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Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | IS200DSPXH2DBD |
| Manufacturer | General Electric (GE) |
| Series | Speedtronic Mark VI |
| Board type | Digital Signal Processor (DSPX) control board |
| Main processor | DSP + ASIC/FPGA for logic processing |
| Application | Gas/steam turbine control, EX2100 excitation control |
| Mounting | Slot-type in Mark VI control cabinet backplane |
| Max parallel boards | Up to 4 boards for multi-loop control |
| PCB layers | Multi-layer (4+ layers) design |
| Isolation | Signal isolation on analog inputs (photoelectric isolation) |
| Operating temperature | Industrial-grade (suitable for turbine room environments) |
| MTBF | ~180,000 hours (Telcordia standard, 25°C) |
| Compatibility | GE Mark VI system backplane bus |
| Platform integration | Compatible with GE Predix for remote I/O and diagnostics |
| Warranty (typical) | 1 year (varies by seller) |
Product Introduction
GE IS200DSPXH2DBD is a Digital Signal Processor (DSP) control board for the Speedtronic Mark VI turbine control system. It performs logic processing, signal conditioning, and control functions for gas/steam turbine applications and EX2100 excitation systems.
This board is chosen when the existing DSPX card fails, shows diagnostic faults, or needs replacement to maintain control loop stability. Buyers prioritize exact model match, verified condition, and clear compatibility with their Mark VI rack because Mark VI hardware swaps are not forgiving to mismatched parts.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Mark VI controller won’t boot or shows DSP fault | Power supply issue, backplane fault, or DSPX board failure | ✅ High | Measure rack supply voltage at backplane; check DSPX LED status | Verify rack power first, then swap with a known-good DSPX board |
| Intermittent turbine control alarms or trips | Loose connector, edge contact contamination, or board fault | ✅ High | Inspect edge fingers, reseat card firmly, check cabinet vibration history | Clean contacts carefully with approved contact cleaner and confirm full seating |
| Loss of communication with adjacent Mark VI modules | Slot mismatch, damaged connector, or DSP logic failure | ✅ High | Compare with known-good slot and read system diagnostic buffer | Confirm slot compatibility; replace board if faults follow the card |
| Unexplained control loop instability or noise | DSP processing error, analog input isolation failure | ✅ High | Review analog input signals and diagnostic logs for noise patterns | Replace DSPX card if anomalies track with this module |
| Other rack modules also misbehave | Backplane, power, or system-level fault | ❌ Low | Check rack supply, grounding, and adjacent module behavior | Do not assume this DSPX card is the root cause |
| Board runs abnormally hot | Internal component failure or poor cabinet cooling | ✅ Medium | Use IR thermometer and compare against known-good board | Replace if temperature is abnormal under normal load |
If you are stuck, send photos of the board, rack slot, LEDs, connector condition, and diagnostic logs to technical support.
- IS200DSPXH2DBD
- IS200DSPXH2DBD
Frequently Asked Questions
Q: What is GE IS200DSPXH2DBD?
A: It is a GE Speedtronic Mark VI Digital Signal Processor (DSP) control board used in turbine control and EX2100 excitation systems. The board runs DSP + FPGA logic for control loops and signal processing.
Q: Is this a direct replacement?
A: Only if your existing system uses IS200DSPXH2DBD in the same Mark VI configuration. Always match the exact part number and verify slot, connector, and firmware compatibility before installation
Q: Is it new, used, or refurbished?
A: This listing is positioned as New Surplus—unused inventory from prior stock, not factory-sealed OEM packaging. Condition should be clearly stated, and testing status should be confirmed with the seller.
Q: Can I install it without changing anything else?
A: Sometimes yes, but do not assume that. Check the original board revision, rack slot, wiring, and any site-specific configuration. Mark VI boards are sensitive to mismatches.
Q: What should I check before swapping the board?
A: Photograph the old card, note the rack position, verify power is off, confirm grounding, and inspect the backplane connector for corrosion or bent pins. A bad swap often starts with a bad assumption.
Q: Why is surplus cheaper than factory stock?
A: Surplus pricing reflects secondary-market sourcing, limited availability, and older inventory. The lower price does not mean it is the same as factory-new sealed stock, so testing and condition must be transparent.
Q: Does this part come with a warranty?
A: Warranty terms depend on the seller. For B2B buyers, confirm testing status, return terms, and whether a test report is included. Typical industrial surplus listings offer 1-year warranty on tested units.
