Description
Key Technical Specifications
- Part Number: IS200VSCAH2ABA
- Assembly Number: IS200VSCAH2A
- Manufacturer: General Electric
- Product Series: Mark VI Speedtronic
- Board Type: VME Serial Communication Board
- Bus Architecture: VMEbus (VME)
- Application: Gas turbine speedtronic control systems
- System Use: Serial communication interface for Mark VI controllers
- Availability: Obsolete, limited stock
- Country of Origin: USA (made by GE)
- Condition: New Surplus / UNUSED or REBUILT options available
Product Introduction
GE IS200VSCAH2ABA is a VME serial communication board for the Mark VI Speedtronic gas turbine control system. It provides serial communication interface capability within the VMEbus-based architecture used in turbine speedtronic applications.
This module is typically selected when the exact OEM part number is required for direct replacement in existing Mark VI installations. Buyers source IS200VSCAH2ABA when they need verified VME compatibility, serial comm functionality, and a swap path that avoids system reconfiguration.
- IS200VSCAH2ABA
- IS200VSCAH2ABA
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No serial communication to controller | Lost backplane power, VME slot fault, or card failure | ✅ High | Measure VME rack supply rails, verify slot LEDs, check backplane status | Check rack power and slot alignment before replacing the board |
| Communication timeout errors | Protocol mismatch, firmware version conflict, or wiring issue | ✅ High | Verify serial cable continuity, check baud rate/settings in software | Confirm config matches hardware and reload correct communication setup |
| Intermittent comms dropouts | Loose VME connector, oxidation, or vibration-related contact | ✅ High | Reseat the card, inspect edge connector, test under vibration | Clean and reseat first; replace only if problem follows the card |
| Controller cannot detect board | Board ID mismatch, configuration error, or failed initialization | ✅ High | Compare hardware ID against saved project, check诊断 buffer | Verify firmware/configuration match and reload correct hardware definition |
| All VME slots show fault | Backplane power failure, common reference fault, or rack issue | ❌ Low | Check rack supply voltages, inspect power module status | If power is correct, the issue is likely backplane or power supply, not this card |
| Serial port no response | Field wiring open, bad transmitter, or port circuit fault | ✅ High | Measure serial line at terminal with meter, check cable termination | Verify field loop first, then swap the module if the loop is healthy |
Contact technical support with photos of the board, VME slot, wiring, and any diagnostic logs if the fault stays unclear.
Frequently Asked Questions
Q: Is IS200VSCAH2ABA still available from GE?
A: No, it is an obsolete Mark VI part. Availability depends on surplus inventory. Stock moves fast, and some lots are New Surplus rather than factory fresh.
Q: Is IS200VSCAH2ABA the same as IS200VSCAH2A?
A: IS200VSCAH2A is the assembly number. IS200VSCAH2ABA includes the full suffix. In many cases they are interchangeable for replacement, but verify suffix-level compatibility before ordering.
Q: Can I swap it without reprogramming the controller?
A: The control logic stays in the host processor, not on this board. Still, back up the project and confirm the hardware definition matches before install.
Q: Is it hot-swappable?
A: No. Treat it as a power-down replacement unless site documentation explicitly says otherwise. Pulling it live can damage the VME backplane or trigger a rack fault.
Q: Why is the price lower than buying from OEM channels?
A: This is surplus or tested inventory, not current OEM production. Lower price reflects stock source and lifecycle status, not that the part is generic.
Q: What condition should I expect?
A: We list it as New Surplus or New Original. Exact lot condition should be confirmed before purchase. For industrial buyers, that distinction matters more than marketing language.
Q: What should I verify before installing?
A: Check the exact part number, VME slot compatibility, serial wiring, and any stored configuration. I have seen more downtime from mismatched suffixes or wiring errors than from the board itself.
Q: Does it support RS-485 or RS-232?
A: The board handles serial communication for Mark VI systems, but the exact protocol variant depends on site configuration. Check the OEM datasheet or project documentation for your specific setup.
Q: What warranty is included?
A: A 1-year warranty is standard for this part. Verify the exact terms with the supplier before purchase.



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