GE DS200QTBDG1AAA – Digital Contact Terminal Board | Mark VI Turbine Control Platform
Engineering Background
The DS200QTBDG1AAA is a Digital Contact Terminal Board developed by General Electric as part of the Mark VI turbine control system architecture. The Mark VI platform was engineered to deliver high-availability, fault-tolerant control for gas turbines, steam turbines, and combined-cycle power generation units. This terminal board serves as the critical interface layer between field-wired discrete I/O signals and the Mark VI controller backplane, enabling reliable digital contact acquisition and distribution across demanding industrial environments.
Product Positioning
Designed for power generation OEMs, EPC contractors, and plant maintenance teams, the DS200QTBDG1AAA is a direct-fit replacement and upgrade component for existing Mark VI installations. Konmask.com supplies this board as a verified, tested unit suitable for both emergency replacement and planned maintenance outages, backed by full traceability documentation.
Complete Technical Specifications
| Part Number | DS200QTBDG1AAA |
| Manufacturer | General Electric (GE) |
| Series / Platform | Mark VI Turbine Control System |
| Board Type | Digital Contact Terminal Board |
| Function | Digital discrete I/O signal termination and routing |
| Signal Type | Dry contact / digital contact inputs and outputs |
| Mounting | Panel / rack-mount, Mark VI enclosure compatible |
| Operating Temperature | 0°C to +60°C (standard industrial range) |
| Weight | 1,750 g (approx.) |
| Condition | Genuine OEM — tested and verified |
| Compliance | CE, RoHS-compatible; GE OEM specification |
Proven Application Environments
- Gas turbine control panels (Frame 6, Frame 7, Frame 9 series)
- Steam turbine and combined-cycle power plant DCS integration
- Compressor station and pipeline control systems
- Refinery and petrochemical plant automation
- Emergency shutdown (ESD) and safety instrumented system (SIS) interfaces
- Retrofit and upgrade projects migrating from Mark V to Mark VI
Engineering Advantages
- Direct OEM Compatibility: Plug-and-play replacement within Mark VI enclosures — no field wiring modifications required.
- High Signal Integrity: Dedicated terminal rows with noise-isolated digital contact channels minimize false trips and signal cross-talk.
- Robust Construction: Industrial-grade PCB with conformal coating for humidity and vibration resistance in turbine hall environments.
- Simplified Maintenance: Clearly labeled terminal blocks and modular board design reduce MTTR during unplanned outages.
- Origin: Genuine GE OEM board — not aftermarket or third-party clone.
- Testing: Each unit undergoes functional bench testing prior to shipment, including contact continuity, backplane connector integrity, and visual inspection per IPC-A-610 Class 2 standards.
- Traceability: Serial number and revision level documented; certificate of conformance (CoC) available on request.
- Packaging: Anti-static ESD bag + foam-lined carton; shock-watch indicator included for international freight.
- Warranty: 12-month replacement warranty against manufacturing defects.
- Confirm Part Number: Verify DS200QTBDG1AAA against your Mark VI BOM or nameplate label before ordering.
- Request Quote: Contact support@konmask.com for volume pricing, lead time, and export documentation (CO, packing list, commercial invoice).
- Order Placement: Purchase via Konmask.com checkout or via PO for approved B2B accounts.
- Shipping: DHL / FedEx express available; sea freight consolidation for bulk orders. HS Code available on request for customs clearance.
- Receiving Inspection: Inspect ESD packaging integrity and serial number upon receipt; report discrepancies within 48 hours.
System Architecture & Signal Flow
Within the Mark VI architecture, the DS200QTBDG1AAA occupies the I/O termination layer. Field cables from limit switches, relay contacts, and discrete sensors land on the terminal board’s screw-terminal rows. Signals are then conditioned and routed via the backplane ribbon interface to the VCMI or VCRC controller cards. The board supports both sourcing and sinking contact configurations, accommodating a wide range of field device wiring conventions without additional signal converters.
In TMR configurations, three DS200QTBDG1AAA boards operate in parallel across the R, S, and T controller racks, with the Mark VI voting logic resolving any single-channel discrepancy to maintain continuous turbine operation.
Sourcing & Quality Verification
Procurement Process
Technical FAQ
Q: Is DS200QTBDG1AAA compatible with Mark VIe?
A: The DS200QTBDG1AAA is designed for the Mark VI platform. Mark VIe uses a different I/O terminal board family (IS200 series). Please confirm your controller generation before ordering.
Q: Can this board be repaired if a terminal row is damaged?
A: GE does not publish field-repair procedures for terminal boards. Konmask recommends direct board replacement to maintain system integrity and warranty coverage.
Q: What is the lead time for in-stock units?
A: In-stock units ship within 1–2 business days. Contact us for real-time availability confirmation.
Q: Do you provide installation support?
A: Konmask supplies hardware and documentation. For on-site commissioning, we can refer qualified GE-certified service partners upon request.
Q: Is a datasheet or wiring diagram available?
A: Yes. GE Mark VI technical manuals (GEH-6421 series) cover DS200 terminal board wiring. Contact support@konmask.com to request applicable documentation.
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