Product Overview

The General Electric DS200CTBAG1ADD is a specialized analog termination board designed for the Mark V Speedtronic Turbine Control System. As a critical interface component, this module facilitates the routing and termination of analog signals used in the regulation of gas and steam turbines. It is primarily housed within the core of the control rack (specifically the R5 core), where it supports both Simplex and Triple Modular Redundant (TMR) architectures.

This "G1ADD" version represents an enhanced revision of the original CTBA board, featuring upgraded circuitry for improved signal stability and voltage regulation. It serves as a central hub for analog I/O, ensuring that high-precision control signals are properly distributed between the field instrumentation and the system's processing cores.

Technical Specifications

• Manufacturer: General Electric (GE)

• Model Number: DS200CTBAG1ADD

• Series: Mark V Speedtronic (Legacy)

• Function: Analog Signal Termination and Distribution

• Board Dimensions: 16.3 cm x 10.2 cm x 3 cm

• Bus Connectivity: COREBUS Interface (JAI and JAJ)

• Serial Interface: 9-pin Male D-sub connector

• Mounting: Multi-point drilled holes with grounded conductive surrounds

• Hardware Revision: G1ADD (Advanced revision)

• Weight: 0.22 kg

• Origin: USA

Key Technical Characteristics

• Advanced Signal Integrity: The G1ADD revision incorporates optimized trace layouts and improved voltage-limiting hardware, including red-coated high-reliability diodes, to protect against signal spikes and electromagnetic interference.

• Redundant Architecture Support: Engineered to function seamlessly in TMR (Triple Modular Redundant) configurations, the board ensures that critical turbine control loops remain active even if a single processor core fails.

• Diverse Connectivity Options: The board is equipped with a comprehensive array of connectors, including two COREBUS ports for internal system communication, five vertical pin cable headers, and two vertical pin header connectors for field wiring.

• Robust Mechanical Design: Featuring a slim, elongated profile, the board includes reinforced mounting points at the corners and edges. Selective holes are surrounded by conductive pads to provide a low-impedance path to the chassis ground, enhancing RFI shielding.

• Maintenance-Friendly Diagnostics: The clear labeling of the J-connectors (JAI, JAJ, etc.) and the accessible layout of the voltage-limiting components simplify field troubleshooting and board replacement procedures.

Primary Applications

The DS200CTBAG1ADD is a vital component for the continued operation of legacy GE turbine assets, including:

• Heavy-duty Gas Turbines (Frame 5, 6, 7, and 9)

• Industrial Steam Turbine Control Systems

• Speed and Fuel Control Loops within the Mark V system

• Process signal termination in legacy DCS environments