Foxboro P0931RM I/A Series Termination Assembly Fieldbus Interface Cable

Product Overview

The Foxboro P0931RM is a specialized Termination Assembly (TA) interface cable designed for the I/A Series Distributed Control System (DCS). This mission-critical interconnect facilitates the high-fidelity transmission of signals between Fieldbus Modules (FBM) and their corresponding termination hardware. Specifically engineered for Rev G DIN rail mounted FBM configurations, the P0931RM ensures that process data remains accurate and protected from the electrical noise and physical stressors common in heavy industrial environments.

By employing high-conductivity copper alloy cores and advanced environmental sealing, this cable acts as a vital link in the control loop, supporting the deterministic communication required for real-time process monitoring and automation.

Technical Specifications

• Manufacturer: Foxboro (Schneider Electric / Invensys)

• Model Number: P0931RM

• Cable Type: Termination Assembly (TA) / FBM Interface Cable

• Product Line: I/A Series (Rev G DIN Rail)

• Conductor Material: High-grade Copper Alloy

• Insulation: High-Density Polyethylene

• Thermal Range: -40°C to +150°C

• Ingress Protection: IP67 (Dust-tight and waterproof)

• Weight: 0.36 kg

• Dimensions: 18 x 18 x 5 cm

• Origin: USA

Key Technical Characteristics

• Superior Signal Integrity: The integration of high-purity copper alloy conductors minimizes internal resistance, ensuring that low-voltage analog and digital signals are delivered without attenuation over the cable's length.

• Extreme Thermal Resilience: Unlike standard industrial cabling, the P0931RM is rated for operation in temperatures as high as +150°C. This makes it suitable for routing near heat-intensive machinery in power plants, refineries, and glass manufacturing facilities.

• IP67 Environmental Hardening: This cable features a specialized sealing architecture that provides a dust-tight barrier and protection against water immersion up to 1 meter. This ensures reliability in wash-down areas or facilities prone to high humidity and particulate accumulation.

• Advanced Dielectric Insulation: Polyethylene layering provides a high dielectric constant, protecting the signal path from electromagnetic interference (EMI) and preventing crosstalk between adjacent signal pairs.

• Efficient Mechanical Interface: The cable utilizes a precision screw-terminal or plug-in design (depending on the specific TA revision) that simplifies field installation. This secure mechanical connection prevents accidental disconnects caused by industrial vibration.

• Rev G Compatibility: Specifically optimized for the Foxboro Rev G architecture, the P0931RM supports modern DIN rail FBM baseplates, providing a streamlined upgrade path for legacy I/A Series installations.

Primary Applications

The Foxboro P0931RM Termination Cable is essential for high-reliability signal routing in:

• Petrochemical Processing: Connecting smart field transmitters to DCS controllers in corrosive atmospheres.

• Power Generation: Interfacing boiler and turbine control modules where high ambient temperatures are present.

• Water/Wastewater Treatment: Reliable data links in damp environments requiring IP67 ingress protection.

• General Manufacturing: General-purpose high-speed I/O interfacing for I/A Series automation blocks.