Product Details
The Foxboro P0931RU, also cataloged as the P0931RU Termination Cable, operates as a dedicated hardware component for field signal interconnectivity and physical relay interface extending within Foxboro I/A Series and InFusion platforms. Configured as a Type 4 termination cable assembly, it routes multi-channel discrete and relay telemetry between main termination assemblies and field control modules using Low Smoke Zero Halogen (LSZH) jacketed cabling terminated with a 37-pin male D-subminiature connector.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | P0931RU |
| Brand | Foxboro |
| Origin | USA |
| Dimensions | 2.0 m (6.6 ft) Cable Length (Available up to 30 m) |
| Operating Temp | -40 to +105 deg C (-40 to +221 deg F) |
| Power Consumption | Passive Component |
| Connector Type | 37-pin male D-subminiature |
| Ring Lug Wiring Size | 0.5 to 4 mm2 (22 AWG to 12 AWG), #6 size (9.5 mm) |
| Cable Material | Low Smoke Zero Halogen (LSZH), Polyamide (PA) |
| Relay Switching Rating | 5 A (30 VDC / 80-120 VAC), 10 A (80-125 VDC / 80-120 VAC) |
DCS Process Control and Channel Isolation
The Foxboro P0931RU assembly maintains channel-to-channel isolation across individual twisted pairs to protect DCS backplane electronics from field-induced electrical noise and ground loops. Compatible with 4-20 mA HART loop protocol wiring and discrete switching signals up to 10 A at 120 VAC, the assembly incorporates high-density shielding to minimize cross-talk along extended cable lengths up to 30 m. The physical separation of signal paths prevents transient surge propagation from disrupting adjacent input and output channels during active switching execution.
Frequently Asked Questions
Q: What is the benefit of the LSZH cable jacket on the P0931RU assembly in field enclosures?
A: The Low Smoke Zero Halogen material resists degradation over a wide temperature range (-40 to +105 deg C) while limiting corrosive gas emissions during high-temperature or combustion events.
Q: How is strain relief and shield continuity managed at the 37-pin D-subminiature connector interface?
A: The 37-pin male D-subminiature connector uses a rigid metallic backshell that clamps the cable shield drain wire directly to the chassis ground frame.
Field Installation Guidelines
- Inspect the 37-pin male D-subminiature connector pins for alignment and clean surfaces before mating with the baseplate receptacle.
- Secure the D-subminiature connector locking screws to maintain vibration-resistant contact and ground continuity.
- Crimp accepted wire sizes (22 AWG to 12 AWG / 0.5 to 4 mm2) using standard #6 ring lugs before securing to terminal assembly posts.
- Route the cable through dedicated low-voltage wiring troughs, keeping a minimum bend radius of six times the cable diameter.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Demystifying Open Platform Communication (OPC): The Backbone of Industrial Interoperability
Interoperability remains a cornerstone requirement for modern smart factories and process automation. Open Platform Communication (OPC) bridges the gap between disparate hardware platforms, control systems, and visualization software. By establishing a universal communication standard, OPC allows field controllers, SCADA platforms, and enterprise software from different vendors to exchange real-time data seamlessly.
Understanding Siemens PLC Memory Cards: MMC, SMC, and SD Solutions in Industrial Automation
Memory management plays a pivotal role in maintaining control system reliability across modern manufacturing plants. Industrial control systems rely on specialized memory cards to store project logic, firmware updates, and retentive system data. Siemens uses several memory architectures, including Micro Memory Cards (MMC) and SIMATIC Memory Cards (SMC). Engineers must understand these hardware variations to ensure zero data loss and minimize downtime during maintenance routines.
Redefining Control Systems: The Rise of Flexible I/O Modules in Industrial Automation
Conventional input-output architectures often limit engineering agility and inflate long-term inventory costs. Today, Flexible Input/Output Modules (FIOM) are transforming how control system engineers design, commission, and maintain automation infrastructure. By allowing individual channel software configuration, FIOM technology bridges the gap between rigid hardware design and dynamic plant requirements.