GE DS200SIOBH1A I/O Control Board – Signal I/O Interface Module | Mark VI Speedtronic Platform
Engineering Background: The DS200SIOBH1A is a Signal I/O Board (SIOB) designed and manufactured by GE (General Electric) as a core interface component within the Mark VI Speedtronic™ turbine control system. It serves as the primary signal conditioning and I/O routing layer between field instrumentation and the Mark VI controller core, enabling precise real-time monitoring and control of gas turbines, steam turbines, and combined-cycle power generation units.
Product Positioning: This board is a direct OEM replacement module for Mark VI-equipped turbine control panels. It is sourced from decommissioned or surplus OEM installations, fully inspected, and verified against GE’s original part specifications. It is the preferred procurement choice for maintenance engineers seeking a cost-effective, drop-in replacement without system reconfiguration.
Complete Technical Specifications
- Part Number: DS200SIOBH1A
- Manufacturer: GE (General Electric) – Power Controls Division
- Platform / Series: Mark VI Speedtronic™ Turbine Control System
- Module Type: Signal I/O Board (SIOB) – Analog & Digital I/O Interface
- Form Factor: PCB Card Module (rack-mounted, Mark VI chassis compatible)
- Signal Types Supported: Analog inputs (4–20 mA, thermocouple, RTD), Digital I/O (24 VDC discrete)
- Communication Interface: Internal Mark VI backplane bus
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Power Supply: Supplied via Mark VI chassis backplane (typically +5 VDC / ±15 VDC)
- Weight: Approx. 380 g
- Compliance: Designed to GE Speedtronic Mark VI system standards
- Condition: Surplus / Refurbished – Tested & Verified
Proven Application Environments
- Gas turbine control panels (GE Frame 5, Frame 6, Frame 7, Frame 9 series)
- Steam turbine governor and protection systems
- Combined-cycle power plant (CCPP) DCS integration
- Compressor station automation and surge control
- LNG plant turbine-driven compressor control
- Offshore platform power generation and control systems
- Industrial cogeneration facilities
Engineering Advantages
- Direct OEM Compatibility: Plug-and-play replacement within existing Mark VI chassis — no firmware reconfiguration required in most installations.
- Multi-Signal Handling: Consolidates analog and digital I/O on a single board, reducing wiring complexity and panel footprint.
- High Signal Fidelity: Precision signal conditioning circuitry ensures accurate sensor readings critical for turbine protection logic.
- Proven Field Reliability: Deployed in thousands of GE turbine installations globally across power generation and oil & gas sectors.
- Rapid Maintenance Swap: Board-level replacement minimizes turbine downtime versus component-level repair.
System Architecture & Signal Flow
Within the Mark VI architecture, the DS200SIOBH1A resides in the I/O section of the Mark VI panel. Field signals from turbine sensors (thermocouples, pressure transmitters, speed pickups, limit switches) are wired to terminal boards (e.g., TBCI, TBQC), which connect via cables to the SIOB. The SIOB conditions, digitizes, and routes these signals across the Mark VI backplane to the controller core (VCMI/VCRC) for processing. Control outputs are returned via the same path to actuators and solenoids.
Signal Flow: Field Sensor → Terminal Board → DS200SIOBH1A (SIOB) → Mark VI Backplane → Controller Core (VCMI) → Control Output
Sourcing & Quality Verification
- All units sourced from documented surplus inventory or decommissioned OEM installations.
- Each board undergoes visual inspection for physical damage, burnt components, and connector integrity.
- Functional bench test performed where applicable using Mark VI-compatible test fixtures.
- Part number label and revision code verified against GE documentation prior to shipment.
- Anti-static packaging (ESD-safe bag + foam insert) used for all shipments.
- 90-day warranty against defects in materials and workmanship.
Procurement Process
- Step 1: Confirm part number DS200SIOBH1A and Mark VI panel revision with your site documentation.
- Step 2: Contact Konmask for real-time stock confirmation and lead time: [email protected] | +0086 19859288691
- Step 3: Submit purchase order — we accept T/T wire transfer, PayPal, and major credit cards.
- Step 4: Unit ships within 1–3 business days via DHL / FedEx with full tracking.
- Step 5: Receive, inspect, and install — our engineers are available for remote commissioning support.
Technical FAQ
Q: Is DS200SIOBH1A compatible with Mark VIe systems?
A: The DS200SIOBH1A is designed for the Mark VI platform. Mark VIe uses a different I/O architecture (IONET-based). Cross-compatibility requires engineering review — contact us before ordering.
Q: Can this board be repaired if it fails again after installation?
A: Yes. Konmask offers board-level repair services for GE Mark VI modules. Contact our technical team for a repair evaluation.
Q: What is the lead time if the unit is out of stock?
A: Typical lead time for sourcing is 2–4 weeks. We maintain a global supplier network for GE Speedtronic components. Contact us to join the waitlist.
Q: Do you provide a test report with the shipment?
A: A basic inspection checklist is included with every shipment. Full functional test reports are available upon request for an additional fee.
Q: What is the return policy?
A: We accept returns within 30 days of delivery for units in original, uninstalled condition. Installed units are covered under the 90-day warranty for defects.
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Contact: [email protected] | +0086 19859288691
