GE DS200DCFBG2BNC (MRP420024) – Product Overview
The GE DS200DCFBG2BNC (Part No. MRP420024) is a legacy DC Field Bus Termination Board for GE’s Speedtronic Mark VIe turbine control systems. This industrial-grade interface module provides centralized signal conditioning, isolation, and connectivity between field instruments (sensors/actuators) and Mark VIe I/O packs via DC Field Bus. Its integrated BNC connectors specifically support vibration monitoring.
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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MRP420024
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Product Type
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DC Field Bus Termination Board
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Compatible System
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GE Speedtronic Mark VIe (Legacy Systems)
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I/O Interfaces
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• Screw terminals (Analog/Digital/TC/RTD)
• Dual BNC connectors (Vibration) • DC Field Bus ports (RJ45/terminal) |
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Signal Handling
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Analog (4-20mA, ±10V), Digital (24VDC), RTDs (Pt100/1000), Thermocouples (J/K/T/E), Vibration
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Bus Termination
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Integrated 120Ω resistor
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Isolation Rating
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250V AC/DC (Channel-to-channel & field-to-system)
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Operating Voltage
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24-30VDC (Sourced from I/O pack)
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Temp Range
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-25°C to +70°C (Industrial)
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Mounting
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DIN rail or panel mount (Standard 35mm rail)
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Compliance
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UL 508, CE, RoHS
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Key Suffix
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BNC = Vibration channel support
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Series & Family
- Series: DS200 Termination Board Series
- Platform: GE Speedtronic Mark VIe (Legacy Generation)
- Compatible I/O: IS200DSPX, IS200TVIBH, IS200VAICH, IS200EPSMG, etc.
Key Features
- Vibration-Ready – Dual integrated BNC ports for accelerometers/proximity probes
- Full Signal Conditioning – Isolation, surge protection & noise filtering
- DC Field Bus Hub – Terminates communication bus (120Ω) between I/O packs
- High-Density Termination – 100+ field wiring points with color-coded sections
- Hot-Replaceable – Tool-less replacement during maintenance windows
- Legacy Compatibility – Direct replacement for DS200DCFBG1* boards
Function & Role
- Signal Gateway: Physically interfaces field devices with Mark VIe control system
- Noise Isolation: Breaks ground loops & protects I/O from EMI/transients
- Power Distribution: Supplies 24VDC to transmitters/sensors
- Bus Integrity: Terminates DC Field Bus to prevent signal reflection
Primary Applications
- Vibration Monitoring: Bearing/probe interfaces via BNC
- Temperature Sensing: Thermocouple/RTD termination (exhaust, bearings)
- Analog Control: 4-20mA pressure/flow transmitters
- Discrete I/O: Limit switches, solenoid valves, alarms
- System Integration: DC Field Bus backbone connectivity
Application Fields
- Gas Turbine Control: Combustion monitoring, fuel systems, emissions
- Steam Turbine Protection: Speed governing, valve sequencing
- Power Generation: Combined cycle plants (CCPP), cogeneration
- Industrial Turbines: Compressor/pump drive units
- Hydroelectric: Auxiliary system monitoring
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