Description
1. Product Title
GE DS200UCPBG6AFB – I/O Engine CPU Daughter Board for Speedtronic Mark V Turbine Control System
2. Product Overview
The DS200UCPBG6AFB is a dedicated I/O engine processing daughterboard manufactured by GE, exclusively designed for the GE Speedtronic Mark V LM series turbine safety and control platform. Installed on the STCA slot within system I/O engines, DS200UCPBG6AFB adopts an 80486DX core processor to undertake real-time collection, calculation and logical processing of massive analog and digital field I/O signals. It transmits processed data across the internal COREBUS backplane bus and communicates with upper-level controllers via ARCNET and RS-232 interfaces, resolving signal delay, data transmission errors and decentralized I/O synchronization failures in large turbine control frameworks. Equipped with EPROM firmware storage, DIMM memory expansion slot and DIP switch hardware configuration, the board carries comprehensive on-board self-diagnosis and LED status indication, supporting hot-swap replacement to minimize forced outage risks for rotating equipment in high-risk power facilities.
3. Technical Specifications
- Brand: GE (General Electric)
- Model: DS200UCPBG6AFB
- Warranty: One Year
- Condition: 100% New & Original
- Core Processor: Intel 80486DX embedded microprocessor
- Power Supply: +5 VDC internal rack power input
- Memory & Storage: SIMM DRAM expansion socket, EPROM chip for firmware solid storage
- Communication: Dual isolated RS-232 serial ports, ARCNET industrial field bus, COREBUS backplane internal bus
- Configuration Method: 7-position DIP switch bank for hardware address and function setup
- Operating Temp: -40°C to +70°C continuous industrial operating range
- Installation: Daughter card plug-in mounting for Mark V I/O engine rack
- Diagnostics: Multi-channel front panel LED fault indicators, built-in cyclic self-test routine
- Dimensions/Weight: 309mm × 211mm × 41mm, net weight approximately 2.0kg
- Compatible System: GE Speedtronic Mark V gas & steam turbine control system
DS200U
4. Application Scenarios
- Combined Cycle Thermal Power Plants: Deployed in Mark V turbine control cabinets of gas turbine and steam turbine units, processing speed, temperature, vibration and exhaust parameters to execute fuel regulation, load distribution and overspeed emergency trip protection.
- Oil & Gas Offshore Platforms & Refineries: Integrated into gas compressor turbine control systems for natural gas transmission stations and petrochemical plants, ensuring stable process parameter monitoring and safety interlock triggering under harsh offshore environmental conditions.
- Industrial Heavy-Duty Steam Turbine Drives: Applied in steel mill blast furnace blowers, large chemical plant circulating pump prime movers and paper factory turbine generator sets, delivering reliable I/O data computation and closed-loop control for critical rotating machinery protection loops.







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