Product Core Brief
- Model: RH926GH
- Brand: Foxboro (Schneider Electric / Invensys)
- Series: I/A Series DCS
- Core Function: Acts as a redundant remote I/O communication interface, linking the main controller to field I/O racks via high-speed fiber optics or coaxial cables.
- Product Type: Redundant Remote I/O Communication Module
- Key Specs: Dual Redundant Links | Hot-Swappable | 0°C to +60°C
- Condition: New Original / New Surplus
FOXBORO P0917GY
Product Introduction
The Foxboro serves as a critical redundant remote I/O communication module within the Foxboro I/A Series distributed control system (DCS). This industrial automation unit acts as the system’s communication hub, ensuring high-speed, reliable data exchange between the central controller and remote field devices.
This replacement module features a dual redundant architecture, utilizing fiber optic or coaxial cable connections to guarantee uninterrupted signal transmission. Designed specifically for high-availability process industries, it seamlessly supports hot-swapping and online diagnostics to minimize downtime and maintain continuous production.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | Redundant Remote I/O Communication Module |
| System Compatibility | Foxboro I/A Series DCS |
| Communication Media | Dual Redundant Fiber Optic / Coaxial Cable |
| Operating Temp | 0°C to +60°C |
| Protection Rating | IP20 |
| Hot-Swap Support | Yes |
| Primary Application | High-Availability Process Control |
| Compliance | Foxboro DCS Standards |
| Dimensions | 140 mm x 95 mm x 82 mm |
| Weight | 0.7 kg |
Quality Control Process
Every replacement module undergoes strict functional and electrical validation. We first verify the power draw and internal logic stability using a calibrated multimeter. Next, we perform dual-link communication testing to ensure seamless redundancy failover and data integrity. We then inspect the front panel LED indicators (POWER, RUN, REDUNDANCY, FAULT) and the physical connectors for any signs of damage or wear. All units ship in anti-static shielding.
Replacement Pitfall Guide
Verify Redundant Link Wiring. This module relies on dual redundant communication links. Ensure both the primary and secondary fiber/coaxial cables are securely terminated. A single loose cable will defeat the redundancy and trigger continuous FAULT alarms.
Utilize Hot-Swap Capability Safely. While the supports hot-swapping, always verify the module’s redundancy status via the Station software before removal. Never remove the primary active module unless the backup has fully synchronized and taken over.
Check Environmental Limits. The module has a strict operating temperature range of 0°C to +60°C. Installing this unit in unventilated field cabinets exceeding this limit will cause thermal degradation and communication errors.
Confirm Firmware Compatibility. Ensure the replacement module’s firmware revision is compatible with your existing I/A Series DCS software version. Mismatched firmware can prevent the module from joining the redundant network.
Keep these in mind and you’ll cut 90% of rework time.
FOXBORO P0917GY
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| Direct | Identical electrical specs | ||
| RH926TJ | Needs Adaptation | Verify communication protocol variant | |
| RH922RK | Needs Adaptation | Different form factor, verify chassis fit |
- Failover Time: Seamless, bumpless transfer upon single-link failure.
- Data Integration: Supports FBM series I/O cards and HART smart instruments.
