GE DS200DCFBG2BNC MRP569662 DC Field Bus Termination Board
GE DS200DCFBG2BNC (MRP569662) – Product Overview
The GE DS200DCFBG2BNC (Part No. MRP569662) is a DC Field Bus Termination Board designed exclusively for GE’s Speedtronic Mark VIe turbine control systems. It serves as a centralized interface for field devices (sensors, actuators) within turbine control cabinets, providing signal conditioning, isolation, and secure connectivity to Mark VIe I/O modules via the DC Field Bus. Its integrated BNC connectors are optimized for vibration-monitoring instruments.
Key Parameters & Specifications
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Parameter
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Specification
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Model Number
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DS200DCFBG2BNC
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GE Part Number
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MRP569662
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Product Type
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DC Field Bus Termination Board / Field Interface Assembly
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Compatible System
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GE Speedtronic Mark VIe Turbine Control System
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Interfaces
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Screw Terminals (Analog/Digital/TC/RTD), BNC Connectors ×2, DC Field Bus Ports
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Signal Support
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Analog (4-20mA, ±10V), Digital (24VDC I/O), RTDs (Pt100/1000), Thermocouples (J/K/T), Vibration
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Bus Communication
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DC Field Bus (Terminated @ 120Ω)
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Isolation Voltage
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250V AC/DC (Field-to-System Barrier)
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Input Voltage
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24–30VDC (Sourced from I/O Pack)
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Operating Temperature
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-25°C to +70°C
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Mounting
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DIN Rail or Panel Mount
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Compliance
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UL/CE, RoHS, Industrial EMI/RFI Immunity
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Key Identifier
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“BNC” Suffix = Integrated BNC Connectors for Vibration Probes
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Series & Family
- Series: DS200 Series (Termination Boards)
- Platform: GE Speedtronic Mark VIe Turbine Control System
- Related Components: Interfaces with IS200/DS200 I/O Packs (e.g., IS200DSPX, IS200TVIBH)
Key Features
- Integrated BNC Ports – Direct connection for accelerometers/proximitors (no adapters).
- Signal Conditioning – Isolation, filtering, and scaling for accurate data acquisition.
- High-Density Wiring – Unified termination for 100+ field devices.
- DC Bus Termination – Built-in 120Ω resistors ensure signal integrity.
- Hot-Swappable – Replacement without system shutdown (config-dependent).
- Robust Housing – Conformal-coated PCB for humidity/dust resistance (IP20 equivalent).
Function & Role
- Signal Gateway: Bridges field sensors/actuators to Mark VIe I/O packs.
- Noise Protection: Isolates control system from ground loops/EMI.
- Power Distribution: Supplies 24VDC to field instruments (e.g., 4-20mA loops).
- Diagnostics Hub: Enables system-level fault tracing via Mark VIe software.
Typical Applications
- Temperature Monitoring: RTDs (bearings, lube oil), T/Cs (exhaust gas).
- Vibration Analysis: Proximity probes/accelerometers (via BNC).
- Pressure/Flow Control: Transmitters (fuel, coolant, hydraulic).
- Discrete Control: Limit switches, solenoid valves, alarms.
Application Fields
- Gas Turbine Plants: Combustion control, fuel management, emissions.
- Steam Turbines: Governor control, valve positioning, bearing protection.
- Combined Cycle (CCPP): Integration of GT/HRSG/ST systems.
- Industrial Drives: Compressor/pump mechanical drives.
- Aeroderivative Turbines: Marine/offshore power generation.
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