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Key Technical Specifications
- Manufacturer: Motorola (Motorola Embedded Computing)
- Model Number: MVME332XT (also listed as MVME-332XT)
- Secondary Part Number: 64-W5364B01A
- Product Type: VME serial controller board
- Serial Channels: 8 channels
- Parallel Port: Centronics parallel printer port
- Bus Standard: VMEbus
- Form Factor: VME card (typically 6U)
- Application: Industrial automation, DCS, serial communications, printer interfacing
- DCS Systems Compatible: ABB Masterview 850/1, Bailey Control Net90/Infi90
- Stock Availability: 1 unit typically available from surplus
- Warranty: 90 days to 1 year (varies by vendor)yuyiplc+1
- Price Range: New/surplus ~686; Refurbished ~480; Repair ~$312
Product Introduction
Motorola MVME332XT (64-W5364B01A) is an 8-channel serial controller VME board with a Centronics parallel printer port. It is part of Motorola’s MVME line of VMEbus embedded controller boards used in industrial automation and DCS applications.
This board interfaces multiple serial devices (PLCs, sensors, instruments) and can connect a parallel printer for logging or diagnostics. It is commonly used in ABB Masterview 850/1 and Bailey Control Net90/Infi90 distributed control systems. Units are typically sold as new surplus or refurbished with testing.
- MVME 332XT
- MVME 332XT
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No serial communication on any channel | Board fault or VME backplane power issue | ✅ High | Check VME bus LEDs, measure 5V/±12V rails at backplane | Replace if power is good but no channels respond |
| One or two serial channels dead | Channel driver failure or cable fault | ✅ Medium | Swap cables, test with known-good device on same channel | Replace board if multiple channels fail with good cables |
| Serial noise / data errors | Grounding issue or cable shield problem | ❌ Low | Check shielding (single-ended vs both ends), verify 24V DC at terminals | Fix grounding/cabling before replacing board |
| Parallel printer not detected | Centronics port fault or cable issue | ✅ Medium | Test with known-good printer and cable, check port pins | Replace if printer works on other port but not this board |
| Board overheats | Internal component failure or power overload | ✅ High | Thermal check after power-up; verify cooling fan | Replace if overheating continues with proper airflow |
| VME bus timeout errors | Board bus interface or termination fault | ✅ High | Check VME bus termination, verify master/slave config | Replace if bus test fails with known-good backplane |
If you are stuck, contact technical support with photos of the board, front-panel LEDs, VME connector, and serial communication logs.
Frequently Asked Questions
Q: Is MVME332XT a direct replacement for my existing board?
A: Only if your system uses the exact same model (MVME332XT) and secondary part number (64-W5364B01A). The number of serial channels (8), Centronics port presence, and firmware version must also match. Confirm compatibility with your DCS (ABB Masterview 850/1 or Bailey Net90/Infi90).
Q: Is this part new or used?
A: This model is obsolete and typically sold as new surplus or refurbished (tested). New factory stock is not available. Pricing reflects age and limited supply.
Q: What warranty do I get?
A: Warranty varies by vendor: 90 days to 1 year. Confirm before ordering. Refurbished units typically have 90 days; new surplus may have 1 year.
Q: Can I hot-swap this board?
A: No. VMEbus boards are not hot-swappable. Power down the entire rack before removing or installing. Backplane damage is a real risk if you try.
Q: Will this fix serial communication failures?
A: Maybe. Cable faults, grounding issues, or device problems can cause the same symptoms. Test cables, verify shielding grounding, and confirm the fault follows the board before replacing it.
Q: Do I need to reconfigure the board after replacement?
A: Yes, possibly. Serial channel settings (baud rate, parity, node address) may be configured via DIP switches, jumpers, or firmware. Take a photo of the old board’s switches before removal and mirror the exact configuration on the new unit.
Q: Why is refurbished cheaper than new surplus?
A: Refurbished units have been tested and repaired if needed, while new surplus is untested or pulled from service. Refurbished pricing includes the testing cost, but new surplus may be cheaper if stock is very limited.
Q: What should I verify before ordering?
A: Match the model (MVME332XT), secondary part number (64-W5364B01A), serial channel count (8), Centronics port presence, and firmware version. Confirm compatibility with your DCS system. Always back up configuration before swapping.
