GE DS200TBCAG1AAB Analog I/O Terminal Board

الوصف

The GE DS200TBCAG1AAB Analog I/O Terminal Board is a field-wiring interface module used in the General Electric Mark V Speedtronic Turbine Control System.¹

It functions as a high-density termination point for multiple analog signals, primarily from Resistance Temperature Detectors ($\text{RTD}$s), before transmitting them to the main analog processing board.²

Key Functions and Features

This board’s primary role is to bridge the gap between the field instrumentation (sensors) and the sophisticated electronics of the $\text{Mark V}$ controller.

• Field Wiring Termination: It provides the physical connection points for external analog sensor wires, organizing them for safe connection to the control system cabinet.
  • It typically features two large terminal blocks (often ³$\text{2 x 90}$ signal wire terminals).⁴

     

• RTD Signal Input: The board’s primary function is to handle ⁵$\text{RTD}$ (Resistance Temperature Detector) inputs, which measure temperatures in the turbine or generator components.⁶

   

• Signal Routing to TCCA: It acts as a passive junction, routing the connected signals to the central Common Analog I/O Board (TCCA), which is responsible for conditioning, scaling, and analog-to-digital conversion.⁷

   

  • This transfer happens via two 50-pin connectors (labeled JCC and JDD) that connect to the ⁸$\text{TCCA}$ board via ribbon cables.⁹

     

  • For ¹⁰$\text{RTD}$ inputs, ¹¹$\text{JCC}$ typically carries signals 1-15, and ¹²$\text{JDD}$ carries signals 16-30.¹³

     

• Location: This board (Functional Acronym: TBCA) is commonly installed in a specific core or rack location, such as $\text{R5}$, within the $\text{Mark V}$ control panel.

Part Number and Revision

The long part number, $\text{DS200TBCAG1AAB}$, indicates its evolution from earlier revisions: