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Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | GE (General Electric) |
| Part Number | DS3800NBIC1J1G |
| Product Family | DS3800 Series |
| System Platform | Speedtronic Mark IV |
| Module Type | Bridge Interface Board |
| Application | Gas/steam turbine control interface |
| Form Factor | Board-level assembly |
| Connector | Long connector port on left edge for bridge interface |
| Channels | 8-channel module |
| Operating Temperature | -30 to +65 °C (typical for DS3800 cards) |
| Power Supply | +5 V DC (typical for DS3800 family) |
| Compatibility | Mark IV rack only; verify exact revision |
| Condition Options | Unused or Rebuilt |
| Availability | Physically in stock |
| Warranty | 1 year |
Product Introduction
GE DS3800NBIC1J1G is a bridge interface board from the DS3800 Mark IV series, used in GE Speedtronic gas and steam turbine control systems. It allows other components or boards to connect to the bridge interface board via a long connector port on the left edge of the PCB.
This board is typically selected when the original is obsolete or unavailable from OEM channels. The suffix “1J1G” indicates a specific revision; match the full part number before ordering since DS3800 interface boards with similar base numbers can have different pinouts or components.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Communication failure between boards | Bridge interface board fault or connection issue | ✅ High | Check diagnostic logs for bridge communication errors | If diagnostics point to this card, replace and verify connections |
| No board status LEDs | No rack power, blown fuse, or bad backplane | ❌ Low | Measure rack supply voltage at the backplane and check adjacent modules | Check power and rack hardware before replacing this board |
| Intermittent connection faults | Loose edge connector, oxidation, or rack vibration | ✅ High | Inspect connector seating and check for bent pins on the long connector port | Reseat the module and clean the connector if needed |
| Module not recognized | Revision mismatch or incompatible system configuration | ✅ High | Compare part number, suffix, and host rack documentation | Confirm exact system compatibility before installation |
| Burn marks or overheating | Electrical damage or overload | ✅ High | Inspect PCB, connectors, and nearby components for discoloration | Replace the board and verify supply conditions before re-energizing |
If you are stuck, contact technical support with photos, rack model data, and any fault logs from the Speedtronic system.
- DS3800NBIC1J1G
- DS3800NBIC1J1G
Frequently Asked Questions
Q: Is DS3800NBIC1J1G still available as new from GE?
A: No, this is an obsolete Mark IV part. It is sold as Unused (New Surplus) or Rebuilt (Refurbished, tested) from third-party suppliers
Q: What’s the difference between DS3800NBIC1J1E, 1J1F, and 1J1G?
A: The suffix indicates revision. Each revision can have different components or firmware. Always match the exact suffix before ordering.
Q: Can I hot-swap this bridge interface board?
A: Do not hot-swap. Power down the Mark IV rack unless OEM documentation explicitly says otherwise. Swapping live can damage the backplane or the board.
Q: Will my existing configuration stay intact after replacement?
A: Speedtronic configuration usually lives in the controller or host system, not this board. Still, document the old board’s position, jumpers, and connectors before removal.
Q: Why is this cheaper than factory new stock?
A: Because it is obsolete surplus or rebuilt inventory. That lowers price, but verify test status and warranty terms. Rebuilt units should come with a test report.
Q: What condition options are available?
A: Unused (New Surplus) or Rebuilt (Refurbished, tested). Rebuilt units should be explicitly labeled and tested with verification.
Q: What should I check before ordering?
A: Confirm the full model number including suffix, Mark IV rack compatibility, connector style, and required revision. For legacy GE turbine control parts, that prevents most installation mistakes.
