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Phone: +86 16626708626Description
Key Technical Specifications
- Manufacturer: Foxboro / I/A Series compatible termination hardware.
- Model: PBCO-D8-009.
- Function: Connects D1000 intrinsic safety modules to Foxboro FBM I/O cards.
- Supported FBM Cards: FBM211, FBM207b, FBM241c, FBM242.
- Channel Capacity: Up to 16 AI, 16 DI, 8 DI + 8 DO, or 16 DO depending on module set.
- Supply Voltage: 24 V dc nominal, 20 to 30 V dc.
- Polarity Protection: Reverse polarity protected.
- Fault Detection Threshold: ≤ 18 V dc.
- Protection Fuse: 2 A time-lag, spare fuse provided.
- Interface Connector: SUB-D 37-pin male.
- Field Wiring: Plug-in disconnect screw terminals, up to 2.5 mm².
- Operating Temperature: −20 to +60 °C.
- Storage Temperature: −45 to +80 °C.
- Enclosure / Mounting: Surface mounting, M6 slots, shield rail and earth connection provided.
- Dimensions: 224 mm W x 190 mm D x 122 mm H.
- Weight: About 940 g, excluding modules.
Product Introduction
Foxboro PBCO-D8-009 is an 8-position termination board used with Foxboro FBM I/O cards in I/A Series systems. It provides the field-side interface for FBM211, FBM207b, FBM241c, and FBM242 installations, with direct connection support for D1000 Series intrinsic safety modules.
This board is used when you need the correct FBM interface hardware for signal termination, power distribution, and fault monitoring. The layout, 24 V dc supply range, and SUB-D 37-pin connection make it a practical replacement part for maintenance and panel rebuild work.
PBCO-D8-009
PBCO-D8-009
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| FBM I/O card does not see field signals | Wrong termination board wiring | ✅ High | Check the SUB-D 37-pin connection and verify terminal mapping against the original board | Rewire to the documented pinout before swapping hardware |
| Red fault LED is on | Supply voltage too low or blown fuse | ✅ High | Measure 24 V dc at the board and inspect the 2 A time-lag fuse | Replace the fuse and verify supply voltage before condemning the board |
| Intermittent channel loss | Loose screw terminal or bad shield connection | ✅ High | Tug-test terminations and verify shield rail grounding | Tighten terminations and recheck continuity |
| Board powers up, but one FBM card still fails | Fault is in the FBM card or module set | ❌ Low | Check the FBM module LEDs and controller diagnostics | Do not replace PBCO-D8-009 until the FBM card is confirmed good |
| Multiple channels read dead | Field wiring or isolation module issue | ✅ Medium | Check the D1000 module side first, then measure signal at the TB terminals | Verify the associated D1000 module and field loop wiring |
| Heat discoloration near terminals | Overload or miswire | ✅ High | Inspect for burnt plastic, loose conductors, or undersized wire | Remove from service and correct the field fault immediately |
If you get stuck, send photos of the board, terminal strip, and FBM diagnostic page to technical support.
Frequently Asked Questions
Q: What is PBCO-D8-009 used for?
A: It is a Foxboro termination board used to connect D1000 Series intrinsic safety modules to Foxboro FBM I/O cards.
Q: Which cards does it fit?
A: It supports FBM211, FBM207b, FBM241c, and FBM242.
Q: Is this the same as an I/O module?
A: No. This is the termination board. The actual signal processing happens in the FBM card and the D1000 modules.
Q: Is it hot-swappable?
A: No, I would not treat it that way. You should isolate power, confirm zero voltage, and verify wiring before removal. A live swap can create a nasty fault on the backplane side.
Q: What condition should this be listed as?
A: If it is unused stock, list it as New Surplus. If it has been tested and repackaged, call out Refurbished clearly. Buyers in this segment hate vague condition language.
Q: Why does this part matter so much during replacement work?
A: Because the pinout and field termination are part of the system behavior. One wrong wire on a termination board can look like a bad FBM card and waste hours of troubleshooting.
