installed model, associated I/O section, termination arrangement, and maintenance date for future service activities.
Related Components
| Component | Function |
|---|---|
| Foxboro I/A Series I/O Hardware | Processes or interfaces with field input and output signals |
| I/A Series Termination Assembly | Provides the organized field wiring termination point |
| P0931RM Termination Cable | Connects termination hardware with associated I/O hardware |
| Field Wiring | Carries electrical signals between field devices and termination hardware |
| Field Transmitter | Supplies process measurement signals to the I/O system |
| Switches and Sensors | Provide discrete or process-status signals to the control system |
| Control Valve / Actuator | Receives output commands from the control system |
| I/O Cabinet | Houses termination and electronic I/O hardware |
| Foxboro I/A Series Control System | Provides process monitoring, control, and supervisory functions |
Recommended Related Models
| Model | Product Type | Typical Relationship |
|---|---|---|
| Foxboro I/A Series Termination Cables | I/A Series Termination Cable | Related cable family for I/O interconnection |
| Foxboro I/A Series Termination Assemblies | I/O Termination Hardware | Associated termination-side hardware |
| Foxboro I/A Series I/O Modules | I/O Interface Hardware | Associated electronic I/O equipment |
| Foxboro I/A Series I/O Interface Components | I/O Interface Hardware | Related system-side connection hardware |
| Foxboro I/A Series Field Wiring Accessories | I/O Wiring Hardware | Supporting field connection components |
Key Advantages
- Provides a dedicated I/A Series termination-to-I/O interconnection.
- Maintains the established separation between field wiring and electronic I/O hardware.
- Supports organized signal routing inside Foxboro control cabinets.
- Functions as a passive connection within the existing I/O signal path.
- Suitable for maintenance, replacement, and cabinet refurbishment work.
- Helps preserve established I/A Series termination architecture.
Technical FAQs
What is the function of the Foxboro P0931RM?
The P0931RM is an I/A Series termination cable that carries electrical connections between termination hardware and associated I/O equipment. It forms part of the physical signal path but does not independently process the connected signals.
Is the P0931RM an active I/O component?
No. The P0931RM is a passive cable assembly. Signal processing and I/O functions are performed by the associated Foxboro I/A Series electronic hardware.
What should be verified before replacing a P0931RM?
The replacement should be checked against the existing termination arrangement, associated I/O hardware, cable interfaces, cabinet documentation, and point-to-point wiring. Matching the part number alone should not replace verification of the complete installation arrangement.
How can an I/O problem related to the termination cable be checked?
Start by checking the physical condition and seating of the cable connections, followed by point-to-point continuity where appropriate. If the cable and connections are correct, the associated termination hardware, I/O channel, field wiring, and field device should also be examined to isolate the source of the signal problem.