Description
Key Technical Specifications
- Manufacturer: NORIS Group
- Part number: SA371-3G
- Product type: Processorkarte / processor card
- Platform: NORIMOS 1000 / 2000
- Application: Marine monitoring and control
- Condition in market: Typically used or surplus
- Compatibility: Must match the installed NORIMOS rack and revision
- Installation note: Verify connector layout, board label, and revision before swap
- Availability: Legacy stock only
- Replacement note: Do not assume another SA-series card will work
Product Introduction
NORIS SA371-3G is a processor card used in NORIMOS 1000 and NORIMOS 2000 marine monitoring systems. It is a legacy control board that buyers source when they need an exact replacement for an installed shipboard automation platform.
This part is chosen when the system must stay on the original hardware architecture. Match the part number, revision, and rack details before ordering, because similar NORIS cards can differ in fit and function.
- SA371-3G
- SA371-3G
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No boot indication | Missing supply voltage or failed processor card | ✅ High | Measure supply voltage at the rack and check status LEDs | Verify power and backplane first |
| System alarm on startup | Configuration mismatch or bad card revision | ✅ High | Compare the old board label and system settings | Match the exact SA371-3G revision before replacing |
| Communication timeout | Bus fault, address issue, or failed interface | ✅ High | Check node settings and read the system diagnostics | Confirm wiring and settings before replacement |
| Intermittent resets | Unstable supply or poor backplane contact | ✅ Medium | Monitor voltage under load and reseat the card | Inspect power and seating before buying a new card |
| Missing sensor data | Upstream wiring or input module problem | ❌ Low | Test field signals and adjacent modules | The processor card is often not the root cause |
| Overheating | Cabinet cooling issue or overloaded rack | ✅ Medium | Measure cabinet temperature and airflow | Fix thermal conditions first |
| Works after reseating | Oxidized contacts or loose mounting | ✅ Medium | Clean contacts and reinstall the card | Service the rack before assuming card failure |
Contact technical support with photos of the label, connector side, and any diagnostic logs if the issue is still unclear.
Frequently Asked Questions
Q: Is SA371-3G a processor card?
A: Yes. It is identified as a processor card for NORIMOS 1000 / 2000 systems.
Q: Is this a direct replacement for every NORIMOS system?
A: No. Exact compatibility depends on the installed rack, revision, and connector layout. Match the original unit first.
Q: Is it new or used?
A: Stock for this kind of legacy marine card is usually used or surplus. Condition should be stated clearly before purchase.
Q: Can I hot-swap it?
A: Do not assume so. For marine control electronics, power down unless the OEM documentation explicitly allows live replacement.
Q: Why is it cheaper than OEM support stock?
A: Because it usually comes from surplus or reclaimed inventory, not current production. That lowers cost, but it makes verification more important.
Q: Will my configuration transfer automatically?
A: Not guaranteed. Save the original settings and note any jumper or address configuration before removing the old card.
Q: What should I verify before ordering?
A: Match the exact SA371-3G part number, the NORIMOS platform, the rack revision, and the physical connector arrangement.



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