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Phone: +86 16626708626Description
Key Technical Specifications
- Manufacturer: Foxboro / Schneider Electric legacy Foxboro I/A Series.
- Part Number: : P0926PA..
- Product Type: Ring lug termination assembly.
- Series Compatibility: FBM224 termination assembly for Foxboro I/A Series.
- Communication Interfaces: RS-232, RS-422, RS-485.
- Port Count: 4 ports.
- Connector Style: DB-25 for RS-232; compression/ring lug for RS-422 / RS-485.
- Mounting: DIN rail mounted termination assembly.
- Cable Length: Up to 5 m termination cable.
- Material: Polyamide (PA).
- Environmental Rating: Suitable for harsh industrial enclosure use when installed per system specification.
- Note: This is not a RoHS part.
Product Introduction
Foxboro P0926PA is a ring lug termination assembly used with the FBM224 Modbus communication module in Foxboro I/A Series systems. It provides the field termination interface for RS-232, RS-422, and RS-485 wiring in DCS and process automation cabinets.
This part is chosen when you need the exact TA hardware for a Foxboro FBM224 installation. It supports four ports, compression/ring lug terminations, and factory-style signal routing, which reduces wiring errors during replacement work.
P0926PA
P0926PA
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| FBM224 will not communicate with field devices | Wrong TA wiring or loose termination | ✅ High | Verify RS-232/RS-422/RS-485 wiring against the TA pinout and check terminal torque | Rewire to the documented pinout before replacing the module |
| One serial port is dead, others work | Open circuit on one port or bad termination | ✅ High | Measure continuity from TA terminals to field device and check DIP termination settings | Inspect the affected port wiring and termination resistors |
| Comm errors after a module swap | Port configuration mismatch | ✅ High | Compare baud rate, parity, stop bits, and port mode with the old setup | Copy the original configuration exactly |
| Intermittent data drops on RS-485 | Missing or incorrect termination resistor | ✅ High | Check end-of-line termination and shield grounding on the RS-485 bus | Correct termination before suspecting hardware failure |
| No issue at the TA, but network still fails | Problem is upstream in FBM224 or control processor | ❌ Low | Check FBM224 LEDs and read system diagnostics in the controller | Do not replace P0926PA until the and processor are verified |
| Physical damage or burnt terminals | Overcurrent, miswire, or field fault | ✅ High | Inspect for discoloration, heat damage, or melted insulation | Replace the TA and correct the field fault first |
If you are stuck, send photos of the terminal block, the cabinet wiring, and the diagnostic screen to technical support.
Frequently Asked Questions
Q: What is P0926PA exactly?
A: P0926PA is a Foxboro ring lug termination assembly used with the Modbus communication module in I/A Series systems.
Q: Is this the same as the module?
A: No. This is the termination assembly, not the electronic module. The TA handles field wiring; the does the communication work.
Q: Can I hot-swap P0926PA?
A: The TA itself is part of the termination hardware, so don’t treat it like a casual swap. In practice, you should de-energize and verify wiring before touching it. On a live cabinet, one wrong move can create a bus fault fast.
Q: Is this a direct replacement?
A: Yes, if your system uses the Foxboro ring lug TA and the wiring style matches the original installation. Always verify the exact termination style before ordering.
Q: Why is this cheaper than factory-new stock?
A: It is typically sold as new surplus. That usually means unused OEM inventory or pull stock, not freshly manufactured current production.
Q: Does it include warranty?
A: Warranty depends on the seller’s stock policy. For B2B listings, spell out the warranty length clearly so procurement does not have to ask twice.
Q: What is the main installation risk?
A: The biggest risk is wiring mismatch. Take photos of the original terminal layout, confirm the port mapping, and do not trust memory during a replacement.
